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2017

19609451Multi-rate system for audio processing
29609436Systems and methods for audio creation and delivery
39602943Audio processing method and audio processing apparatus
49591423Nonlinear power supply ramping for pop-click noise reduction
59591420Generation of individual sound zones within a listening room
69591410Hearing assistance apparatus
79589573Wind noise reduction
89584942Determination of head-related transfer function data from user vocalization perception
99584933Method and apparatus for localization of streaming sources in hearing assistance system
109584918Dynamic volume control and multi-spatial processing protection
119584906Mixing device, mixing signal processing device, mixing program and mixing method
129584905Audio signal mixing
139577595Sound processing apparatus, sound processing method, and program
149570083Stereo audio encoder and decoder
159569073Method for outputting a modified audio signal and graphical user interfaces produced by an application program
169565316Multidimensional virtual learning audio programming system and method
179560464System and method for producing head-externalized 3D audio through headphones
189554227Method and apparatus for processing audio signal
199544707Audio output balancing
209544706Customized head-related transfer functions
219538306Surround component generator
229538289Control parameter dependent audio signal processing

2016

239532156Apparatus and method for sound stage enhancement
249532153Method and a system of providing information to a user
259531884Stereo echo suppressing device, echo suppressing device, stereo echo suppressing method, and non-transitory computer-readable recording medium storing stereo echo suppressing program
269530419Encoding of stereophonic signals
279525955Digital speaker system and electrical connection method for digital speaker system
289521502Method for determining a stereo signal
299521501Loudness adjustment for downmixed audio content
309521500Portable electronic device with directional microphones for stereo recording
319516446Scalable downmix design for object-based surround codec with cluster analysis by synthesis
329516431Spatial enhancement mode for hearing aids
339516416Multi-loudspeaker active noise cancelling headphone providing stereo effct and improved ambient noise reduction
349513157Selective audio/sound aspects
359508345Continuous voice sensing
369503831Audio playback method and apparatus
379503817Sound reproduction device
389497562Sound field control apparatus and method
399497560Audio reproducing apparatus and method
409485600Audio system, audio signal processing device and method, and program
419485589Enhanced dynamics processing of streaming audio by source separation and remixing
429479888Methods and apparatus for implementing sound events
439479886Scalable downmix design with feedback for object-based surround codec
449479871Method, medium, and system synthesizing a stereo signal
459467793Systems, methods, and apparatus for recording three-dimensional audio and associated data
469462383Audio signal processing device and audio signal processing method
479462330Multimedia audio inserter
489456289Converting multi-microphone captured signals to shifted signals useful for binaural signal processing and use thereof
499451379Sound field analysis system
509439018Audio data processing device and audio data processing method
519432793Head-related transfer function convolution method and head-related transfer function convolution device
529432789Sound separation device and sound separation method
539432237VOIP device, VOIP conferencing system, and related method
549426589Determination of individual HRTFs
559426575Apparatus and method of reproducing virtual sound of two channels based on listener's position
569420394Panning presets
579420393Binaural rendering of spherical harmonic coefficients
589414177Audio signal processing method and audio signal processing device
599398394System and method for stereo field enhancement in two-channel audio systems
609398390DJ stem systems and methods
619392389Directional audio notification
629392367Sound reproduction apparatus and sound reproduction method
639392089Mobile electronic device and sound playback method thereof
649386390Information processing apparatus and sound processing method
659380388Channel crosstalk removal
669380373Gaming headset with programmable audio paths
679374548Video/audio system and method enabling a user to select different views and sounds associated with an event
689374450Method for reproducing music file of mobile communication terminal and mobile terminal implementing the same
699374128Apparatus for encoding/decoding multichannel signal and method thereof
709373335Processing audio objects in principal and supplementary encoded audio signals
719369818Filtering with binaural room impulse responses with content analysis and weighting
729369803Apparatus and method for removing noise
739363586Narrow profile speaker configurations and systems
749357326Embedding data in stereo audio using saturation parameter modulation
759357304Sound system for establishing a sound zone
769344827Method and apparatus for audio output, and electronic device
779338572Method for practical implementation of sound field reproduction based on surface integrals in three dimensions
789338554Sound system for establishing a sound zone
799332370Method and apparatus for using spatial audio rendering for a parallel playback of call audio and multimedia content
809332360Compression and mixing for hearing assistance devices
819326086Neural induced enhancement of audio signals
829326082Song transition effects for browsing
839319818Stereo signal down-mixing method, encoding/decoding apparatus and encoding and decoding system
849307338Upmixing method and system for multichannel audio reproduction
859305566Audio signal processing apparatus
869300924Electronic handheld audio/video receiver and listening/viewing device
879282416Wireless system for hearing communication devices providing wireless stereo reception modes
889282408Processing method and processing apparatus for stereo audio output enhancement
899277344Multi-dimensional audio transformations and crossfading
909277343Enhanced stereo playback with listener position tracking
919271102Multi-dimensional parametric audio system and method
929271099Method and apparatus to use audio port to provide power and data communications for peripheral devices
939271080Audio spatialization and environment simulation
949264840Multi-dimensional audio transformations and crossfading
959258664Headphone audio enhancement system
969253585Speaker apparatus
979253572Methods and systems for synthetic audio placement
989241230Extraction of channels from multichannel signals utilizing stimulus
999236842Bass enhancement system
1009232319Systems and methods for audio processing

