9609454	Method for playing back the sound of a digital audio signal
9609453	Method and apparatus for controlling multimedia execution on a device
9609452	Obtaining sparseness information for higher order ambisonic audio renderers
9609451	Multi-rate system for audio processing
9609436	Systems and methods for audio creation and delivery
9609434	Device and method for driving a sound system and sound system
9609433	Automatic audio system equalizing
9609418	Signal processing circuit
9609383	Directional audio for virtual environments
9608584	Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal
9607629	Frequency response display
9607622	Audio-signal processing device, audio-signal processing method, program, and recording medium
9602948	Motor vehicle audio system
9602947	Apparatus and a method for processing audio signal to perform binaural rendering
9602946	Method and apparatus for providing virtual audio reproduction
9602945	Apparatus, method, and program for information processing
9602944	Apparatus and method for creating proximity sound effects in audio systems
9602943	Audio processing method and audio processing apparatus
9602927	Speaker and room virtualization using headphones
9602923	Estimating a room impulse response
9602916	Signal processing device, signal processing method, measurement method, and measurement device
9601122	Smooth configuration switching for multichannel audio
9596555	Camera driven audio spatialization
9596549	Audio system and method of operation therefor
9595266	Audio encoding/decoding device using reverberation signal of object audio signal
9591427	Capturing audio impulse responses of a person with a smartphone
9591426	Method and apparatus for an ultrasonic emitter system floor audio unit
9591425	Parametric stereo upmix apparatus, a parametric stereo decoder, a parametric stereo downmix apparatus, a parametric stereo encoder
9591424	Generating an output signal by send effect processing
9591423	Nonlinear power supply ramping for pop-click noise reduction
9591420	Generation of individual sound zones within a listening room
9591418	Method, apparatus and computer program for generating an spatial audio output based on an spatial audio input
9591410	Hearing assistance apparatus
9591405	Automatic audio enhancement system
9591402	Transmit audio in a target space
9589573	Wind noise reduction
9589550	Methods and systems for measuring and reporting an energy level of a sound component within a sound mix
9584948	Method and apparatus for operating multiple speakers using position information
9584947	Optimized calibration of a multi-loudspeaker sound playback system
9584946	Audio diarization system that segments audio input
9584945	Surround sound effects provided by cell phones
9584944	Stereo decoding method and apparatus using group delay and group phase parameters
9584943	Method and apparatus for processing audio signals
9584942	Determination of head-related transfer function data from user vocalization perception
9584940	Wireless exchange of data between devices in live events
9584938	Method of determining acoustical characteristics of a room or venue having n sound sources
9584936	Method for controlling sound in an auditorium
9584933	Method and apparatus for localization of streaming sources in hearing assistance system
9584918	Dynamic volume control and multi-spatial processing protection
9584915	Spatial audio with remote speakers
9584912	Spatial audio rendering and encoding
9584906	Mixing device, mixing signal processing device, mixing program and mixing method
9584905	Audio signal mixing
9584653	Smartphone with user interface to externally localize telephone calls
9584235	Multi-channel audio processing
9583113	Audio compression using vector field normalization
9583112	Signal processing apparatus and signal processing method, encoder and encoding method, decoder and decoding method, and program
9582576	Cloud hosted audio rendering based upon device and environment profiles
9578440	Method for controlling a speaker array to provide spatialized, localized, and binaural virtual surround sound
9578439	Method, system and article of manufacture for processing spatial audio
9578438	Apparatus and method for driving loudspeakers of a sound system in a vehicle
9578437	Method and apparatus for processing audio signals
9578436	Content-aware audio modes
9578435	Apparatus and method for enhanced spatial audio object coding
9578418	System and method for controlling output of multiple audio output devices
9577595	Sound processing apparatus, sound processing method, and program
9576501	Providing sound as originating from location of display at which corresponding text is presented
9573523	Spatial sonification of accelerating objects
9571950	System and method for audio reproduction
9571924	Speaker array apparatus and method for setting speaker array apparatus
9571918	Audio signal output device and method of processing an audio signal
9570083	Stereo audio encoder and decoder
9570081	Backwards compatible audio representation
9569073	Method for outputting a modified audio signal and graphical user interfaces produced by an application program
9565509	Enhanced coding and parameter representation of multichannel downmixed object coding
9565508	Loudness level and range processing
9565503	Audio and location arrangements
9565316	Multidimensional virtual learning audio programming system and method
9565314	Spatial multiplexing in a soundfield teleconferencing system
9564138	Method and device for processing audio signal
9560467	3D immersive spatial audio systems and methods
9560466	Systems and methods for simulation of mixing in air of recorded sounds
9560465	Digital audio filters for variable sample rates
9560464	System and method for producing head-externalized 3D audio through headphones
9560461	Automatic loudspeaker polarity detection
9560460	Self-calibration loudspeaker system
9560450	Speaker array apparatus
9560445	Enhanced spatial impression for home audio
9559656	System for adjusting loudness of audio signals in real time
9557962	Voice control device, voice control method and program
9554230	Audio signal correction and calibration for a room environment
9554229	Amplifying audio-visual data based on user's head orientation
9554228	Method for implementing surround sound using a plurality of vehicles
9554227	Method and apparatus for processing audio signal
9554061	Smart hub
9552820	Apparatus and method for processing multi-channel audio signal using space information
9552819	Multiplet-based matrix mixing for high-channel count multichannel audio
9552818	Smooth configuration switching for multichannel audio rendering based on a variable number of received channels
9549277	Method for efficient sound field control of a compact loudspeaker array
9549276	Audio apparatus and audio providing method thereof
9549275	System and tools for enhanced 3D audio authoring and rendering
9549258	Audio output balancing
9544707	Audio output balancing
9544706	Customized head-related transfer functions
9544705	Sound system and method for capturing and reproducing sounds originating from a plurality of sound sources
9544704	System and method for evaluating media segments for interestingness
9544679	Adjusting speakers using facial recognition
9544527	Techniques for localized perceptual audio
9542952	Decoding device, decoding method, encoding device, encoding method, and program
9542951	Method and an apparatus for processing an audio signal
9538309	Real-time loudspeaker distance estimation with stereo audio
9538308	Adaptive room equalization using a speaker and a handheld listening device
9538307	Audio signal reproduction device and audio signal reproduction method
9538306	Surround component generator
9538305	Calibration error conditions
9538289	Control parameter dependent audio signal processing
9536529	Apparatus for processing an audio signal and method thereof
9532159	Moving a sound localization point of a voice of a computer program during a voice exchange
9532158	Reflected and direct rendering of upmixed content to individually addressable drivers
9532157	Audio processing for mono signals
9532156	Apparatus and method for sound stage enhancement
9532153	Method and a system of providing information to a user
9531884	Stereo echo suppressing device, echo suppressing device, stereo echo suppressing method, and non-transitory computer-readable recording medium storing stereo echo suppressing program
9530421	Encoding and reproduction of three dimensional audio soundtracks
9530419	Encoding of stereophonic signals
9530396	Visually-assisted mixing of audio using a spectral analyzer
9529431	Directional sound systems including eye tracking capabilities and related methods
9525958	Multidimensional virtual learning system and method
9525956	Determining the inter-channel time difference of a multi-channel audio signal
9525955	Digital speaker system and electrical connection method for digital speaker system
9525954	Audio device and audio producing method
9522330	Three-dimensional audio sweet spot feedback
9521502	Method for determining a stereo signal
9521501	Loudness adjustment for downmixed audio content
9521500	Portable electronic device with directional microphones for stereo recording
9521488	Playback device setting based on distortion
9521487	Calibration adjustment based on barrier
9520135	Reconstructing audio signals with multiple decorrelation techniques
9519346	Low-frequency effects haptic conversion system
9516447	Method and apparatus for generating and restoring downmixed signal
9516446	Scalable downmix design for object-based surround codec with cluster analysis by synthesis
9516444	Wireless control and calibration of audio system
9516440	Providing a multi-channel and a multi-zone audio environment
9516431	Spatial enhancement mode for hearing aids
9516419	Playback device setting according to threshold(s)
9516418	Sound field spatial stabilizer
9516416	Multi-loudspeaker active noise cancelling headphone providing stereo effct and improved ambient noise reduction
9516405	Multimedia playing system and sound channel control method thereof
9514758	Method and an apparatus for processing an audio signal
9513157	Selective audio/sound aspects
9510127	Method and apparatus for generating an audio output comprising spatial information
9510126	Sound field control device, sound field control method, program, sound control system and server
9510125	Parametric wave field coding for real-time sound propagation for dynamic sources
9510124	Parametric binaural headphone rendering
9510111	Method and apparatus for a binaural hearing assistance system using monaural audio signals
9510098	Method for recording and reconstructing three-dimensional sound field
9510089	Dynamic location determination for a directionally controllable parametric emitter
9508386	Method and apparatus for synchronizing audio and video signals
9508353	Method and apparatus for generating a stereo signal from a down-mixed mono signal
9508351	SBR bitstream parameter downmix
9508345	Continuous voice sensing
9507560	Device playback failure recovery and redistribution
9507559	Audio outputting apparatus, control method thereof and audio outputting system
9504919	Vertical and horizontal perception audio for a gaming device
9503832	System and methods for motion restoration in acoustic processing of recorded sounds
9503831	Audio playback method and apparatus
9503819	Progressive audio balance and fade in a multi-zone listening environment
9503817	Sound reproduction device
9503816	Surround signal generating device, surround signal generating method and surround signal generating program
9503810	Arrangement for mixing at least two audio signals
9502050	Noise dependent signal processing for in-car communication systems with multiple acoustic zones
9502045	Coding independent frames of ambient higher-order ambisonic coefficients
9502044	Compression of decomposed representations of a sound field
9502042	Apparatus for processing an audio signal and method thereof
9497562	Sound field control apparatus and method
9497561	Wave field synthesis by synthesizing spatial transfer function over listening region
9497560	Audio reproducing apparatus and method
9497545	Analog area speaker panel with precision placement and direction of audio radiation
9495968	Identifying sources from which higher order ambisonic audio data is generated
9495591	Object recognition using multi-modal matching scheme
9491561	Acoustic echo cancellation with internal upmixing
9491560	System and method for improving headphone spatial impression
9491559	Method and apparatus for directional acoustic fitting of hearing aids
9491545	Methods and devices for reverberation suppression
9489957	Audio encoder and decoder
9489955	Indicating frame parameter reusability for coding vectors
9489954	Encoding and rendering of object based audio indicative of game audio content
9489953	Directional coding conversion
9489043	Display device and controlling method
9485601	Surround audio compatibility assessment
9485600	Audio system, audio signal processing device and method, and program
9485589	Enhanced dynamics processing of streaming audio by source separation and remixing
9485564	System of sound reproduction with audio headsets provided with sound processors, components of such a system and associated method
9484710	Semiconductor laser device
9484039	Method and an apparatus for processing an audio signal
9484008	Method and apparatus for down-mixing of a multi-channel audio signal
9483228	Live engine
9479888	Methods and apparatus for implementing sound events
9479887	Method and apparatus for pruning audio based on multi-sensor analysis
9479886	Scalable downmix design with feedback for object-based surround codec
9479871	Method, medium, and system synthesizing a stereo signal
9479858	Method and system for electronic packaging for a headset
9478225	Systems, methods, apparatus, and computer-readable media for three-dimensional audio coding using basis function coefficients
9473871	Systems and methods for audio management
9473870	Loudspeaker position compensation with 3D-audio hierarchical coding
9473869	Audio signal processing device
9473865	Integrated motion detection using changes in acoustic echo path
9473863	System and method for improving audio capture quality in a living room type environment
9473852	Pre-processing of a channelized music signal
9467794	Method and system for audio channel setup
9467793	Systems, methods, and apparatus for recording three-dimensional audio and associated data
9467792	Method for processing of sound signals
9467791	System and method for adaptive audio signal generation, coding and rendering
9467786	Portable terminal, hearing aid, and method of indicating positions of sound sources in the portable terminal
9466303	Audio signal decoder, audio signal encoder, method for providing an upmix signal representation, method for providing a downmix signal representation, computer program and bitstream using a common inter-object-correlation parameter value
9465450	Method of controlling a system
9462407	Method and apparatus for managing presentation of media content
9462406	Method and apparatus for facilitating spatial audio capture with multiple devices
9462405	Apparatus and method for generating panoramic sound
9462404	Compatible multi-channel coding/decoding
9462387	Audio system and method of operation therefor
9462386	Wired, wireless, infrared, and powerline audio entertainment systems