2015

1019219974Method and apparatus for simultaneously controlling near sound field and far sound field
1029218818Efficient and scalable parametric stereo coding for low bitrate audio coding applications
1039215544Optimization of binaural sound spatialization based on multichannel encoding
1049215523Audio output device
1059197755Multidimensional virtual learning audio programming system and method
1069196257Apparatus and a method for converting a first parametric spatial audio signal into a second parametric spatial audio signal
1079191755Spatial enhancement mode for hearing aids
1089185507Hybrid derivation of surround sound audio channels by controllably combining ambience and matrix-decoded signal components
1099185500Compression of spaced sources for hearing assistance devices
1109179235Meta-parameter control for digital audio data
1119167344Spectrally uncolored optimal crosstalk cancellation for audio through loudspeakers
1129167057Dual-mode encoder, system including same, and method for generating infra-red signals
1139161150Audio rendering device and audio rendering method
1149161132Audio processing apparatus with selection to and from multi-room mode
1159154898System and method for improving sound image localization through cross-placement
1169154896Audio spatialization and environment simulation
1179154878Interconnected speaker system
1189148740Method and apparatus for reproducing stereophonic sound
1199143878Method and system for headset with automatic source detection and volume control
1209143864Audio playback system
1219143104Audio signal processing circuit, car audio apparatus using the same, audio component apparatus, electronic device and output audio signal generating method
1229137618Multi-dimensional processor and multi-dimensional audio processor system
1239137617Correlation parameter transmitting in an encoding apparatus and decoding apparatus
1249124983Method and apparatus for localization of streaming sources in hearing assistance system
1259118991Reducing head-related transfer function data volume
1269113281Reconstruction of a recorded sound field
1279113280Method and apparatus for reproducing three-dimensional sound
1289112591Apparatus for encoding/decoding multichannel signal and method thereof
1299111529Method for encoding/decoding an improved stereo digital stream and associated encoding/decoding device
1309107021Audio spatialization using reflective room model
1319107020System and method for wireless microphone apparent positioning
1329107018System and method for sound reproduction
1339100767Converter and method for converting an audio signal
1349094754Reduction of spurious uncorrelation in FM radio noise
1359088854Acoustic control apparatus
1369088406Frame sync across multiple channels
1379087511Method, medium, and system for generating a stereo signal
1389077783Sound data transmitting apparatus, sound data transmitting method, sound data receiving apparatus, and sound data receiving apparatus
1399071919Apparatus and method for encoding and decoding spatial parameter
1409071214Audio signal controller
1419067134Video game processing apparatus and video game processing program product
1429064488Stereo encoding method, stereo encoding device, and encoder
1439053701Channel signal generation device, acoustic signal encoding device, acoustic signal decoding device, acoustic signal encoding method, and acoustic signal decoding method
1449042557Method and apparatus for reproducing three-dimensional sound field

2014

1458891775Method and encoder for processing a digital stereo audio signal
1468660272Parameter setting method and audio apparatus

2013

1478619998Spatial audio enhancement processing method and apparatus

2011

1488059824Joint sound synthesis and spatialization
1498045736Sound field reproduction system

2010

1507701966Method and apparatus for ensuring compatibility on a high performance serial bus

2006

1517050453Method and apparatus for ensuring compatibility on a high performance serial bus

2005

1526961632Signal processing apparatus
1536961439Method and apparatus for producing spatialized audio signals
1546954534Multiple signal carrier transmission apparatus and method
1556952174Serial data interface
1566950524Optimal source distribution
1576947569Audio signal processing device, interface circuit device for angular velocity sensor and signal processing device
1586937734Mute apparatus and mute method
1596934651Method for synchronizing signals acquired from unsynchronized sensors
1606931291Method and apparatus for frequency-domain downmixing with block-switch forcing for audio decoding functions
1616928179Audio processing apparatus
1626928168Transparent stereo widening algorithm for loudspeakers
1636917915Memory sharing scheme in audio post-processing
1646912500Facilitation of speech recognition in user interface
1656909924Method and apparatus for shifting pitch of acoustic signals
1666889085Method and system for forming an acoustic signal from neural timing difference data
1676883124Adaptable transducer interface
1686870935Volume stability control for partitioned audio system
1696853732Center channel enhancement of virtual sound images
1706850622Sound field correction circuit
1716842524Method for localizing sound image of reproducing sound of audio signals for stereophonic reproduction outside speakers
1726839442Audio signal processing apparatus

2004

1736831657Display control apparatus for displaying gain setting value in predetermined color hue
1746829361Headphones with integrated microphones
1756829359Multispeaker sound imaging system
1766826282Music spatialisation system and method
1776804358Sound image localizing processor
1786801628System and method for adjusting frequency response characteristics of a speaker based upon placement near a wall or other acoustically-reflective surface
1796801627Method for localization of an acoustic image out of man's head in hearing a reproduced sound via a headphone
1806795556Method of modifying one or more original head related transfer functions
1816792119Audio system
1826771778Method and signal processing device for converting stereo signals for headphone listening
1836771777Process for coding and decoding stereophonic spectral values
1846765802Audio sound quality enhancement apparatus
1856763275METHOD 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
1866763115Processing method for localization of acoustic image for audio signals for the left and right ears
1876760447Sound recording and reproduction systems
1886760446Point source speaker system
1896760050Virtual three-dimensional sound pattern generator and method and medium thereof
1906757398System and method for sensing a sound system
1916754350Surround reproducing circuit
1926747920Information reproduction apparatus and information reproduction
1936747678Audio system, its control method and storage medium
1946744487Producing a soundtrack for moving picture sequences
1956741965Differential stereo using two coding techniques
1966741961Low power audio processor that multiplexes component distribution signals
1976741711Method of synthesizing an approximate impulse response function
1986738479Method of audio signal processing for a loudspeaker located close to an ear
1996735314Expanded stereophonic circuit with tonal compensation
2006731759Audio signal reproduction device
2016725111METHOD 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
2026718039Acoustic correction apparatus
2036714652Dynamic decorrelator for audio signals
2046711265Centralizing of a spatially expanded stereophonic audio image
2056700980Method and device for synthesizing a virtual sound source
2066690799Stereo signal processing apparatus
2076683962Method and system for driving speakers with a 90 degree phase shift
2086683959Stereophonic device and stereophonic method
2096681018Audio signal processor and audio device
2106677951Entertainment apparatus having compatibility and computer system
2116673995Musical signal processing apparatus

2003

2126661737Acoustic logging tool having programmable source waveforms
2136658310Method of entering audio signal, method of transmitting audio signal, audio signal transmitting apparatus, and audio signal receiving and reproducing apparatus
2146643674Digital filtering method and device and sound image localizing device
2156643503Wireless speaker for radio communication device
2166643377Audio output system and method therefor
2176643375Method of processing a plural channel audio signal
2186631193Audio system enhancement using psycho acoustic matrix
2196629078Apparatus and method of coding a mono signal and stereo information
2206625286Precise amplitude correction circuit
2216621906Sound field generation system
2226614912Sound reproducing device, earphone device and signal processing device therefor
2236614910Stereo sound expander
2246614365Coding device and method, decoding device and method, and recording medium
2256608902Stereo signal separation circuit and application thereof
2266606388Method and system for enhancing audio signals
2276597791Audio enhancement system
2286594368DVE system with dynamic range processing
2296593809Circuit for widening the stereobase in the reproduction of stereophonic sound signals
2306591241Selecting a coupling scheme for each subband for estimation of coupling parameters in a transform coder for high quality audio
2316590510Sample rate converter
2326587566Sound field forming circuit and sound field forming apparatus
2336587565System for improving a spatial effect of stereo sound or encoded sound
2346584357Method and system for forming an acoustic signal from neural timing difference data
2356578203Audio/video signal distribution system for head mounted displays
2366577738Parametric virtual speaker and surround-sound system
2376574602Dual channel phase flag determination for coupling bands in a transform coder for high quality audio
2386560497METHOD 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
2396553121Three-dimensional acoustic processor which uses linear predictive coefficients
2406539357Technique for parametric coding of a signal containing information
2416535611Method and apparatus for reducing switching noise of a digital volume control
2426535608Stereo broadcasting receiving device
2436532291Head tracking with limited angle output
2446529787Multimedia computer speaker system with bridge-coupled subwoofer
2456523006Three dimensional audio vision
2466522751Stereophonic signal processing apparatus
2476522750Method and corresponding system for influencing the stereo channel separation of an audiosignal
2486507657Stereophonic sound image enhancement apparatus and stereophonic sound image enhancement method
2496504934Apparatus and method for localizing sound image
2506504933Three-dimensional sound system and method using head related transfer function