9462384	Nomadic device for controlling one or more portable speakers
9462383	Audio signal processing device and audio signal processing method
9462330	Multimedia audio inserter
9460728	Method and apparatus for encoding multi-channel HOA audio signals for noise reduction, and method and apparatus for decoding multi-channel HOA audio signals for noise reduction
9460726	Method and device for decoding an audio soundfield representation for audio playback
9460725	Method, medium, and apparatus encoding and/or decoding extension data for surround
9460724	Audio signal decoder, audio signal encoder, method for providing an upmix signal representation, method for providing a downmix signal representation, computer program and bitstream using a common inter-object-correlation parameter value
9460723	Error concealment strategy in a decoding system
9456289	Converting multi-microphone captured signals to shifted signals useful for binaural signal processing and use thereof
9454971	Method and apparatus for compressing and decompressing a higher order ambisonics signal representation
9454969	Multichannel audio coding
9454967	Apparatus and method for generating wave field synthesis signals
9451380	Apparatus and method for localizing sound image for vehicle's driver
9451379	Sound field analysis system
9451378	Method and apparatus to reproduce multi-channel audio signal in multi-channel speaker system
9451363	Method and apparatus for playback of a higher-order ambisonics audio signal
9445214	Maintaining a fixed sound localization point of a voice during a telephone call for a moving person
9445213	Systems and methods for providing surround sound using speakers and headphones
9445199	Method and apparatus for determining dominant sound source directions in a higher order Ambisonics representation of a sound field
9445198	Polyhedral audio system based on at least second-order eigenbeams
9445197	Signal processing for a headrest-based audio system
9445187	Method and an apparatus for processing an audio signal
9445174	Audio capture apparatus
9439022	Playback device speaker configuration based on proximity detection
9439021	Proximity detection using audio pulse
9439020	Audio signal processing unit and audio transmission system, in particular a microphone system
9439019	Sound signal processing method and apparatus
9439018	Audio data processing device and audio data processing method
9439010	System for tuning audio processing features and method thereof
9438993	Methods and devices to generate multiple-channel audio recordings
9438976	Multifunctional wireless LED device and a multifunctional wireless speaker system
9437179	Reverberation suppression device
9432793	Head-related transfer function convolution method and head-related transfer function convolution device
9432792	System and methods for acoustic priming of recorded sounds
9432791	Location aware self-configuring loudspeaker
9432790	Real-time sound propagation for dynamic sources
9432789	Sound separation device and sound separation method
9432237	VOIP device, VOIP conferencing system, and related method
9431980	Apparatus, systems and methods for adjusting output audio volume based on user location
9426600	Audio precompensation controller design with pairwise loudspeaker channel similarity
9426599	Method and apparatus for personalized audio virtualization
9426598	Spatial calibration of surround sound systems including listener position estimation
9426597	Method and system for playing back an audio signal
9426596	Method and apparatus for control of randering multiobject or multichannel audio signal using spatial cue
9426595	Signal processing apparatus, signal processing method, and storage medium
9426589	Determination of individual HRTFs
9426575	Apparatus and method of reproducing virtual sound of two channels based on listener's position
9426564	Audio processing device, method and program
9426562	Passive group delay beam forming
9426405	System and method of determining the appropriate mixing volume for an event sound corresponding to an impact related events and determining the enhanced event audio
9426300	Matching reverberation in teleconferencing environments
9424853	Apparatus and method for synchronizing multichannel extension data with an audio signal and for processing the audio signal
9424852	Determining the inter-channel time difference of a multi-channel audio signal
9424830	Apparatus and method for encoding audio signal, system and method for transmitting audio signal, and apparatus for decoding audio signal
9420394	Panning presets
9420393	Binaural rendering of spherical harmonic coefficients
9420392	Method for operating a virtual reality system and virtual reality system
9420375	Method, apparatus, and computer program product for categorical spatial analysis-synthesis on spectrum of multichannel audio signals
9420373	Display apparatus, hearing level control apparatus, and method for correcting sound
9420109	Clustering of audio streams in a 2D / 3D conference scene
9419575	Audio settings based on environment
9418668	Matrix encoder with improved channel separation
9414177	Audio signal processing method and audio signal processing device
9413321	System and method for digital signal processing
9412375	Methods and apparatuses for representing a sound field in a physical space
9411882	Interactive audio content generation, delivery, playback and sharing
9408011	Automated user/sensor location recognition to customize audio performance in a distributed multi-sensor environment
9408010	Audio system and method therefor
9407988	Method and apparatus for audio processing
9405439	Audio signal controller
9402145	Wireless speaker system with distributed low (bass) frequency
9402144	Apparatus for changing an audio scene and an apparatus for generating a directional function
9402143	Method for processing an audio signal, audio playback system, and processing unit for processing audio signals
9402095	Method and apparatus for calibrating an audio playback system
9401151	Parametric encoder for encoding a multi-channel audio signal
9400632	Playback according to playback responsibility in stereo pair
9398394	System and method for stereo field enhancement in two-channel audio systems
9398393	Aural proxies and directionally-varying reverberation for interactive sound propagation in virtual environments
9398392	Audio calibration and adjustment
9398391	Stereo widening over arbitrarily-configured loudspeakers
9398390	DJ stem systems and methods
9392390	Method of applying a combined or hybrid sound-field control strategy
9392389	Directional audio notification
9392388	Noise identifying apparatus and noise identifying method using the same
9392367	Sound reproduction apparatus and sound reproduction method
9392350	Audio communication system with merging and demerging communications zones
9392089	Mobile electronic device and sound playback method thereof
9386391	Switching between binaural and monaural modes
9386390	Information processing apparatus and sound processing method
9386389	Audio signal processing device
9386192	AV timing measurement and correction for digital television
9385676	System and method for dynamically mixing audio signals
9384741	Binauralization of rotated higher order ambisonics
9384726	Feedback microphones encoder modulators, signal generators, mixers, amplifiers, summing nodes
9384723	Method of retrieving processing properties and audio processing system
9380400	Optimizing audio systems
9380399	Handheld interface for speaker location
9380398	Sound processing apparatus, method, and program
9380388	Channel crosstalk removal
9380387	Phase independent surround speaker
9380373	Gaming headset with programmable audio paths
9380262	Mobile terminal and method for operating same
9378747	Method and apparatus for layout and format independent 3D audio reproduction
9378745	MDCT-based complex prediction stereo coding
9377941	Audio speaker selection for optimization of sound origin
9374653	Method for a multi-channel wireless speaker system
9374641	Device and method for driving a sound system and sound system
9374640	Method and system for optimizing center channel performance in a single enclosure multi-element loudspeaker line array
9374549	Head mounted display and method of outputting audio signal using the same
9374548	Video/audio system and method enabling a user to select different views and sounds associated with an event
9374450	Method for reproducing music file of mobile communication terminal and mobile terminal implementing the same
9374128	Apparatus for encoding/decoding multichannel signal and method thereof
9373335	Processing audio objects in principal and supplementary encoded audio signals
9372251	System for spatial extraction of audio signals
9370720	Gaming systems for noise suppression and selective sound amplification
9369818	Filtering with binaural room impulse responses with content analysis and weighting
9369817	Broad sound field loudspeaker system
9369803	Apparatus and method for removing noise
9369801	Wireless speaker system with noise cancelation
9369164	Method, medium, and system decoding and encoding a multi-channel signal
9368117	Device and system having smart directional conferencing
9363620	System for controlling audio frequencies of electronic appliances and a method of the same
9363619	Music collection navigation device and method
9363618	Method and device for controlling speaker array sound field based on quadratic residue sequence combinations
9363602	Method and apparatus for providing virtualized audio files via headphones
9363586	Narrow profile speaker configurations and systems
9361898	Three-dimensional sound compression and over-the-air-transmission during a call
9361896	Temporal and spatial shaping of multi-channel audio signal
9358454	Audio headset system and apparatus
9357327	Loudspeaker system for reproducing multi-channel sound with an improved sound image
9357326	Embedding data in stereo audio using saturation parameter modulation
9357325	Apparatus and method for generating multimedia data, and apparatus and method for playing multimedia data
9357324	Device and method for optimizing stereophonic or pseudo-stereophonic audio signals
9357323	Method and apparatus for audio matrix decoding
9357308	System and method for dynamic control of audio playback based on the position of a listener
9357306	Multichannel audio calibration method and apparatus
9357304	Sound system for establishing a sound zone
9357282	Listening device and accompanying signal processing method
9356572	Sound processing apparatus, sound system and sound processing method
9356571	Earbuds and earphones for personal sound system
9354704	Low-frequency effects haptic conversion system
9351093	Multichannel sound source identification and location
9351092	Audio processing device, audio processing method, and program
9351074	Audio system and audio characteristic control device
9351070	Positional disambiguation in spatial audio
9350309	System and method for digital signal processing
9344829	Indication of barrier detection
9344828	System and method for digital signal processing
9344827	Method and apparatus for audio output, and electronic device
9344826	Method and apparatus for communicating with audio signals having corresponding spatial characteristics
9344825	At least one of intelligibility or loudness of an audio program
9344824	Method and apparatus for conversion of a multi-channel audio signal into a two-channel audio signal
9344632	AV system
9344558	Communications system for anonymous calls
9344544	Moving a sound localization point of a voice of a person during a telephone call
9338579	Device and method for simulating spatial sound
9338578	Localization control method of sound for portable device and portable device thereof
9338577	Game system, game process control method, game apparatus, and computer-readable non-transitory storage medium having stored therein game program
9338576	Apparatus and method for listening room equalization using a scalable filtering structure in the wave domain
9338575	Image steered microphone array
9338574	Method and apparatus for changing the relative positions of sound objects contained within a Higher-Order Ambisonics representation
9338573	Matrix decoder with constant-power pairwise panning
9338572	Method for practical implementation of sound field reproduction based on surface integrals in three dimensions
9338565	Listening system adapted for real-time communication providing spatial information in an audio stream
9338554	Sound system for establishing a sound zone
9338552	Coinciding low and high frequency localization panning
9338549	Acoustic localization of a speaker
9338420	Video analysis assisted generation of multi-channel audio data
9338394	System and method for providing enhanced audio in a video environment
9332373	Audio depth dynamic range enhancement
9332372	Virtual spatial sound scape
9332371	Estimation of loudspeaker positions
9332370	Method and apparatus for using spatial audio rendering for a parallel playback of call audio and multimedia content
9332369	System and method for automatic calibration of a transducer
9332360	Compression and mixing for hearing assistance devices
9332349	Sound image localization apparatus
9332211	Mobile terminal and audio zooming method thereof
9326087	Sound augmentation system performance health monitoring
9326086	Neural induced enhancement of audio signals
9326085	Device and method for generating an ambience signal
9326084	Multi lobe stereo loudspeaker in one cabinet
9326083	Audio signal processing system
9326082	Song transition effects for browsing
9326067	Multiplexing audio system and method
9326061	Sound output apparatus, audio processing apparatus, sound output method, and audio processing method
9324329	Method for parametric spatial audio coding and decoding, parametric spatial audio coder and parametric spatial audio decoder
9319821	Method, an apparatus and a computer program for modification of a composite audio signal
9319820	Apparatuses and methods for use in creating an audio scene for an avatar by utilizing weighted and unweighted audio streams attributed to plural objects
9319819	Binaural rendering method and apparatus for decoding multi channel audio
9319818	Stereo signal down-mixing method, encoding/decoding apparatus and encoding and decoding system
9319816	Characterizing environment using ultrasound pilot tones
9319802	Personal audio system and method
9319794	Surround sound system
9319780	Smart passive speaker drive
9319770	Audio devices configured to emit differing sound profiles and related methods
9319741	Finding devices in an entertainment system
9319014	Method and an apparatus for processing an audio signal
9313601	Audio signal correction and calibration for a room environment
9313600	Method and apparatus of adjusting distribution of spatial sound energy
9313599	Apparatus and method for multi-channel signal playback
9313598	Method and apparatus for stereo to five channel upmix
9312829	System for adjusting loudness of audio signals in real time
9311925	Method, apparatus and computer program for processing multi-channel signals
9311923	Adaptive audio processing based on forensic detection of media processing history
9311922	Method, apparatus, and storage medium for decoding encoded audio channels
9307340	Audio system equalization for portable media playback devices