2002

2516501843Automotive audio reproducing apparatus
2526501717Apparatus and method for processing digital audio signals of plural channels to derive combined signals with overflow prevented
2536498857Method of synthesizing an audio signal
2546498856Vehicle-carried sound reproduction apparatus
2556498852Automatic LFE audio signal derivation system
2566487572Digital filtering method and device and sound image localizing device
2576483428Removable front panel for an entertainment device
2586479742Audio system in electronic musical instrument
2596477255Audio system
2606470087Device for reproducing multi-channel audio by using two speakers and method therefor
2616466913Method of determining a sound localization filter and a sound localization control system incorporating the filter
2626459797Audio mixer
2636449368Multidirectional audio decoding
2646445798Method of generating three-dimensional sound
2656438434Mixing, coding and decoding devices and methods
2666430535Method and device for projecting sound sources onto loudspeakers
2676430294Sound image localization method and apparatus, delay amount control apparatus, and sound image control apparatus with using delay amount control apparatus
2686430293Recording and play-back two-channel system for providing a holophonic reproduction of sounds
2696430217Noise eliminated digital wireless transceiver apparatus
2706424719Acoustic crosstalk cancellation system
2716421447Method of generating surround sound with channels processing separately
2726421446Apparatus for creating 3D audio imaging over headphones using binaural synthesis including elevation
2736418226Method of positioning sound image with distance adjustment
2746408327Synthetic stereo conferencing over LAN/WAN
2756385320Surround signal processing apparatus and method
2766377862Method for processing and reproducing audio signal
2776370256Time processed head related transfer functions in a headphone spatialization system
2786360200Process for reducing redundancy during the coding of multichannel signals and device for decoding redundancy-reduced multichannel signals
2796356211Encoding method and apparatus and recording medium
2806345125Multiple description transform coding using optimal transforms of arbitrary dimension
2816341165Coding and decoding of audio signals by using intensity stereo and prediction processes

2001

2826330370Multiple description transform coding of images using optimal transforms of arbitrary dimension
2836321869Speaker system for personal computers
2846317503Multi-mode LED indicator for recording services
2856307941System and method for localization of virtual sound
2866292570Surround sound
2876285767Low-frequency audio enhancement system
2886285766Apparatus for localization of sound image
2896278784Intermittent errors in digital disc players
2906275593Apparatus and methods for the harmonic enhancement of electronic audio signals
2916271771Hearing-adapted quality assessment of audio signals
2926269166Three-dimensional acoustic processor which uses linear predictive coefficients
2936259793Sound reproduction method, sound reproduction apparatus, sound data creation method, and sound data creation apparatus
2946253185Multiple description transform coding of audio using optimal transforms of arbitrary dimension
2956246773Audio signal processors
2966243476Method and apparatus for producing binaural audio for a moving listener
2976229899Method and device for developing a virtual speaker distant from the sound source
2986222927Binaural signal processing system and method
2996215879Method for introducing harmonics into an audio stream for improving three dimensional audio positioning
3006195434Apparatus for creating 3D audio imaging over headphones using binaural synthesis
3016181800System and method for interactive approximation of a head transfer function
3026178247Headphone apparatus
3036175631Method and apparatus for decorrelating audio signals
3046169812Point source speaker system
3056169806Computer, computer system and desk-top theater system

2000

3066157725Sound system for a motor vehicle and method for defining a functional scope of a sound system
3076154553Sound bubble structures for sound reproducing arrays
3086154545Method and apparatus for two channels of sound having directional cues
3096154161Integrated audio mixer
3106148243Sound Processing method and system
3116144747Head mounted surround sound system
3126141646Digital sound processor for processing multiple standard sound signals and capable of generating additional audio signals
3136130948Sound field processor with sound field expanding apparatus
3146118875Binaural synthesis, head-related transfer functions, and uses thereof
3156111958Audio spatial enhancement apparatus and methods
3166108584Multichannel digital audio decoding method and apparatus
3176108430Headphone apparatus
3186108427Method and apparatus for eliminating audio feedback
3196094638Audio signal processing apparatus and audio signal processing method for multi channel audio reproduction system
3206094488Dynamic computation of the ratio between two bitstreams representing slowly varying quantities and Dolby Pro Logic decoder
3216091894Virtual sound source positioning apparatus
3226091826Method for implementing a sound reproduction system for a large space, and a sound reproduction system
3236078669Audio spatial localization apparatus and methods
3246075868Apparatus for the creation of a desirable acoustical virtual reality
3256069962Point source speaker system
3266067361Method and apparatus for two channels of sound having directional cues
3276067360Apparatus for localizing a sound image and a method for localizing the same
3286052470System for processing audio surround signal
3296044307Method of entering audio signal, method of transmitting audio signal, audio signal transmitting apparatus, and audio signal receiving and reproducing apparatus
3306041225Monitor control circuit using wireless headphones and method therefor
3316035045Sound image localization method and apparatus, delay amount control apparatus, and sound image control apparatus with using delay amount control apparatus
3326026169Sound image localization device
3336023512Three-dimensional acoustic processor which uses linear predictive coefficients
3346021205Headphone device
3356016473Low bit-rate spatial coding method and system
3366011851Spatial audio processing method and apparatus for context switching between telephony applications

1999

3376005947Technique for enhancing stereo sound
3386002774Arrangement, a system, a circuit and a method for enhancing a stereo image
3395999630Sound image and sound field controlling device
3405995631Sound image localization apparatus, stereophonic sound image enhancement apparatus, and sound image control system
3415987141Stereo expander
3425982903Method 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
3435982902System for generating atmospheric quasi-sound for audio performance
3445974383Configuring an audio mixer in an audio interface
3455974153Method and system for sound expansion
3465974152Sound image localization control device
3475959597Image/audio reproducing system
3485951646System and method for scheduling and processing image and sound data
3495949894Adaptive audio systems and sound reproduction systems
3505948052Apparatus using a logarithm based processor and an audio amplifier
3515946400Three-dimensional sound processing system
3525943427Method and apparatus for three dimensional audio spatialization
3535937071Sound field expanding apparatus with improved tone control system
3545930733Stereophonic image enhancement devices and methods using lookup tables
3555926553Method for measuring the conservation of stereophonic audio signals and method for identifying jointly coded stereophonic audio signals
3565926332Digital sound reproducing and editing device for recording sound with fixed editing points
3575920632Apparatus for continuously switching a demodulator from stereo operation to mono operation, and vice versa
3585917916Audio reproduction systems
3595915028Amplitude demodulator
3605912975Method and circuit for creating phantom sources using phase shifting circuitry
3615903853Radio transceiver including noise suppressor
3625896457Light enhanced sound device and method
3635896215Multi-channel system with multiple information sources
3645892831Method and circuit for creating an expanded stereo image using phase shifting circuitry
3655892830Stereo enhancement system
3665889870Acoustic heterodyne device and method
3675883962Method and apparatus for spatially enhancing stereo and monophonic signals
3685878145Electronic circuit and process for creation of three-dimensional audio effects and corresponding sound recording
3695873065Two-stage compression and expansion of coupling processed multi-channel sound signals for transmission and recording
3705872851Dynamic stereophonic enchancement signal processing system
3715862230Method to reduce perceived sound leakage between auditoriums in multiplex theaters
3725862229Sound generator synchronized with image display
3735862227Sound recording and reproduction systems
3745860060Method for left/right channel self-alignment

1998

3755854843Virtual navigator, and inertial angular measurement system
3765850454Method and apparatus for spatially enhancing stereo and monophonic signals
3775850453Acoustic correction apparatus
3785844816Angle detection apparatus and audio reproduction apparatus using it
3795841879Virtually positioned head mounted surround sound system
3805838800Apparatus for enhancing stereo effect with central sound image maintenance circuit
3815822440Enhanced concert audio process utilizing a synchronized headgear system
3825822437Signal modification circuit
3835812677Acoustic signal processing method and apparatus
3845812676Near-field reproduction of binaurally encoded signals
3855812675Sound reproducing array processor system
3865812672Method for reducing data in the transmission and/or storage of digital signals of several dependent channels
3875811707Effect adding system
3885809153Electroacoustical transducing
3895809149Apparatus for creating 3D audio imaging over headphones using binaural synthesis
3905808923Denormalization device and method for multichannel audio decoder
3915802194Stereo loudspeaker system with tweeters mounted on rotatable enlongated arms
3925802182Audio process distortion
3935799094Surround signal processing apparatus and video and audio signal reproducing apparatus
3945798922Method and apparatus for electronically embedding directional cues in two channels of sound for interactive applications
3955796845Sound field and sound image control apparatus and method
3965778082Method and apparatus for localization of an acoustic source
3975774567Audio codec with digital level adjustment and flexible channel assignment
3985774558Sound imager
3995774556Stereo enhancement system including sound localization filters
4005771041System for producing directional sound in computer based virtual environment
4015768393Three-dimensional sound system
4025767739Digital demodulator for quadrature amplitude and phase modulated signals
4035764777Four dimensional acoustical audio system
4045761434Digital audio system including a software controlled phase lock loop for synchronizing audio sources to a common clock source
4055761314Audio reproducing apparatus and headphone
4065761313Circuit for improving the stereo image separation of a stereo signal
4075761295Telephone instrument and method for altering audible characteristics
4085757939Method for demonstrating sound quality differences between audio samples
4095754660Sound generator synchronized with image display
4105751817Simplified analog virtual externalization for stereophonic audio
4115751815Apparatus for audio signal stereophonic adjustment
4125748745Analog vector processor and method for producing a binaural signal
4135745584Sound bubble structures for sound reproducing arrays
4145742687Signal 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
4155740253Sterophonic sound field expansion device
4165736943Method for determining the type of coding to be selected for coding at least two signals
4175727066Sound Reproduction systems
4185724429System and method for enhancing the spatial effect of sound produced by a sound system
4195719944System and method for creating a doppler effect
4205717767Angle detection apparatus and audio reproduction apparatus using it
4215717763Vocal mix circuit
4225717670Information compacting method and apparatus, compacted information expanding method and apparatus, compacted information recording/transmitting apparatus, compacted information receiving apparatus and recording medium
4235717534Digital sound reproducing and editing device with variable-speed continuous sound reproduction
4245715317Apparatus for controlling localization of a sound image
4255710818Apparatus for expanding and controlling sound fields