9307339	Display apparatus and method for providing stereophonic sound service
9307338	Upmixing method and system for multichannel audio reproduction
9307335	Device for estimating placement of physical objects
9305566	Audio signal processing apparatus
9301077	Context-based audio tuning
9301076	Game system, game process control method, game apparatus, and computer-readable non-transitory storage medium having stored therein game program
9300924	Electronic handheld audio/video receiver and listening/viewing device
9300266	Speaker equalization for mobile devices
9299349	Voice control device, voice control method and program
9294863	Acoustic device, augmented reality acoustic device, acoustic system, acoustic processing method, and recording medium
9294862	Method and apparatus for processing audio signals using motion of a sound source, reverberation property, or semantic object
9294861	Audio signal processing device
9294854	Information processor, audio processor, audio processing system and program
9294207	Method and device for controlling the broadcasting of audio contents by two loudspeakers
9288604	Downmixing control
9288603	Systems, methods, apparatus, and computer-readable media for backward-compatible audio coding
9288602	Stereo extension apparatus and method
9288601	Broad sound loudspeaker system
9288600	Sound generator
9288597	Distributed wireless speaker system with automatic configuration determination when new speakers are added
9286898	Methods and apparatuses for providing tangible control of sound
9286879	Localization of a wireless user equipment (UE) device based on out-of-hearing band audio signatures for ranging
9286863	Apparatus and method for a celeste in an electronically-orbited speaker
9282420	Method and system for multi-channel mixing for transmission of audio over a network
9282419	Audio processing method and audio processing apparatus
9282418	Cognitive loudspeaker system
9282417	Spatial sound reproduction
9282416	Wireless system for hearing communication devices providing wireless stereo reception modes
9282408	Processing method and processing apparatus for stereo audio output enhancement
9277344	Multi-dimensional audio transformations and crossfading
9277343	Enhanced stereo playback with listener position tracking
9277322	System for optimizing the perceived sound quality in virtual sound zones
9277321	Device discovery and constellation selection
9277311	Controlling a speaker arrangement in a vehicle
9276542	System and method for digital signal processing
9275646	Method for inter-channel difference estimation and spatial audio coding device
9271103	Audio control based on orientation
9271102	Multi-dimensional parametric audio system and method
9271101	System and method for transmitting/receiving object-based audio
9271100	Sound field spatial stabilizer with spectral coherence compensation
9271099	Method and apparatus to use audio port to provide power and data communications for peripheral devices
9271081	Method and device for enhanced sound field reproduction of spatially encoded audio input signals
9271080	Audio spatialization and environment simulation
9271078	Audio output device capable of switching a sound field
9268522	Devices and methods for conveying audio information in vehicles
9264840	Multi-dimensional audio transformations and crossfading
9264839	Playback device configuration based on proximity detection
9264838	System and method for variable decorrelation of audio signals
9264837	Multidimensional virtual learning system and method
9264836	System for adjusting perceived loudness of audio signals
9264835	Exposing off-host audio processing capabilities
9264834	System for modifying an acoustic space with audio source content
9264830	Audio level meter
9264812	Apparatus and method for localizing a sound image, and a non-transitory computer readable medium
9264800	Audio signal processing apparatus and audio signal processing method
9264794	Orientation-responsive acoustic array control
9264527	Hands-free telephone conversation apparatus
9258665	Apparatus, systems and methods for controllable sound regions in a media room
9258664	Headphone audio enhancement system
9258639	Method and apparatus for creating personal sound zone
9257953	Digital equalizing filters with fixed phase response
9257127	Apparatus and method for coding and decoding multi-object audio signal with various channel including information bitstream conversion
9255982	Apparatus and method for the binaural reproduction of audio sonar signals
9253586	Devices, methods and computer program products for controlling loudness
9253585	Speaker apparatus
9253574	Direct-diffuse decomposition
9253573	Acoustic signal processing apparatus, acoustic signal processing method, program, and recording medium
9253572	Methods and systems for synthetic audio placement
9253561	Orientation-responsive acoustic array control
9251797	Preserving matrix surround information in encoded audio/video system and method
9247371	Sound processing apparatus
9247370	Sound image localization control apparatus
9247369	Method for enlarging a location with optimal three-dimensional audio perception
9247192	Mobile terminal and audio zooming method thereof
9246457	Amplifying device
9245514	Speaker with multiple independent audio streams
9244925	Audio distribution for electronic tabletop system
9241231	Information processing system, computer-readable non-transitory storage medium having stored therein information processing program, information processing control method, and information processing apparatus
9241230	Extraction of channels from multichannel signals utilizing stimulus
9241218	Apparatus and method for decomposing an input signal using a pre-calculated reference curve
9241216	Data structure for higher order ambisonics audio data
9241214	Direct sound extraction device and reverberant sound extraction device
9237407	High quality, controlled latency multi-channel wireless digital audio distribution system and methods
9237393	Headset with accelerometers to determine direction and movements of user head and method
9236843	Sound system with individual playback zones
9236842	Bass enhancement system
9233308	System and method for delivering media over network
9232337	Method for visualizing the directional sound activity of a multichannel audio signal
9232336	Head related transfer function generation apparatus, head related transfer function generation method, and sound signal processing apparatus
9232335	Networked speaker system with follow me
9232334	Apparatus and method for processing multi-channel audio signal using space information
9232319	Systems and methods for audio processing
9232312	Multi-channel audio enhancement system
9226091	Acoustic surround immersion control system and method
9226090	Sound localization for an electronic call
9226089	Signal generation for binaural signals
9225306	Gain control for an electro-acoustic device with a facial movement detector
9219974	Method and apparatus for simultaneously controlling near sound field and far sound field
9219973	Method and system for scaling ducking of speech-relevant channels in multi-channel audio
9219972	Efficient audio coding having reduced bit rate for ambient signals and decoding using same
9219961	Information processing system, computer-readable non-transitory storage medium having stored therein information processing program, information processing control method, and information processing apparatus
9219959	Multi-channel pairing in a media system
9218818	Efficient and scalable parametric stereo coding for low bitrate audio coding applications
9215545	Sound stage controller for a near-field speaker-based audio system
9215544	Optimization of binaural sound spatialization based on multichannel encoding
9215542	Apparatus and method for measuring a plurality of loudspeakers and microphone array
9215523	Audio output device
9210526	Audio localization techniques for visual effects
9210525	Sound field control apparatus and sound field control method
9210505	Maintaining spatial stability utilizing common gain coefficient
9204238	Electronic device and method for reproducing surround audio signal
9204237	Method of generating left and right surround signals from a stereo sound signal
9204236	System and tools for enhanced 3D audio authoring and rendering
9204138	User controlled regional display of mixed two and three dimensional content
9201580	Sound alignment user interface
9197979	Object-based audio system using vector base amplitude panning
9197978	Sound reproduction apparatus and sound reproduction method
9197977	Audio spatialization and environment simulation
9197962	Polyhedral audio system based on at least second-order eigenbeams
9197755	Multidimensional virtual learning audio programming system and method
9196257	Apparatus and a method for converting a first parametric spatial audio signal into a second parametric spatial audio signal
9196238	Audio processing based on changed position or orientation of a portable mobile electronic apparatus
9191769	Method and a device for reproducing low frequency sound in a rectangular room
9191768	Diffracted sound reduction device, diffracted sound reduction method, and filter coefficient determination method
9191767	Directional sound apparatus, method graphical user interface and software
9191766	Group-delay based bass management
9191765	In-vehicle audio device
9191764	Binaural audio signal-based applications
9191763	Method for headphone reproduction, a headphone reproduction system, a computer program product
9191755	Spatial enhancement mode for hearing aids
9191733	Headphone apparatus and sound reproduction method for the same
9191703	Device control using motion sensing for wireless home entertainment devices
9185509	Apparatus for processing of audio signals
9185508	Multidimensional virtual learning system and method
9185507	Hybrid derivation of surround sound audio channels by controllably combining ambience and matrix-decoded signal components
9185500	Compression of spaced sources for hearing assistance devices
9185490	Single enclosure surround sound loudspeaker system and method
9183839	Apparatus, method and computer program for providing a set of spatial cues on the basis of a microphone signal and apparatus for providing a two-channel audio signal and a set of spatial cues
9179243	Device communication system with proximity synchronization mechanism and method of operation thereof
9179238	Application software and method for automatically adjusting environmental frequency response
9179237	Virtual audio system tuning
9179236	System and method for adaptive audio signal generation, coding and rendering
9179235	Meta-parameter control for digital audio data
9173048	Method and system for generating a matrix-encoded two-channel audio signal
9173032	Methods of using head related transfer function (HRTF) enhancement for improved vertical-polar localization in spatial audio systems
9172996	Automatic adjustment of devices in a home entertainment system
9172901	Techniques for localized perceptual audio
9167369	Speaker array apparatus
9167368	Event notification on a mobile device using binaural sounds
9167367	Optimized low-bit rate parametric coding/decoding
9167346	Object-oriented audio streaming system
9167344	Spectrally uncolored optimal crosstalk cancellation for audio through loudspeakers
9167057	Dual-mode encoder, system including same, and method for generating infra-red signals
9165546	Recording and playback device capable of repeated playback, computer-readable storage medium, and recording and playback method
9165182	Method and apparatus for using face detection information to improve speaker segmentation
9161152	Multidimensional virtual learning system and method
9161151	Manipulating spatial processing in an audio system
9161150	Audio rendering device and audio rendering method
9161149	Three-dimensional sound compression and over-the-air transmission during a call
9161148	Signal processing apparatus and method for providing 3D sound effect
9161147	Apparatus and method for calculating driving coefficients for loudspeakers of a loudspeaker arrangement for an audio signal associated with a virtual source
9161145	System and method for faster response time in stereo/mono detection
9161132	Audio processing apparatus with selection to and from multi-room mode
9161129	Arranging an audio signal based on the number of loudspeakers
9154898	System and method for improving sound image localization through cross-placement
9154897	Immersive audio rendering system
9154896	Audio spatialization and environment simulation
9154895	Apparatus of generating multi-channel sound signal
9154880	Apparatus and a method for controlling a sound field
9154878	Interconnected speaker system
9154877	Collaborative sound system
9148740	Method and apparatus for reproducing stereophonic sound
9143880	Systems and methods for providing audio to a user based on gaze input
9143879	Directional audio array apparatus and system
9143878	Method and system for headset with automatic source detection and volume control
9143864	Audio playback system
9143770	Application programming interface supporting mixed two and three dimensional displays
9143107	System and method for dynamically mixing audio signals
9143104	Audio signal processing circuit, car audio apparatus using the same, audio component apparatus, electronic device and output audio signal generating method
9141645	User interfaces for controlling and manipulating groupings in a multi-zone media system
9137619	Audio signal correction and calibration for a room environment
9137618	Multi-dimensional processor and multi-dimensional audio processor system
9137617	Correlation parameter transmitting in an encoding apparatus and decoding apparatus
9137604	Audio processing apparatus
9137603	Spatial audio
9134167	Acoustic apparatus
9131326	Audio signal processing
9131305	Configurable three-dimensional sound system
9131298	Constrained dynamic amplitude panning in collaborative sound systems
9130527	Method and system for controlling distortion in a critical frequency band of an audio signal
9124996	Apparatus and method for reproducing a sound field with a loudspeaker array controlled via a control volume
9124983	Method and apparatus for localization of streaming sources in hearing assistance system
9124966	Image generation for collaborative sound systems
9124885	Operating system supporting mixed 2D, stereoscopic 3D and multi-view 3D displays
9119012	Loudspeaker beamforming for personal audio focal points
9119011	Upmixing object based audio
9119002	Equalization of an audio signal
9118999	Equalization of speaker arrays
9118991	Reducing head-related transfer function data volume
9113281	Reconstruction of a recorded sound field
9113280	Method and apparatus for reproducing three-dimensional sound
9113259	Tunable multichannel headphone and method for assembling the same
9113034	Method and apparatus for processing audio in video communication
9112591	Apparatus for encoding/decoding multichannel signal and method thereof
9111529	Method for encoding/decoding an improved stereo digital stream and associated encoding/decoding device
9111528	Matrix decoder for surround sound
9110366	Audiovisual apparatus
9107023	N surround
9107021	Audio spatialization using reflective room model
9107020	System and method for wireless microphone apparent positioning
9107019	Signal processing apparatus and method for providing spatial impression
9107018	System and method for sound reproduction
9106993	Sound processing apparatus
9100768	Method and device for decoding an audio soundfield representation for audio playback
9100767	Converter and method for converting an audio signal
9100765	Audio enhancement module for portable media player
9100749	System and method for directionally radiating sound
9100745	Modular audio devices configured to emit differing sound profiles and related methods
9100633	Electronic device generating stereo sound synchronized with stereographic moving picture
9100039	System, medium, and method of encoding/decoding multi-channel audio signals
9099075	Standing wave attenuation device
9094771	Method and system for upmixing audio to generate 3D audio
9094768	Loudspeaker calibration using multiple wireless microphones
9094754	Reduction of spurious uncorrelation in FM radio noise
9093968	Sound reproducing apparatus, sound reproducing method, and recording medium
9093056	Audio separation system and method
9088858	Immersive audio rendering system
9088857	Audio apparatus, control method for the audio apparatus, and storage medium for determining sudden noise
9088856	Networked sound masking system with centralized sound masking generation
9088855	Vector-space methods for primary-ambient decomposition of stereo audio signals
9088854	Acoustic control apparatus
9088723	Server, client terminal, and program
9088406	Frame sync across multiple channels
9087511	Method, medium, and system for generating a stereo signal
9084070	System and method for automatic selection of audio configuration settings
9084069	Audio signal processing device, audio signal processing method, and program
9084068	Sensor-based placement of sound in video recording
9084058	Sound field calibration using listener localization
9084038	Method of controlling audio recording and electronic device
9082395	Advanced stereo coding based on a combination of adaptively selectable left/right or mid/side stereo coding and of parametric stereo coding
9078077	Estimation of synthetic audio prototypes with frequency-based input signal decomposition
9078076	Sound system
9078055	Localization of a wireless user equipment (UE) device based on single beep per channel signatures
9077783	Sound data transmitting apparatus, sound data transmitting method, sound data receiving apparatus, and sound data receiving apparatus
9075127	Head tracking system
9071920	Binaural decoder to output spatial stereo sound and a decoding method thereof
9071919	Apparatus and method for encoding and decoding spatial parameter
9071215	Audio signal processing device, method, program, and recording medium for processing audio signal to be reproduced by plurality of speakers
9071214	Audio signal controller
9070370	Technique for suppressing particular audio component
9067134	Video game processing apparatus and video game processing program product
9066191	Apparatus and method for generating filter characteristics
9066182	Audio processing apparatus
9066178	Audio processing apparatus
9066173	Method for producing optimum sound field of loudspeaker
9066092	Communication infrastructure including simultaneous video pathways for multi-viewer support
9065411	Adaptive sound field control
9065410	Automatic audio equalization using handheld mode detection
9064488	Stereo encoding method, stereo encoding device, and encoder
9060236	Apparatus for providing an upmix signal representation on the basis of a downmix signal representation, apparatus for providing a bitstream representing a multi-channel audio signal, methods, computer program and bitstream using a distortion control signaling
9055383	Multi channel bass management
9055382	Calibration of headphones to improve accuracy of recorded audio content
9055381	Multi-way analysis for audio processing
9055375	Gaming system and method for dynamic noise suppression
9055157	Sound control apparatus, program, and control method
9053701	Channel signal generation device, acoustic signal encoding device, acoustic signal decoding device, acoustic signal encoding method, and acoustic signal decoding method
9042565	Spatial audio encoding and reproduction of diffuse sound
9042557	Method and apparatus for reproducing three-dimensional sound field
9015051	Reconstruction of audio channels with direction parameters indicating direction of origin
9002716	Method for describing the composition of audio signals
8964284	Banded semiconductor optical amplifier
8934646	Audio mixer
8891775	Method and encoder for processing a digital stereo audio signal
8886548	Audio encoding device, decoding device, method, circuit, and program
8885442	Method for determining an acoustic property of an environment
8798276	Method and apparatus for encoding multi-channel audio signal and method and apparatus for decoding multi-channel audio signal
8793125	Method and device for decorrelation and upmixing of audio channels
8761419	System for selecting speaker locations in an audio system
8755542	System for selecting correction factors for an audio system
8754925	Audio source locator and tracker, a method of directing a camera to view an audio source and a video conferencing terminal
8737626	Audio signal decoding device and method of balance adjustment
8670576	Method and an apparatus for processing an audio signal
8660272	Parameter setting method and audio apparatus
8654994	Method and an apparatus for processing an audio signal
8630426	Howling suppression using echo cancellation
8619998	Spatial audio enhancement processing method and apparatus
8484021	Apparatus for encoding/decoding multichannel signal and method thereof
8428269	Head related transfer function (HRTF) enhancement for improved vertical-polar localization in spatial audio systems
8233353	Multi-sensor sound source localization
8059824	Joint sound synthesis and spatialization
8045736	Sound field reproduction system
7912225	Generating 3D audio using a regularized HRTF/HRIR filter
7783059	Acoustic device
7701966	Method and apparatus for ensuring compatibility on a high performance serial bus
7471448	Surface phonon-polariton raman laser
7212333	Optical node
7199920	Two stage optical amplifier
7050453	Method and apparatus for ensuring compatibility on a high performance serial bus
6961632	Signal processing apparatus
6961439	Method and apparatus for producing spatialized audio signals
6959096	Sound reproduction system
6956954	Surround-sound processing system
6954538	Remote control apparatus and a receiver and an audio system
6954534	Multiple signal carrier transmission apparatus and method
6952174	Serial data interface
6950524	Optimal source distribution
6947569	Audio signal processing device, interface circuit device for angular velocity sensor and signal processing device
6944309	Headphone system
6937734	Mute apparatus and mute method
6937733	Audio system with a phase adjustment circuit
6934651	Method for synchronizing signals acquired from unsynchronized sensors
6934395	Surround sound field reproduction system and surround sound field reproduction method
6931370	System and method for providing interactive audio in a multi-channel audio environment
6931291	Method and apparatus for frequency-domain downmixing with block-switch forcing for audio decoding functions
6928179	Audio processing apparatus
6928172	Automatic sound field correcting system
6928169	Audio signal processing
6928168	Transparent stereo widening algorithm for loudspeakers
6925186	Ambient sound audio system
6925184	Method for converting two-channel audio system into multichannel audio system and an audio processor thereof
6920223	Method for deriving at least three audio signals from two input audio signals
6917915	Memory sharing scheme in audio post-processing
6917686	Environmental reverberation processor
6914990	Volume adjusting apparatus, method and computer program product
6914988	Audio reproducing device
6912500	Facilitation of speech recognition in user interface
6909924	Method and apparatus for shifting pitch of acoustic signals
6909041	Sound field control method and sound field control system
6904152	Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics in three dimensions
6901148	Automatic sound field correcting device
6889085	Method and system for forming an acoustic signal from neural timing difference data
6883124	Adaptable transducer interface
6882731	Multi-channel audio converter
6879864	Dual-bar audio level meter for digital audio with dynamic range control
6870935	Volume stability control for partitioned audio system
6870933	Stereo audio processing device for deriving auxiliary audio signals, such as direction sensing and center signals
6862356	Audio device
6859417	Range finding audio system
6856688	Method and system for automatic reconfiguration of a multi-dimension sound system
6853869	Method and apparatus for generating surround-sound data
6853732	Center channel enhancement of virtual sound images
6850622	Sound field correction circuit
6850621	Three-dimensional sound reproducing apparatus and a three-dimensional sound reproduction method
6845163	Microphone array for preserving soundfield perceptual cues
6842524	Method for localizing sound image of reproducing sound of audio signals for stereophonic reproduction outside speakers
6839676	Audio-decoder apparatus using a common circuit substrate for a plurality of channel models
6839442	Audio signal processing apparatus
6839438	Positional audio rendering
6831911	System and method for receiving and processing GPS and wireless signals
6831657	Display control apparatus for displaying gain setting value in predetermined color hue
6829361	Headphones with integrated microphones
6829359	Multispeaker sound imaging system
6829017	Specifying a point of origin of a sound for audio effects using displayed visual information from a motion picture
6826282	Music spatialisation system and method
6822996	Mount having high mechanical stiffness and tunable external cavity laser assembly including same
6816597	Pseudo stereophonic device
6804566	Method for continuously controlling the quality of distributed digital sounds
6804565	Data-driven software architecture for digital sound processing and equalization
6804361	Sound signal playback machine and method thereof
6804358	Sound image localizing processor
6801628	System and method for adjusting frequency response characteristics of a speaker based upon placement near a wall or other acoustically-reflective surface
6801627	Method for localization of an acoustic image out of man's head in hearing a reproduced sound via a headphone
6798889	Method and apparatus for multi-channel sound system calibration
6795556	Method of modifying one or more original head related transfer functions
6792119	Audio system
6788789	Phase conversion surround circuitry
6785391	Apparatus and method for simultaneous estimation of transfer characteristics of multiple linear transmission paths
6782111	Multiple voicecoil and driver transducing
6781977	Wideband CDMA mobile equipment for transmitting multichannel sounds
6781933	Pseudo multi-channel stereo play-back
6774820	Matrix improvements to lossless encoding and decoding
6772127	Method and apparatus for accommodating primary content audio and secondary content remaining audio capability in the digital audio production process
6771778	Method and signal processing device for converting stereo signals for headphone listening
6771777	Process for coding and decoding stereophonic spectral values
6768798	Method of customizing HRTF to improve the audio experience through a series of test sounds
6766028	Headtracked processing for headtracked playback of audio signals
6765802	Audio sound quality enhancement apparatus
6763275	METHOD FOR PROCESSING AND REPRODUCING AUDIO SIGNAL AT DESIRED SOUND QUALITY, REDUCED DATA VOLUME OR ADJUSTED OUTPUT LEVEL, APPARATUS FOR PROCESSING AUDIO SIGNAL WITH SOUND QUALITY CONTROL INFORMATION OR TEST TONE SIGNAL OR AT REDUCED DATA VOLUME, RECORDING MEDIUM FOR RECORDING AUDIO SIGNAL WITH SOUND QUALITY CONTROL INFORMATION OR TEST TONE SIGNAL OR AT REDUCED DATA VOLUME, AND APPARATUS FOR REPRODUCING AUDIO SIGNAL AT DESIRED SOUND QUALITY, REDUCED DATA VOLUME OR ADJUSTED OUTPUT LEVEL
6763115	Processing method for localization of acoustic image for audio signals for the left and right ears
6760451	Compensating filters
6760448	Compatible matrix-encoded surround-sound channels in a discrete digital sound format
6760447	Sound recording and reproduction systems
6760446	Point source speaker system
6760050	Virtual three-dimensional sound pattern generator and method and medium thereof
6757398	System and method for sensing a sound system
6754352	Sound field production apparatus
6754350	Surround reproducing circuit
6751322	Acoustic modeling system and method using pre-computed data structures for beam tracing and path generation
6747920	Information reproduction apparatus and information reproduction
6747678	Audio system, its control method and storage medium
6744487	Producing a soundtrack for moving picture sequences
6741965	Differential stereo using two coding techniques
6741961	Low power audio processor that multiplexes component distribution signals
6741711	Method of synthesizing an approximate impulse response function
6741706	Audio signal processing method and apparatus
6741273	Video camera controlled surround sound
6738479	Method of audio signal processing for a loudspeaker located close to an ear
6735314	Expanded stereophonic circuit with tonal compensation
6731759	Audio signal reproduction device
6725111	METHOD FOR PROCESSING AND REPRODUCING AUDIO SIGNAL AT DESIRED SOUND QUALITY, REDUCED DATA VOLUME OR ADJUSTED OUTPUT LEVEL, APPARATUS FOR PROCESSING AUDIO SIGNAL WITH SOUND QUALITY CONTROL INFORMATION OR TEST TONE SIGNAL OR AT REDUCED DATA VOLUME, RECORDING MEDIUM FOR RECORDING AUDIO SIGNAL WITH SOUND QUALITY CONTROL INFORMATION OR TEST TONE SIGNAL OR AT REDUCED DATA VOLUME, AND APPARATUS FOR REPRODUCING AUDIO SIGNAL AT DESIRED SOUND QUALITY, REDUCED DATA VOLUME OR ADJUSTED OUTPUT LEVEL
6721425	Sound signal mixing
6718042	Dithered binaural system
6718039	Acoustic correction apparatus
6714825	Multi-channel audio reproducing device
6714652	Dynamic decorrelator for audio signals
6711270	Audio reproducing apparatus
6711266	Surround sound channel encoding and decoding
6711265	Centralizing of a spatially expanded stereophonic audio image
6707918	Formulation of complex room impulse responses from 3-D audio information
6700980	Method and device for synthesizing a virtual sound source
6697491	5-2-5 matrix encoder and decoder system
6694033	Reproduction of spatialized audio
6694027	Discrete multi-channel/5-2-5 matrix system
6690799	Stereo signal processing apparatus
6687378	Vehicle-mounted acoustic system
6684060	Digital wireless premises audio system and method of operation thereof
6683962	Method and system for driving speakers with a 90 degree phase shift
6683959	Stereophonic device and stereophonic method
6681018	Audio signal processor and audio device
6677951	Entertainment apparatus having compatibility and computer system
6673995	Musical signal processing apparatus
6668061	Crosstalk canceler
6661737	Acoustic logging tool having programmable source waveforms
6658310	Method of entering audio signal, method of transmitting audio signal, audio signal transmitting apparatus, and audio signal receiving and reproducing apparatus
6658117	Sound field effect control apparatus and method