1997

4265703999Process for reducing data in the transmission and/or storage of digital signals from several interdependent channels
4275703956External memory control circuit for sound field processing digital signal processor
4285703953Monaural signal judgement circuit
4295701344Audio processing apparatus
4305696834Stereo system and stereo method for electronic acoustical system
4315696831Audio reproducing apparatus corresponding to picture
4325692050Method and apparatus for spatially enhancing stereo and monophonic signals
4335689570Sound reproducing array processor system
4345687239Audio reproduction apparatus
4355684881Sound field and sound image control apparatus and method
4365671286Strategy for controlling FM stereo separation and frequency response in noisy reception environments
4375661812Head mounted surround sound system
4385661808Stereo enhancement system
4395657454Audio decoder circuit and method of operation
4405657391Sound image enhancement apparatus
4415642437System decoder circuit with temporary bit storage and method of operation
4425638343Method and apparatus for re-recording multi-track sound recordings for dual-channel playbacK
4435636324Apparatus and method for stereo audio encoding of digital audio signal data
4445633935Stereo ultradirectional microphone apparatus
4455631964Audio apparatus
4465631848System decoder circuit and method of operation
4475627535Quantization apparatus
4485625745Noise imaging protection for multi-channel audio signals
4495619582Enhanced concert audio process utilizing a synchronized headgear system
4505613035Apparatus for adaptively encoding input digital audio signals from a plurality of channels
4515613010Apparatus for reproducing sound with a reduced dynamic range
4525598478Sound image localization control apparatus
4535596645Sound image localization control device for controlling sound image localization of plural sounds independently of each other
4545596603Device for wireless transmission of digital data, in particular of audio data, by infrared light in headphones
4555594801Ambient expansion loudspeaker system
4565594494Moving picture coding apparatus
4575592588Method and apparatus for object-oriented digital audio signal processing using a chain of sound objects
4585592558Sound reproduction device

1996

4595590207Sound reproducing array processor system
4605579396Surround signal processing apparatus
4615579395Stereo decoder with cross-talk compensation
4625572591Sound field controller
4635566241Method and apparatus for presentation of on-line directional sound
4645561716Demodulator
4655557680Loudspeaker system for producing multiple sound images within a listening area from dual source locations
4665557590Auto changer capable of recording/reproducing information signals on a selective disc-shaped recording medium
4675555515Apparatus and method for generating linearly filtered composite signal
4685555310Stereo voice transmission apparatus, stereo signal coding/decoding apparatus, echo canceler, and voice input/output apparatus to which this echo canceler is applied
4695555306Audio signal processor providing simulated source distance control
4705553147Stereophonic reproduction method and apparatus
4715550924Reduction of background noise for speech enhancement
4725544249Method of simulating a room and/or sound impression
4735535300Perceptual coding of audio signals using entropy coding and/or multiple power spectra
4745526429Headphone apparatus having means for detecting gyration of user's head
4755524053Sound field control device
4765521982Electronic device for the generation of acoustic spatial effects
4775521981Sound positioner
4785517570Sound reproducing array processor system
4795509079Back-masking effect generator
4805509017Process for simultaneous transmission of signals from N signal sources
4815500900Methods and apparatus for producing directional sound
4825495534Audio signal reproducing apparatus
4835491773Encoding system comprising a subband coder for subband coding of a wideband digital signal constituted by first and second signal components
4845491754Method and system for artificial spatialisation of digital audio signals
4855487113Method and apparatus for generating audiospatial effects
4865485514Telephone instrument and method for altering audible characteristics