6647119	Spacialization of audio with visual cues
6643674	Digital filtering method and device and sound image localizing device
6643503	Wireless speaker for radio communication device
6643377	Audio output system and method therefor
6643375	Method of processing a plural channel audio signal
6639989	Method for loudness calibration of a multichannel sound systems and a multichannel sound system
6636608	Pseudo-stereo circuit
6631193	Audio system enhancement using psycho acoustic matrix
6629078	Apparatus and method of coding a mono signal and stereo information
6628787	Wavelet conversion of 3-D audio signals
6625286	Precise amplitude correction circuit
6624873	Matrix-encoded surround-sound channels in a discrete digital sound format
6621906	Sound field generation system
6614912	Sound reproducing device, earphone device and signal processing device therefor
6614910	Stereo sound expander
6614365	Coding device and method, decoding device and method, and recording medium
6611212	Matrix improvements to lossless encoding and decoding
6608907	Audio output apparatus having wireless speakers
6608903	Sound field reproducing method and apparatus for the same
6608902	Stereo signal separation circuit and application thereof
6606388	Method and system for enhancing audio signals
6597791	Audio enhancement system
6594368	DVE system with dynamic range processing
6593809	Circuit for widening the stereobase in the reproduction of stereophonic sound signals
6591241	Selecting a coupling scheme for each subband for estimation of coupling parameters in a transform coder for high quality audio
6590983	Apparatus and method for synthesizing pseudo-stereophonic outputs from a monophonic input
6590982	Wireless stereo center speaker system
6590510	Sample rate converter
6588867	Reciprocal index lookup for BTSC compatible coefficients
6587566	Sound field forming circuit and sound field forming apparatus
6587565	System for improving a spatial effect of stereo sound or encoded sound
6584357	Method and system for forming an acoustic signal from neural timing difference data
6578203	Audio/video signal distribution system for head mounted displays
6577738	Parametric virtual speaker and surround-sound system
6577736	Method of synthesizing a three dimensional sound-field
6574602	Dual channel phase flag determination for coupling bands in a transform coder for high quality audio
6574339	Three-dimensional sound reproducing apparatus for multiple listeners and method thereof
6560497	METHOD FOR PROCESSING AND REPRODUCING AUDIO SIGNAL AT DESIRED SOUND QUALITY, REDUCED DATA VOLUME OR ADJUSTED OUTPUT LEVEL, APPARATUS FOR PROCESSING AUDIO SIGNAL WITH SOUND QUALITY CONTROL INFORMATION OR TEST TONE SIGNAL OR AT REDUCED DATA VOLUME, RECORDING MEDIUM FOR RECORDING AUDIO SIGNAL WITH SOUND QUALITY CONTROL INFORMATION OR TEST TONE SIGNAL OR AT REDUCED DATA VOLUME, AND APPARATUS FOR REPRODUCING AUDIO SIGNAL AT DESIRED SOUND QUALITY, REDUCED DATA VOLUME OR ADJUSTED OUTPUT LEVEL
6553121	Three-dimensional acoustic processor which uses linear predictive coefficients
6539357	Technique for parametric coding of a signal containing information
6535611	Method and apparatus for reducing switching noise of a digital volume control
6535608	Stereo broadcasting receiving device
6532291	Head tracking with limited angle output
6529787	Multimedia computer speaker system with bridge-coupled subwoofer
6523006	Three dimensional audio vision
6522751	Stereophonic signal processing apparatus
6522750	Method and corresponding system for influencing the stereo channel separation of an audiosignal
6519344	Audio system
6507658	Surround sound panner
6507657	Stereophonic sound image enhancement apparatus and stereophonic sound image enhancement method
6504934	Apparatus and method for localizing sound image
6504933	Three-dimensional sound system and method using head related transfer function
6501843	Automotive audio reproducing apparatus
6501717	Apparatus and method for processing digital audio signals of plural channels to derive combined signals with overflow prevented
6498857	Method of synthesizing an audio signal
6498856	Vehicle-carried sound reproduction apparatus
6498852	Automatic LFE audio signal derivation system
6496584	Multi-channel stereo converter for deriving a stereo surround and/or audio center signal
6487572	Digital filtering method and device and sound image localizing device
6487535	Multi-channel audio encoder
6483925	Headphone having several speakers
6483428	Removable front panel for an entertainment device
6479742	Audio system in electronic musical instrument
6477255	Audio system
6470087	Device for reproducing multi-channel audio by using two speakers and method therefor
6466913	Method of determining a sound localization filter and a sound localization control system incorporating the filter
6459797	Audio mixer
6449371	PC surround sound mixer
6449368	Multidirectional audio decoding
6445798	Method of generating three-dimensional sound
6442277	Method and apparatus for loudspeaker presentation for positional 3D sound
6438434	Mixing, coding and decoding devices and methods
6434242	Audio signal mixer for long mix editing
6430535	Method and device for projecting sound sources onto loudspeakers
6430353	Audio and video reproducing apparatus having independent control of selected signals
6430294	Sound image localization method and apparatus, delay amount control apparatus, and sound image control apparatus with using delay amount control apparatus
6430293	Recording and play-back two-channel system for providing a holophonic reproduction of sounds
6430217	Noise eliminated digital wireless transceiver apparatus
6424719	Acoustic crosstalk cancellation system
6421447	Method of generating surround sound with channels processing separately
6421446	Apparatus for creating 3D audio imaging over headphones using binaural synthesis including elevation
6418226	Method of positioning sound image with distance adjustment
6408327	Synthetic stereo conferencing over LAN/WAN
6389139	Powered volume control for distributed audio system
6385320	Surround signal processing apparatus and method
6381333	Sound processing circuit
6377862	Method for processing and reproducing audio signal
6370256	Time processed head related transfer functions in a headphone spatialization system
6366679	Multi-channel sound transmission method
6360200	Process for reducing redundancy during the coding of multichannel signals and device for decoding redundancy-reduced multichannel signals
6356211	Encoding method and apparatus and recording medium
6351733	Method and apparatus for accommodating primary content audio and secondary content remaining audio capability in the digital audio production process
6349285	Audio bass management methods and circuits and systems using the same
6345125	Multiple description transform coding using optimal transforms of arbitrary dimension
6341166	Automatic correction of power spectral balance in audio source material
6341165	Coding and decoding of audio signals by using intensity stereo and prediction processes
6332026	Bass management system for home theater equipment
6330370	Multiple description transform coding of images using optimal transforms of arbitrary dimension
6321869	Speaker system for personal computers
6317503	Multi-mode LED indicator for recording services
6307941	System and method for localization of virtual sound
6301365	Audio signal mixer for long mix editing
6295324	Signal quality measurement using full-complex FM detector
6292570	Surround sound
6285767	Low-frequency audio enhancement system
6285766	Apparatus for localization of sound image
6278784	Intermittent errors in digital disc players
6275593	Apparatus and methods for the harmonic enhancement of electronic audio signals
6275589	Method and apparatus for error masking in multi-channel audio signals
6271771	Hearing-adapted quality assessment of audio signals
6269166	Three-dimensional acoustic processor which uses linear predictive coefficients
6259795	Methods and apparatus for processing spatialized audio
6259793	Sound reproduction method, sound reproduction apparatus, sound data creation method, and sound data creation apparatus
6253185	Multiple description transform coding of audio using optimal transforms of arbitrary dimension
6246773	Audio signal processors
6243476	Method and apparatus for producing binaural audio for a moving listener
6240189	Generating a common bass signal
6236730	Full sound enhancement using multi-input sound signals
6229899	Method and device for developing a virtual speaker distant from the sound source
6222930	Method of reproducing sound
6222927	Binaural signal processing system and method
6215879	Method for introducing harmonics into an audio stream for improving three dimensional audio positioning
6198826	Qsound surround synthesis from stereo
6195435	Method and system for channel balancing and room tuning for a multichannel audio surround sound speaker system
6195434	Apparatus for creating 3D audio imaging over headphones using binaural synthesis
6188769	Environmental reverberation processor
6181800	System and method for interactive approximation of a head transfer function
6178247	Headphone apparatus
6178245	Audio signal generator to emulate three-dimensional audio signals
6175631	Method and apparatus for decorrelating audio signals
6169812	Point source speaker system
6169806	Computer, computer system and desk-top theater system
6167140	AV Amplifier
6167139	Apparatus and method for controlling sound for audio/video appliance
6157725	Sound system for a motor vehicle and method for defining a functional scope of a sound system
6154553	Sound bubble structures for sound reproducing arrays
6154549	Method and apparatus for providing sound in a spatial environment
6154545	Method and apparatus for two channels of sound having directional cues
6154161	Integrated audio mixer
6153994	Control console
6148243	Sound Processing method and system
6144747	Head mounted surround sound system
6141646	Digital sound processor for processing multiple standard sound signals and capable of generating additional audio signals
6130948	Sound field processor with sound field expanding apparatus
6129283	Information reproduction apparatus for optically reading a code pattern from a recording medium and outputting desired information pieces of the read code pattern
6122382	System for processing audio surround signal
6122381	Stereophonic sound system
6118876	Surround sound speaker system for improved spatial effects
6118875	Binaural synthesis, head-related transfer functions, and uses thereof
6118821	Compressed code decoding device and audio decoding device
6118394	Circuit for obtaining an output signal having distributed frequencies around a frequency of an input signal
6111959	Sound spreader
6111958	Audio spatial enhancement apparatus and methods
6108584	Multichannel digital audio decoding method and apparatus
6108430	Headphone apparatus
6108427	Method and apparatus for eliminating audio feedback
6094638	Audio signal processing apparatus and audio signal processing method for multi channel audio reproduction system
6094488	Dynamic computation of the ratio between two bitstreams representing slowly varying quantities and Dolby Pro Logic decoder
6091894	Virtual sound source positioning apparatus
6091826	Method for implementing a sound reproduction system for a large space, and a sound reproduction system
6084970	Mono-stereo conversion device, an audio reproduction system using such a device and a mono-stereo conversion method
6078669	Audio spatial localization apparatus and methods
6075868	Apparatus for the creation of a desirable acoustical virtual reality
6072879	Sound field control unit and sound field control device
6072878	Multi-channel surround sound mastering and reproduction techniques that preserve spatial harmonics
6072877	Three-dimensional virtual audio display employing reduced complexity imaging filters
6069962	Point source speaker system
6067361	Method and apparatus for two channels of sound having directional cues
6067360	Apparatus for localizing a sound image and a method for localizing the same
6067072	Audio equipment and method of displaying operating thereof
6052470	System for processing audio surround signal
6044307	Method of entering audio signal, method of transmitting audio signal, audio signal transmitting apparatus, and audio signal receiving and reproducing apparatus
6041225	Monitor control circuit using wireless headphones and method therefor
6035045	Sound image localization method and apparatus, delay amount control apparatus, and sound image control apparatus with using delay amount control apparatus
6026169	Sound image localization device
6023514	System and method for factoring a merged wave field into independent components
6023512	Three-dimensional acoustic processor which uses linear predictive coefficients
6023490	Encoding apparatus for encoding a plurality of information signals
6021386	Coding method and apparatus for multiple channels of audio information representing three-dimensional sound fields
6021206	Methods and apparatus for processing spatialised audio
6021205	Headphone device
6016473	Low bit-rate spatial coding method and system
6016295	Audio system which not only enables the application of the surround sytem standard to special playback uses but also easily maintains compatibility with a surround system
6011851	Spatial audio processing method and apparatus for context switching between telephony applications
6009179	Method and apparatus for electronically embedding directional cues in two channels of sound
6005949	Surround sound effect control device
6005948	Audio channel mixing
6005947	Technique for enhancing stereo sound
6005946	Method and apparatus for generating a multi-channel signal from a mono signal
6002775	Method and apparatus for electronically embedding directional cues in two channels of sound
6002774	Arrangement, a system, a circuit and a method for enhancing a stereo image
5999630	Sound image and sound field controlling device
5995631	Sound image localization apparatus, stereophonic sound image enhancement apparatus, and sound image control system
5987142	System of sound spatialization and method personalization for the implementation thereof
5987141	Stereo expander
5982903	Method for construction of transfer function table for virtual sound localization, memory with the transfer function table recorded therein, and acoustic signal editing scheme using the transfer function table
5982902	System for generating atmospheric quasi-sound for audio performance
5978762	Digitally encoded machine readable storage media using adaptive bit allocation in frequency, time and over multiple channels
5978487	Spectrum displaying device for audio device
5974383	Configuring an audio mixer in an audio interface
5974380	Multi-channel audio decoder
5974153	Method and system for sound expansion
5974152	Sound image localization control device
5970152	Audio enhancement system for use in a surround sound environment
5960037	Encoding of a plurality of information signals
5959597	Image/audio reproducing system
5956674	Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels
5951646	System and method for scheduling and processing image and sound data
5949894	Adaptive audio systems and sound reproduction systems
5948052	Apparatus using a logarithm based processor and an audio amplifier
5946400	Three-dimensional sound processing system
5943427	Method and apparatus for three dimensional audio spatialization
5940518	Method and apparatus for indicating speaker faults
5937071	Sound field expanding apparatus with improved tone control system
5930733	Stereophonic image enhancement devices and methods using lookup tables
5930370	In-home theater surround sound speaker system
5926553	Method for measuring the conservation of stereophonic audio signals and method for identifying jointly coded stereophonic audio signals
5926332	Digital sound reproducing and editing device for recording sound with fixed editing points
5920632	Apparatus for continuously switching a demodulator from stereo operation to mono operation, and vice versa
5917916	Audio reproduction systems
5915028	Amplitude demodulator
5912976	Multi-channel audio enhancement system for use in recording and playback and methods for providing same
5912975	Method and circuit for creating phantom sources using phase shifting circuitry
5910990	Apparatus and method for automatic equalization of personal multi-channel audio system
5909664	Method and apparatus for encoding and decoding audio information representing three-dimensional sound fields
5907827	Channel synchronized audio data compression and decompression for an in-flight entertainment system
5903853	Radio transceiver including noise suppressor
5896457	Light enhanced sound device and method
5896456	Automatic stereophonic manipulation system and apparatus for image enhancement
5896358	Audio system which not only enables the application of the surround system standard to special playback uses but also easily maintains compatibility with a surround system
5896215	Multi-channel system with multiple information sources
5892831	Method and circuit for creating an expanded stereo image using phase shifting circuitry
5892830	Stereo enhancement system
5889870	Acoustic heterodyne device and method
5889867	Stereophonic Reformatter
5883962	Method and apparatus for spatially enhancing stereo and monophonic signals
5878145	Electronic circuit and process for creation of three-dimensional audio effects and corresponding sound recording
5873065	Two-stage compression and expansion of coupling processed multi-channel sound signals for transmission and recording
5872851	Dynamic stereophonic enchancement signal processing system
5870480	Multichannel active matrix encoder and decoder with maximum lateral separation
5862230	Method to reduce perceived sound leakage between auditoriums in multiplex theaters
5862229	Sound generator synchronized with image display
5862228	Audio matrix encoding
5862227	Sound recording and reproduction systems
5860060	Method for left/right channel self-alignment
5857026	Space-mapping sound system
5854843	Virtual navigator, and inertial angular measurement system
5850455	Discrete dynamic positioning of audio signals in a 360.degree. environment
5850454	Method and apparatus for spatially enhancing stereo and monophonic signals
5850453	Acoustic correction apparatus
5844993	Surround signal processing apparatus
5844816	Angle detection apparatus and audio reproduction apparatus using it
5841993	Surround sound system for personal computer for interfacing surround sound with personal computer
5841879	Virtually positioned head mounted surround sound system
5838800	Apparatus for enhancing stereo effect with central sound image maintenance circuit
5835093	Audio equipment and method of displaying operation thereof
5822440	Enhanced concert audio process utilizing a synchronized headgear system
5822437	Signal modification circuit
5818943	Transmission and reception of a first and a second main signal component
5818941	Configurable cinema sound system
5818418	Audio equipment and method of displaying operation thereof
5815580	Compensating filters
5812677	Acoustic signal processing method and apparatus
5812676	Near-field reproduction of binaurally encoded signals
5812675	Sound reproducing array processor system
5812674	Method to simulate the acoustical quality of a room and associated audio-digital processor
5812672	Method for reducing data in the transmission and/or storage of digital signals of several dependent channels
5811707	Effect adding system
5809153	Electroacoustical transducing
5809149	Apparatus for creating 3D audio imaging over headphones using binaural synthesis
5808923	Denormalization device and method for multichannel audio decoder
5802194	Stereo loudspeaker system with tweeters mounted on rotatable enlongated arms
5802182	Audio process distortion
5802181	Theater sound system with upper surround channels
5802180	Method and apparatus for efficient presentation of high-quality three-dimensional audio including ambient effects
5799094	Surround signal processing apparatus and video and audio signal reproducing apparatus
5798922	Method and apparatus for electronically embedding directional cues in two channels of sound for interactive applications
5798818	Configurable cinema sound system
5796845	Sound field and sound image control apparatus and method
5796844	Multichannel active matrix sound reproduction with maximum lateral separation
5796843	Video signal and audio signal reproducing apparatus
5784467	Method and apparatus for reproducing three-dimensional virtual space sound
5778082	Method and apparatus for localization of an acoustic source
5774864	Composite dynamic-crosstalk/phantom-center decoder for MPEG-2 multichannel audio
5774567	Audio codec with digital level adjustment and flexible channel assignment
5774559	Method and apparatus for determining perceived roughness of powertrain sounds
5774558	Sound imager
5774556	Stereo enhancement system including sound localization filters
5774016	Amplifier system having prioritized connections between inputs and outputs
5771295	5-2-5 matrix system
5771294	Acoustic image localization apparatus for distributing tone color groups throughout sound field
5771041	System for producing directional sound in computer based virtual environment
5768394	Surround audio signal reproducing apparatus having a sub-woofer signal mixing function
5768393	Three-dimensional sound system
5767739	Digital demodulator for quadrature amplitude and phase modulated signals
5764777	Four dimensional acoustical audio system
5761537	Method and apparatus for integrating three dimensional sound into a computer system having a stereo audio circuit
5761434	Digital audio system including a software controlled phase lock loop for synchronizing audio sources to a common clock source
5761315	Surround signal processing apparatus
5761314	Audio reproducing apparatus and headphone
5761313	Circuit for improving the stereo image separation of a stereo signal
5761295	Telephone instrument and method for altering audible characteristics
5757939	Method for demonstrating sound quality differences between audio samples
5757927	Surround sound apparatus
5754874	Digital signal processor with selective sound operation
5754660	Sound generator synchronized with image display
5751819	Level meter for digitally-encoded audio
5751817	Simplified analog virtual externalization for stereophonic audio
5751815	Apparatus for audio signal stereophonic adjustment
5748746	Ceiling speaker and signal source
5748745	Analog vector processor and method for producing a binaural signal
5745584	Sound bubble structures for sound reproducing arrays
5742689	Method and device for processing a multichannel signal for use with a headphone
5742687	Signal processing circuit including a signal combining circuit stereophonic audio reproduction system including the signal processing circuit and an audio-visual reproduction system including the stereophonic audio reproduction system
5740253	Sterophonic sound field expansion device
5737427	Surround sound processor unit
5736943	Method for determining the type of coding to be selected for coding at least two signals
5734724	Audio communication control unit
5732142	Musical sound reproduction controller with two-stage adjustment of tone
5729613	Reverberators for use in wide band assisted reverberation systems
5727075	Multipoint communication apparatus with reduced number of audio decoders
5727068	Matrix decoding method and apparatus
5727067	Sound field control device
5727066	Sound Reproduction systems
5724429	System and method for enhancing the spatial effect of sound produced by a sound system
5719944	System and method for creating a doppler effect
5717767	Angle detection apparatus and audio reproduction apparatus using it
5717766	Stereophonic sound reproduction apparatus using a plurality of loudspeakers in each channel
5717765	Theater sound system with upper surround channels
5717764	Global masking thresholding for use in perceptual coding
5717763	Vocal mix circuit
5717670	Information compacting method and apparatus, compacted information expanding method and apparatus, compacted information recording/transmitting apparatus, compacted information receiving apparatus and recording medium
5717534	Digital sound reproducing and editing device with variable-speed continuous sound reproduction
5715318	Audio signal processing
5715317	Apparatus for controlling localization of a sound image
5710818	Apparatus for expanding and controlling sound fields
5708719	In-home theater surround sound speaker system
5708718	Surround sound processor system
5703999	Process for reducing data in the transmission and/or storage of digital signals from several interdependent channels
5703956	External memory control circuit for sound field processing digital signal processor
5703955	Method and apparatus for multichannel sound reproduction
5703953	Monaural signal judgement circuit
5701346	Method of coding a plurality of audio signals
5701344	Audio processing apparatus
5696834	Stereo system and stereo method for electronic acoustical system
5696831	Audio reproducing apparatus corresponding to picture
5692050	Method and apparatus for spatially enhancing stereo and monophonic signals
5689570	Sound reproducing array processor system
5687239	Audio reproduction apparatus
5684881	Sound field and sound image control apparatus and method
5682433	Audio signal processor for simulating the notional sound source
5680464	Sound field controlling device
5671287	Stereophonic signal processor
5671286	Strategy for controlling FM stereo separation and frequency response in noisy reception environments
5666425	Plural-channel sound processing
5666424	Six-axis surround sound processor with automatic balancing and calibration
5666136	Audio equipment and method of displaying operation thereof
5661812	Head mounted surround sound system
5661808	Stereo enhancement system
5659619	Three-dimensional virtual audio display employing reduced complexity imaging filters
5657454	Audio decoder circuit and method of operation
5657391	Sound image enhancement apparatus
5652798	Reverberant characteristic signal generation apparatus
5644640	Surround sound processor with improved control voltage generator
5642437	System decoder circuit with temporary bit storage and method of operation
5642423	Digital surround sound processor
5642422	Digital surround sound method and apparatus
5638452	Expandable multi-dimensional sound circuit
5638451	Transmission and storage of multi-channel audio-signals when using bit rate-reducing coding methods
5638343	Method and apparatus for re-recording multi-track sound recordings for dual-channel playbacK
5636324	Apparatus and method for stereo audio encoding of digital audio signal data
5636283	Processing audio signals
5633981	Method and apparatus for adjusting dynamic range and gain in an encoder/decoder for multidimensional sound fields
5633935	Stereo ultradirectional microphone apparatus
5632005	Encoder/decoder for multidimensional sound fields
5631964	Audio apparatus
5631848	System decoder circuit and method of operation
5630175	Surround sound system for general purpose computer using dual sound cards
5627899	Compensating filters
5627535	Quantization apparatus
5625745	Noise imaging protection for multi-channel audio signals
5625696	Six-axis surround sound processor with improved matrix and cancellation control
5619582	Enhanced concert audio process utilizing a synchronized headgear system
5619220	Sound image display method and apparatus
5613035	Apparatus for adaptively encoding input digital audio signals from a plurality of channels
5613010	Apparatus for reproducing sound with a reduced dynamic range
5610986	Linear-matrix audio-imaging system and image analyzer
5610985	Digital 3-channel transmission of left and right stereo signals and a center signal
5608805	Dynamic loader
5606624	Audio apparatus demonstrating
5604809	Sound field control system
5602923	Theater sound system with upper surround channels
5602922	Method and apparatus for processing an audio signal by surround modes
5600727	Determination of position
5598478	Sound image localization control apparatus
5596645	Sound image localization control device for controlling sound image localization of plural sounds independently of each other
5596644	Method and apparatus for efficient presentation of high-quality three-dimensional audio
5596603	Device for wireless transmission of digital data, in particular of audio data, by infrared light in headphones
5594801	Ambient expansion loudspeaker system
5594800	Sound reproduction system having a matrix converter
5594494	Moving picture coding apparatus
5592588	Method and apparatus for object-oriented digital audio signal processing using a chain of sound objects
5592558	Sound reproduction device
5590949	Detachable front panel for car stereos
5590207	Sound reproducing array processor system
5590204	Device for reproducing 2-channel sound field and method therefor
5590094	System and methd for reproducing sound
5587936	Method and apparatus for creating sounds in a virtual world by simulating sound in specific locations in space and generating sounds as touch feedback
5585587	Acoustic image localization apparatus for distributing tone color groups throughout sound field
5583962	Encoder/decoder for multidimensional sound fields
5581621	Automatic adjustment system and automatic adjustment method for audio devices
5579396	Surround signal processing apparatus
5579395	Stereo decoder with cross-talk compensation
5572591	Sound field controller
5572443	Acoustic characteristic correction device
5566241	Method and apparatus for presentation of on-line directional sound
5561716	Demodulator
5557680	Loudspeaker system for producing multiple sound images within a listening area from dual source locations
5557590	Auto changer capable of recording/reproducing information signals on a selective disc-shaped recording medium
5555515	Apparatus and method for generating linearly filtered composite signal
5555310	Stereo voice transmission apparatus, stereo signal coding/decoding apparatus, echo canceler, and voice input/output apparatus to which this echo canceler is applied
5555306	Audio signal processor providing simulated source distance control
5553147	Stereophonic reproduction method and apparatus
5550924	Reduction of background noise for speech enhancement
5546465	Audio playback apparatus and method
5544249	Method of simulating a room and/or sound impression
5535300	Perceptual coding of audio signals using entropy coding and/or multiple power spectra
5530765	Depth of fade indicating LED
5530760	Apparatus and method for adjusting levels between channels of a sound system