1995

4875477270Distance-adaptive microphone for video camera
4885473697Echo generating apparatus
4895469511Method and apparatus for presentation of on-line directional sound
4905469508Audio signal processor
4915455866Adaptive separation control for stereophonic radio receiver
4925452360Sound field control device and method for controlling a sound field
4935452359Acoustic signal reproducing apparatus
4945450494Automatic volume controlling apparatus
4955440639Sound localization control apparatus
4965440638Stereo enhancement system
4975438623Multi-channel spatialization system for audio signals
4985434924Hearing 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
4995434921Stereo image control circuit
5005428184Karaoke circuit for optical disk player
5015420929Signal processor for sound image enhancement
5025418856Stereo signal generator
5035404406Method for controlling localization of sound image
5045400410Signal separator
5055400405Audio image enhancement system
5065398286System for enhancing an analog signal
5075394477Microprocessor controlled multiple channel VTR configuration of an audio follow video mixer
5085394474Echo attaching circuit and audio device using the same
5095386478Sound system remote control with acoustic sensor
5105386082Method of detecting localization of acoustic image and acoustic image localizing system
5115384851Method and apparatus for controlling sound localization
5125381482Sound field controller

1994

5135373562Signal processor for sterophonic signals
5145371799Stereo headphone sound source localization system
5155347499Circuit for selectively setting a monaural playback channel in a stereo audio apparatus
5165343534Sequential audio switcher
5175343531Audio reproducing apparatus
5185341457Perceptual coding of audio signals
5195337363Method for generating three dimensional sound
5205333202Multidimensional stereophonic sound reproduction system
5215333200Head diffraction compensated stereo system with loud speaker array
5225333199Digital signal processor for simultaneously processing left and right signals
5235305386Apparatus for expanding and controlling sound fields
5245297209System for calibrating sound field
5255278909System and method for stereo digital audio compression with co-channel steering

1993

5265274708Digital stereo sound enhancement unit and method
5275272757Multi-dimensional reproduction system
5285272756Method and apparatus for determining phase correlation of a stereophonic signal
5295261757Shaft mount for data coupler system
5305257253Laser vision disc with digital sound (LDD) disc player for reproducing analog audio signals mixed with digital audio signals
5315255326Interactive audio control system
5325245663Back-masking effect generator
5335235646Method and apparatus for creating de-correlated audio output signals and audio recordings made thereby
5345228085Perceived sound
5355214705Circuit and method for communicating digital audio information
5365208860Sound imaging method and apparatus
5375206910Stereo microphone unit
5385201005Sound field compensating apparatus
5395181248Acoustic signal reproducing apparatus
5405181247Sound image enhancing

1992

5415175768Method and apparatus for enhancing the stereo effect in headsets having cross coupling voice coils
5425164840Apparatus for supplying control codes to sound field reproduction apparatus
5435155770Surround processor for audio signal
5445153362Electronic musical instrument having pan control function
5455144670Sound output system
5465140637Device and method for removing vocal signals
5475136651Head diffraction compensated stereo system
5485129004Automotive multi-speaker audio system with different timing reproduction of audio sound
5495123050Sound field control system
5505119420Device for correcting a sound field in a narrow space
5515109415Audio signal processing system performing balance control in both amplitude and phase of audio signal
5525105462Sound imaging method and apparatus
5535083311Sound field producing apparatus

1991

5545073936Stereophonic microphone system
5555065432Sound effect system
5565046097Sound imaging process
5575042068Audio spatial equalization system
5585040219Sound reproducing apparatus
5595034983Head diffraction compensated stereo system
5605033092Stereophonic reproduction system
5615033086Stereophonic binaural recording or reproduction method
5625027687Sound field control device
5635005201Apparatus and method thereof for improvement of stereophonic sound

1990

5644980914Sound field correction system
5654975954Head diffraction compensated stereo system with optimal equalization
5664953219Stereo signal reproducing system using reverb unit
5674910779Head diffraction compensated stereo system with optimal equalization
5684910778Signal enhancement processor for stereo system
5694908858Stereo processing system
5704893342Head diffraction compensated stereo system

1989

5714890065Relative time delay correction system utilizing window of zero correction
5724888809Method of and arrangement for adjusting the transfer characteristic to two listening position in a space
5734868878Sound field correction system
5744866774Stero enhancement and directivity servo
5754856064Sound field control apparatus
5764847904Ambient imaging loudspeaker system
5774841572Stereo synthesizer
5784837824Stereophonic image widening circuit
5794817162Binaural correlation coefficient correcting apparatus
5804817149Three-dimensional auditory display apparatus and method utilizing enhanced bionic emulation of human binaural sound localization
5814815133Sound field producing apparatus
5824815132Stereophonic voice signal transmission system
5834815131Digital audio channel selection circuit
5844803727Transmission system

1988

5854782530Non-recursive system for expanding the stereo base of stereophonic acoustic diffusion apparatus
5864764960Stereo reproduction system
5874759066Sound system with isolation of dimensional sub-speakers
5884748669Stereo enhancement system
5894739513Method and apparatus for measuring and correcting acoustic characteristic in sound field