5528694	Audio signal processing arrangement for deriving a centre channel signal and also an audio visual reproduction system comprising such a processing arrangement
5526429	Headphone apparatus having means for detecting gyration of user's head
5524054	Method for generating a multi-channel audio decoder matrix
5524053	Sound field control device
5521982	Electronic device for the generation of acoustic spatial effects
5521981	Sound positioner
5517570	Sound reproducing array processor system
5515442	Mono/stereo switching circuit
5511129	Compensating filters
5509079	Back-masking effect generator
5509017	Process for simultaneous transmission of signals from N signal sources
5506907	Channel audio signal encoding method
5504819	Surround sound processor with improved control voltage generator
5500900	Methods and apparatus for producing directional sound
5497425	Multi channel surround sound simulation device
5495534	Audio signal reproducing apparatus
5491773	Encoding system comprising a subband coder for subband coding of a wideband digital signal constituted by first and second signal components
5491754	Method and system for artificial spatialisation of digital audio signals
5488665	Multi-channel perceptual audio compression system with encoding mode switching among matrixed channels
5487113	Method and apparatus for generating audiospatial effects
5485514	Telephone instrument and method for altering audible characteristics
5479516	Loudspeaker demonstrating
5477270	Distance-adaptive microphone for video camera
5473697	Echo generating apparatus
5469511	Method and apparatus for presentation of on-line directional sound
5469508	Audio signal processor
5467401	Sound environment simulator using a computer simulation and a method of analyzing a sound space
5463424	Multi-channel transmitter/receiver system providing matrix-decoding compatible signals
5459790	Personal sound system with virtually positioned lateral speakers
5455866	Adaptive separation control for stereophonic radio receiver
5452360	Sound field control device and method for controlling a sound field
5452359	Acoustic signal reproducing apparatus
5450624	Method and apparatus for diagnosing amp to speaker connections
5450494	Automatic volume controlling apparatus
5440639	Sound localization control apparatus
5440638	Stereo enhancement system
5438623	Multi-channel spatialization system for audio signals
5436975	Apparatus for cross fading out of the head sound locations
5434924	Hearing aid employing adjustment of the intensity and the arrival time of sound by electronic or acoustic, passive devices to improve interaural perceptual balance and binaural processing
5434921	Stereo image control circuit
5432855	Stereo and dual audio signal identifying system
5430802	Audio speaker system
5428687	Control voltage generator multiplier and one-shot for integrated surround sound processor
5428184	Karaoke circuit for optical disk player
5426720	Neurocontrolled adaptive process control system
5426702	System for deriving a center channel signal from an adapted weighted combination of the left and right channels in a stereophonic audio signal
5426261	Musical tone control waveform signal generating apparatus utilizing waveform data parameters in time-division intervals
5420929	Signal processor for sound image enhancement
5418856	Stereo signal generator
5414774	Circuit and method for controlling an audio system
5412732	Stereo surround system
5412731	Automatic stereophonic manipulation system and apparatus for image enhancement
5404406	Method for controlling localization of sound image
5400433	Decoder for variable-number of channel presentation of multidimensional sound fields
5400410	Signal separator
5400405	Audio image enhancement system
5398286	System for enhancing an analog signal
5394477	Microprocessor controlled multiple channel VTR configuration of an audio follow video mixer
5394474	Echo attaching circuit and audio device using the same
5390256	Dynamic loader
5386478	Sound system remote control with acoustic sensor
5386473	Passive surround sound circuit
5386082	Method of detecting localization of acoustic image and acoustic image localizing system
5384855	Audio system for vehicular application
5384851	Method and apparatus for controlling sound localization
5381482	Sound field controller
5375188	Music/voice discriminating apparatus
5373562	Signal processor for sterophonic signals
5371799	Stereo headphone sound source localization system
5367612	Neurocontrolled adaptive process control system
5367506	Sound collecting system and sound reproducing system
5355416	Psycho acoustic pseudo-stereo fold back system
5347499	Circuit for selectively setting a monaural playback channel in a stereo audio apparatus
5347496	Method and system of mapping acoustic near field
5343534	Sequential audio switcher
5343531	Audio reproducing apparatus
5341457	Perceptual coding of audio signals
5339363	Apparatus for enhancing monophonic audio signals using phase shifters
5337363	Method for generating three dimensional sound
5333202	Multidimensional stereophonic sound reproduction system
5333201	Multi dimensional sound circuit
5333200	Head diffraction compensated stereo system with loud speaker array
5333199	Digital signal processor for simultaneously processing left and right signals
5325435	Sound field offset device
5319713	Multi dimensional sound circuit
5307418	Center channel speaker having multiple interconnected backload amplifying chambers for surround sound stereo audio systems
5307415	Surround processor with antiphase blending and panorama control circuitry
5305439	Method and apparatus for time-shared processing of different data word sequences
5305386	Apparatus for expanding and controlling sound fields
5301237	Surround sound loudspeakers
5301236	System for producing stereo-simulated signals for simulated-stereophonic sound
5297211	Acoustic device for custom installation
5297209	System for calibrating sound field
5297034	Telepathology diagnostic network
5295189	Control voltage generator for surround sound processor
5291557	Adaptive rematrixing of matrixed audio signals
5285503	Apparatus for reproducing sound field
5280528	Band pass filter circuit for rear channel filtering in a surround processor
5278909	System and method for stereo digital audio compression with co-channel steering
5274740	Decoder for variable number of channel presentation of multidimensional sound fields
5274708	Digital stereo sound enhancement unit and method
5272757	Multi-dimensional reproduction system
5272756	Method and apparatus for determining phase correlation of a stereophonic signal
5265166	Multi-channel sound simulation system
5263188	Fade compensated tone control method and apparatus
5263087	Time constant processing circuit for surround processor
5263086	Audio accessory circuit
5261757	Shaft mount for data coupler system
5261005	Sound field control device
5260920	Acoustic space reproduction method, sound recording device and sound recording medium
5257313	Surround audio apparatus
5257253	Laser vision disc with digital sound (LDD) disc player for reproducing analog audio signals mixed with digital audio signals
5255370	Data transfer apparatus and data transfer system
5255326	Interactive audio control system
5251260	Audio surround system with stereo enhancement and directivity servos
5245663	Back-masking effect generator
5241605	Tone control apparatus for front and rear channels
5241604	Sound effect apparatus
5235646	Method and apparatus for creating de-correlated audio output signals and audio recordings made thereby
5228085	Perceived sound
5222145	Dual-chamber multi-channel speaker for surround sound stereo audio systems
5222059	Surround-sound system with motion picture soundtrack timbre correction, surround sound channel timbre correction, defined loudspeaker directionality, and reduced comb-filter effects
5220608	Method and means for stereophonic sound reproduction
5216718	Method and apparatus for processing audio signals
5214705	Circuit and method for communicating digital audio information
5212733	Sound mixing device
5210796	Stereo/monaural detection apparatus
5208860	Sound imaging method and apparatus
5206910	Stereo microphone unit
5201005	Sound field compensating apparatus
5199075	Surround sound loudspeakers and processor
5197099	Multiple-channel audio reproduction apparatus
5193118	Vehicular sound reproducing
5189703	Timbre correction units for use in sound systems
5181249	Three channel audio transmission and/or reproduction systems
5181248	Acoustic signal reproducing apparatus
5181247	Sound image enhancing
5177798	Sound reproducer for high definition television
5175768	Method and apparatus for enhancing the stereo effect in headsets having cross coupling voice coils
5173944	Head related transfer function pseudo-stereophony
5172415	Surround processor
5165099	Balance control circuit
5165097	Controller for acoustic apparatus
5164840	Apparatus for supplying control codes to sound field reproduction apparatus
5161196	Apparatus and method for reducing motion sickness
5155770	Surround processor for audio signal
5153362	Electronic musical instrument having pan control function
5146507	Audio reproduction characteristics control device
5144670	Sound output system
5142586	Electro-acoustical system
5140637	Device and method for removing vocal signals
5138660	Sound imaging apparatus connected to a video game
5136651	Head diffraction compensated stereo system
5136650	Sound reproduction
5129004	Automotive multi-speaker audio system with different timing reproduction of audio sound
5128999	Sound field correcting apparatus
5125732	Motion picture exhibition facility
5123051	Sound field reproducing apparatus
5123050	Sound field control system
5121433	Apparatus and method for controlling the magnitude spectrum of acoustically combined signals
5119422	Optimal sonic separator and multi-channel forward imaging system
5119420	Device for correcting a sound field in a narrow space
5113447	Method and system for optimizing audio imaging in an automotive listening environment
5111508	Audio system for vehicular application
5109423	Audio system with amplifier and signal device
5109415	Audio signal processing system performing balance control in both amplitude and phase of audio signal
5105462	Sound imaging method and apparatus
5105412	Recording medium playing apparatus for correcting audio signals using an appropriate sound field
5095798	Electronic gaming device with pseudo-stereophonic sound generating capabilities
5095507	Method and apparatus for generating incoherent multiples of a monaural input signal for sound image placement
5083311	Sound field producing apparatus
5073945	Loudspeaker system
5073944	Audio system for automotive vehicles
5073936	Stereophonic microphone system
5068897	Mobile acoustic reproducing apparatus
5065432	Sound effect system
5056149	Monaural to stereophonic sound translation process and apparatus
5056148	Output circuit of audio device
5052685	Sound processor for video game
5050214	Remote control circuit
5046106	Varying loudspeaker spatial characteristics in a vehicle
5046098	Variable matrix decoder with three output channels
5046097	Sound imaging process
5043970	Sound system with source material and surround timbre response correction, specified front and surround loudspeaker directionality, and multi-loudspeaker surround
5042070	Automatically configured audio system
5042068	Audio spatial equalization system
5040220	Control circuit for controlling reproduced tone characteristics
5040219	Sound reproducing apparatus
5034983	Head diffraction compensated stereo system
5033577	Room sound reproducing
5033092	Stereophonic reproduction system
5033086	Stereophonic binaural recording or reproduction method
5027687	Sound field control device
5027403	Video sound
5026051	Sound imaging apparatus for a video game system
5005201	Apparatus and method thereof for improvement of stereophonic sound
5004067	Cinema sound system for unperforated screens
5001774	Stereo headphone remote control circuit
4984273	Enhancing bass
4983858	Level determining circuit generating output signal at first or second output terminal according to level of input signal
4980915	Center mode control circuit
4980914	Sound field correction system
4975954	Head diffraction compensated stereo system with optimal equalization
4968154	4-Channel surround sound generator
4965674	Recording and reproducing system with selective matrix conversion
4953219	Stereo signal reproducing system using reverb unit
4953213	Surround mode stereophonic reproducing equipment
4953212	Auto voice changing apparatus
4941177	Variable matrix decoder
4939781	Device for eliminating absolute polarity inversion in a high-fidelity sound reproduction system
4933768	Sound reproducer
4932060	Stereo electroacoustical transducing
4932059	Variable matrix decoder for periphonic reproduction of sound
4920569	Digital audio signal playback system delay
4910779	Head diffraction compensated stereo system with optimal equalization
4910778	Signal enhancement processor for stereo system
4908858	Stereo processing system
4905291	Cyberoptic audio level control system
4905284	Audio system for vehicular applications
4905283	Surround decoder
4897877	Sub-woofer driver combination with dual voice coil arrangement
4893342	Head diffraction compensated stereo system
4891839	Signal re-distribution, decoding and processing in accordance with amplitude, phase and other characteristics
4890065	Relative time delay correction system utilizing window of zero correction
4888809	Method of and arrangement for adjusting the transfer characteristic to two listening position in a space
4887045	Sum/differential signal processing circuit
4882753	Passive ambience recovery system for the reproduction of sound
4873722	Multi-channel reproducing system
4868878	Sound field correction system
4866774	Stero enhancement and directivity servo
4862502	Sound reproduction
4856065	Power fader for a loudspeaker system
4856064	Sound field control apparatus
4850021	Method and a circuit for decoding four channel signals which are coded in a matrix and available in the form of a two-channel signal
4847904	Ambient imaging loudspeaker system
4845775	Loudspeaker reproduction apparatus in vehicle
4841573	Stereophonic signal processing circuit
4841572	Stereo synthesizer
4837825	Passive ambience recovery system for the reproduction of sound
4837824	Stereophonic image widening circuit
4833715	FM stereo receiver
4831652	Stereo expansion circuit selection switch
4819269	Extended imaging split mode loudspeaker system
4817162	Binaural correlation coefficient correcting apparatus
4817149	Three-dimensional auditory display apparatus and method utilizing enhanced bionic emulation of human binaural sound localization
4815133	Sound field producing apparatus
4815132	Stereophonic voice signal transmission system
4815131	Digital audio channel selection circuit
4807217	Multi-channel stereo reproducing apparatus
4803727	Transmission system
4799260	Variable matrix decoder
4792974	Automated stereo synthesizer for audiovisual programs
4782530	Non-recursive system for expanding the stereo base of stereophonic acoustic diffusion apparatus
4764960	Stereo reproduction system
4759066	Sound system with isolation of dimensional sub-speakers
4748669	Stereo enhancement system
4747142	Three-track sterophonic system
4739513	Method and apparatus for measuring and correcting acoustic characteristic in sound field
4736426	Graphic balancer
4706287	Stereo generator
4704728	Signal re-distribution, decoding and processing in accordance with amplitude, phase, and other characteristics
4703502	Stereo signal reproducing system
4700389	Stereo sound field enlarging circuit
4696036	Directional enhancement circuit
4696035	System for expanding the stereo base of stereophonic acoustic diffusion apparatus
4691362	Dihedral loudspeakers with variable dispersion circuits
4691358	Stereo image display device
4685136	Triphonic sound system
4685134	Multichannel computer generated sound synthesis system
4682364	Fader circuit arrangement in electrical reproducing apparatus and fader control for such an arrangement
4680796	Sound encoding system
4653096	Device for forming a simulated stereophonic sound field
4648117	Mobile sound field correcting device
4648115	Pan-pot control apparatus
4648113	Method and apparatus for providing a visual indication of a relationship between two signals
4646348	Blend control for low voltage stereo decoders
4642812	Sound field enlarging device and method
4638506	Sound field simulation system and method for calibrating same
4638505	Optimized low frequency response of loudspeaker systems having main and sub-speakers
4633497	Separation control circuit
4630298	Method and apparatus for reproducing sound having a realistic ambient field and acoustic image
4625326	Apparatus for generating a pseudo-stereo signal
4622691	Mobile sound field correcting device
4622689	Stereophonic sound system
4618987	Large-area acoustic radiation system
4615043	Triphonic sound system
4612663	Multichannel audio reproduction system
4607381	Signal mixing circuit
4603429	Dimensional sound recording and apparatus and method for producing the same
4596034	Sound reproduction system and method
4594730	Apparatus and method for enhancing the perceived sound image of a sound signal by source localization
4594729	Method of and apparatus for the stereophonic reproduction of sound in a motor vehicle
4589129	Signal decoding system
4589128	Process for the production of a sound recording and a device for carrying out the process
4586192	Soundstage boundary expansion system
4584536	Balance control circuit
4578809	Dihedral loudspeakers with variable dispersion circuits
4577540	Electronic musical instrument having a pan-pot function
4577305	Stereophonic motion picture photographic sound-tracks compatible with different sound projection formats and record and playback apparatus therefore
4574391	Stereophonic sound producing apparatus for a game machine
4569074	Method and apparatus for reproducing sound having a realistic ambient field and acoustic image
4567607	Stereo image recovery
4555795	Monaural to binaural audio processor
4536716	Stereo amplifier circuit for bichannel signals
4535471	Compression/expansion device
4532647	Automatic dimension control for a directional enhancement system
4525855	Variable rate and variable limit dimension controls for a directional enhancement system
4524451	Sound reproduction system having sonic image localization networks
4521906	Speaker systems for producing balanced stereo images at multiple locations
4516257	Triphonic sound system
4509191	Electronic stereo reverberation device
4509185	Time domain audio panner
4497064	Method and apparatus for reproducing sound having an expanded acoustic image
4495637	Apparatus and method for enhanced psychoacoustic imagery using asymmetric cross-channel feed
4489439	Electronic stereo reverberation device with doubler
4489432	Method and apparatus for reproducing sound having a realistic ambient field and acoustic image
4479235	Switching arrangement for a stereophonic sound synthesizer
4468537	Sound system having suppression of AM stereophonic receiving circuit-induced noise
4466117	Microphone for stereo reception
4464781	Equalizer apparatus
4457012	FM Stereo apparatus and method
4455673	Stereo indicating circuit
4451927	Separation correction method and apparatus for plural channel transmission system
4449229	Signal processing circuit
4443889	Acoustic apparatus and method
4438525	Reverberation apparatus
4434508	Radio receiver with audio selectivity
4433209	Stereo/monaural selecting circuit
4424574	Function presetting circuit for an audio/video recording and reproducing system
4424416	Acoustic reproducing apparatus
4420711	Circuit arrangement for different color light emission
4418243	Acoustic projection stereophonic system
4415768	Tuning apparatus and method
4414430	Decoders for feeding irregular loudspeaker arrays
4410761	Stereo loudspeaker system for a picture reproducing screen
4408095	Acoustic apparatus
4404429	Matching volume control characteristics for two channels
4404427	Audio signal processing system
4399328	Direction and frequency independent column of electro-acoustic transducers
4395739	Recording/reproducing apparatus with selective attenuation of reproduced signals to facilitate comprehension of external speech signals
4394537	Sound reproduction device
4394536	Sound reproduction device
4394535	Split phase stereophonic sound synthesizer
4392019	Surround sound system
4388654	Video disc player with selectively enabled audio signal expander circuitry
4388494	Process and apparatus for improved dummy head stereophonic reproduction
4382157	Multiple speaker type sound producing system
4369335	Two-channel, four loudspeaker-component enhanced sterophonic system
4359605	Monaural signal to artificial stereo signals convertings and processing circuit for headphones
4356349	Acoustic image enhancing method and apparatus
4355203	Stereo image separation and perimeter enhancement
4352953	Multichannel non-discrete audio reproduction system
4349698	Audio signal translation with no delay elements
4349697	Sound reproduction system
4347405	Sound reproducing systems utilizing acoustic processing unit
4332979	Electronic environmental acoustic simulator
4329544	Sound reproduction system for motor vehicle
4321428	Acoustic monolithic power semiconductor integrated circuit and acoustic system using the same
4317958	Noise reducing circuit for CTD delay line
4316058	Sound field transmission system surrounding a listener
4309570	Dimensional sound recording and apparatus and method for producing the same
4308424	Simulated stereo from a monaural source sound reproduction system
4308423	Stereo image separation and perimeter enhancement
4303800	Reproducing multichannel sound
4302837	FM Multiplex system for selectively delaying one of two audio signals
4293821	Audio channel separating apparatus
4283600	Recirculationless concert hall simulation and enhancement system
4282605	Sound reproducing with remote amplifying transducer
4275267	Ambience processor
4270216	Tuning and volume indicator
4266093	Compatible four channel radio broadcast and receiving system
4262170	Microphone system for producing signals for surround-sound transmission and reproduction
4251688	Audio-digital processing system for demultiplexing stereophonic/quadriphonic input audio signals into 4-to-72 output audio signals
4251685	Reproduction of sound
4239939	Stereophonic sound synthesizer
4239937	Stereo separation control
4237343	Digital delay/ambience processor
4236041	Stereophonic signal indicating apparatus
4236039	Signal matrixing for directional reproduction of sound
4230905	Stereophonic system with discrete bass channels
4227221	PCM Recording apparatus
4219696	Sound image localization control system
4218585	Dimensional sound producing apparatus and method
4218583	Varying loudspeaker spatial characteristics
4209665	Audio signal translation for loudspeaker and headphone sound reproduction
4208547	Method and apparatus for reducing noise in stereophonic signals
4208546	Phase stereophonic system
4204092	Audio image recovery system
4199658	Binaural sound reproduction system
4196314	Sound distributing system improvements
4196313	Polyphonic sound system
4192969	Stage-expanded stereophonic sound reproduction
4191852	Stereophonic sense enhancing apparatus
4188504	Signal processing circuit for binaural signals
4186281	Multichannel record disc reproducing apparatus
4182930	Detection and monitoring device
4179713	Method and equipment for the production of multi-channel sound signal
4176252	Multi-dimensional audio projector
4167651	Mixing two signals derived from an audio source without oscillation
4164625	A/C Circuit for combining an automobile radio speaker with speakers of an automobile stereophonic system
4162457	Expansion circuit for improved stereo and apparent monaural image
4159397	Acoustic translation of quadraphonic signals for two- and four-speaker sound reproduction
4152664	Constant power balance control and method
4152550	Apparatus for reproducing a multichannel record disc
4152542	Multichannel matrix logic and encoding systems
4151369	Sound reproduction systems
4150253	Signal distortion circuit and method of use
4149036	Crosstalk compensating circuit
4149031	Multichannel matrix logic and encoding systems
4143244	Binaural sound reproducing system
4139729	Sound reproduction system with matrixing of power amplifier outputs
4139728	Signal processing circuit
4136260	Out-of-head localized sound reproduction system for headphone
4132859	Sound reproducing apparatus
4121059	Sound field expanding device
4119798	Binaural multi-channel stereophony
4118599	Stereophonic sound reproduction system
4115666	Discrete 4-channel stereo recording and/or reproducing system compatible with matrix systems
4113984	Voltage translating circuit for volume and balance control of a four-channel audio system
4112255	Rota-phonic system for stereo quadrophonic sound system
4107478	Angle modulated wave demodulation system
4107463	Stereophonic noise suppression system
4105865	Audio distributor
4105864	Stereo and spaciousness reverberation system using random access memory and multiplex
4097689	Out-of-head localization headphone listening device
4097688	Stereophonic reproducing system
4096360	Multichannel record disc reproducing system
4096353	Microphone system for producing signals for quadraphonic reproduction
4095049	Non-rotationally-symmetric surround-sound encoding system
4087631	Projected sound localization headphone apparatus
4086433	Sound reproduction system with non-square loudspeaker lay-out
4085291	Synthetic supplementary channel matrix decoding systems
4081606	Sound reproduction systems with augmentation of image definition in a selected direction
4076959	Volume, tone and balance control for multi-channel audio systems
4075425	Multi-directional sound signal reproducing system
4074083	Stereophonic sound system particularly useful in a cinema auditorium
4072821	Microphone system for producing signals for quadraphonic reproduction
4070552	Multi-directional stereo multiple recording apparatus with constant acceleration cutting
4069394	Stereophonic sound reproduction system
4068093	Device for transmitting audio-frequency signals
4063034	Audio system with enhanced spatial effect
4063032	Constant power balance controls for stereophonic and quadraphonic sound systems
4060696	Binaural four-channel stereophony
4058675	Loudspeaker system for use in a stereophonic sound reproduction system
4053711	Simulation of reverberation in audio signals
4049912	Channel mixer for multi-channel audio systems
4048442	Stereophonic sound adaptor for simulating sound movement
4042779	Coincident microphone simulation covering three dimensional space and yielding various directional outputs
4039755	Auditorium simulator economizes on delay line bandwidth
4034158	Quadraphonic passive four-channel decoder
4027107	Multiple channel FM stereo system
4027101	Simulation of reverberation in audio signals
4024344	Center channel derivation for stereophonic cinema sound
4021612	Decoder apparatus applicable to matrix 4-channel systems of different types
4021610	Control circuit for a matrixed four channel audio reproducing system
4018992	Decoder for quadraphonic playback
4006313	Transmitting and reproducing system having improved noise reduction characteristics for quadraphonic audio information signals
4006306	Audio signal processing apparatus
4004095	System for time sharing an audio amplifier
4002840	Angle-modulated signal transmission system
4002835	Multi-channel decoding circuit for two-channel audio systems
4001518	Discrete four-channel disc reproducing system
3997725	Multidirectional sound reproduction systems
3992590	Matrix amplifying circuit
3989903	Multi-directional sound signal recording and/or reproducing system with crosstalk compensation means
3989897	Method and apparatus for reducing noise content in audio signals
3987256	Grooved record playback system with multiple transducers
3985978	Method and apparatus for control of FM beat distortion
3985964	4-Channel stereophonic demodulating system
3983500	Angle modulated wave demodulation system
3983334	Matrix and equalizer circuit with gain control
3982071	Multichannel sound signal processing system employing voltage controlled amplifiers
3982069	Decoding apparatus for use in matrix four channel systems of a plurality of types
3979564	4-Channel stereo recording and reproducing method
3971890	Method and apparatus for quadraphonic enhancement of stereophonic signals
3970788	Monaural and stereo compatible multidirectional sound matrixing
3970787	Auditorium simulator and the like employing different pinna filters for headphone listening
3969588	Audio pan generator
3968331	Encoding and decoding system for quadraphonic sound
3967063	Logic for matrix systems for reproducing quadraphonic sound
3962543	Method and arrangement for controlling acoustical output of earphones in response to rotation of listener's head
3959590	Stereophonic sound system
3958085	Compatible 4-2-4 encoding-decoding system
3956709	Balance control system for multichannel audio apparatus
3953686	Multichannel record disc recording system
3952161	Audio processor circuit for an FM-stereo radio receiver
3952157	Matrix four-channel decoding system
3952156	Signal processing system
3947637	Signal composing circuit
3946165	Method and apparatus for control of crosstalk in multiple frequency recording
3944941	Switching circuit for use with balanced transformerless amplifier
3944755	Composite filter circuit
3944748	Means and method of reducing interference in multi-channel reproduction of sounds
3944735	Directional enhancement system for quadraphonic decoders
3943303	Abnormal sound eliminating system in record disc reproducing apparatus
3943293	Stereo sound reproducing apparatus with noise reduction
3943287	Apparatus and method for decoding four channel sound
3943286	Variable gain control circuit
3941931	Audio signal mixing system
3940789	Multicolor display for the visual-aesthetic portrayal of electric signals
3940698	Muting circuit
3940559	Compatible four channel recording and reproducing system
3939489	Recording and reproducing apparatus
3937885	Control circuit for a matrixed four channel audio reproducing system
3936619	Four-channel stereophonic reproducing system for reproducing discrete CD-4 four-channel stereo disc
3936618	Multichannel record disc reproducing system and apparatus
3934087	Angle modulated wave demodulation system
3934086	Matrix four-channel decoding system
3932706	Signal synthesizing system adaptable for discrete four-channel sound reproducing system and matrix four-channel sound reproducing system
3931482	Four-channel stereophonic reproducing system for reproducing discrete four-channel stereophonic discs