1987

5904700389Stereo sound field enlarging circuit
5914696035System for expanding the stereo base of stereophonic acoustic diffusion apparatus
5924691362Dihedral loudspeakers with variable dispersion circuits
5934653096Device for forming a simulated stereophonic sound field
5944648117Mobile sound field correcting device
5954642812Sound field enlarging device and method

1986

5964633497Separation control circuit
5974622691Mobile sound field correcting device
5984607381Signal mixing circuit
5994603429Dimensional sound recording and apparatus and method for producing the same
6004596034Sound reproduction system and method
6014589128Process for the production of a sound recording and a device for carrying out the process
6024586192Soundstage boundary expansion system
6034578809Dihedral loudspeakers with variable dispersion circuits
6044569074Method and apparatus for reproducing sound having a realistic ambient field and acoustic image
6054567607Stereo image recovery

1985

6064555795Monaural to binaural audio processor
6074536716Stereo amplifier circuit for bichannel signals
6084535471Compression/expansion device
6094509191Electronic stereo reverberation device
6104509185Time domain audio panner
6114497064Method and apparatus for reproducing sound having an expanded acoustic image
6124495637Apparatus and method for enhanced psychoacoustic imagery using asymmetric cross-channel feed

1984

6134489432Method and apparatus for reproducing sound having a realistic ambient field and acoustic image
6144479235Switching arrangement for a stereophonic sound synthesizer
6154468537Sound system having suppression of AM stereophonic receiving circuit-induced noise
6164466117Microphone for stereo reception
6174464781Equalizer apparatus
6184451927Separation correction method and apparatus for plural channel transmission system
6194449229Signal processing circuit
6204424416Acoustic reproducing apparatus

1983

6214415768Tuning apparatus and method
6224410761Stereo loudspeaker system for a picture reproducing screen
6234399328Direction and frequency independent column of electro-acoustic transducers
6244394537Sound reproduction device
6254394536Sound reproduction device
6264388654Video disc player with selectively enabled audio signal expander circuitry
6274388494Process and apparatus for improved dummy head stereophonic reproduction

1982

6284356349Acoustic image enhancing method and apparatus
6294355203Stereo image separation and perimeter enhancement
6304349698Audio signal translation with no delay elements
6314329544Sound reproduction system for motor vehicle
6324317958Noise reducing circuit for CTD delay line
6334309570Dimensional sound recording and apparatus and method for producing the same

1981

6344308423Stereo image separation and perimeter enhancement
6354302837FM Multiplex system for selectively delaying one of two audio signals

1980

6364239937Stereo separation control
6374237343Digital delay/ambience processor
6384227221PCM Recording apparatus
6394219696Sound image localization control system
6404218585Dimensional sound producing apparatus and method
6414209665Audio signal translation for loudspeaker and headphone sound reproduction
6424208547Method and apparatus for reducing noise in stereophonic signals
6434208546Phase stereophonic system
6444204092Audio image recovery system
6454199658Binaural sound reproduction system
6464196313Polyphonic sound system
6474192969Stage-expanded stereophonic sound reproduction
6484191852Stereophonic sense enhancing apparatus
6494188504Signal processing circuit for binaural signals
6504182930Detection and monitoring device

1979

6514167651Mixing two signals derived from an audio source without oscillation
6524164625A/C Circuit for combining an automobile radio speaker with speakers of an automobile stereophonic system
6534162457Expansion circuit for improved stereo and apparent monaural image
6544159397Acoustic translation of quadraphonic signals for two- and four-speaker sound reproduction
6554143244Binaural sound reproducing system
6564139728Signal processing circuit
6574136260Out-of-head localized sound reproduction system for headphone

1978

6584121059Sound field expanding device
6594118599Stereophonic sound reproduction system
6604107463Stereophonic noise suppression system
6614105865Audio distributor
6624105864Stereo and spaciousness reverberation system using random access memory and multiplex
6634097689Out-of-head localization headphone listening device
6644087631Projected sound localization headphone apparatus
6654069394Stereophonic sound reproduction system

1977

6664058675Loudspeaker system for use in a stereophonic sound reproduction system

1976

6673989897Method and apparatus for reducing noise content in audio signals
6683970787Auditorium simulator and the like employing different pinna filters for headphone listening
6693962543Method and arrangement for controlling acoustical output of earphones in response to rotation of listener's head
6703952161Audio processor circuit for an FM-stereo radio receiver
6713944748Means and method of reducing interference in multi-channel reproduction of sounds
6723943293Stereo sound reproducing apparatus with noise reduction
6733941931Audio signal mixing system
6743939489Recording and reproducing apparatus
© 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017