Patents
Patents for H04S 1 - Two-channel systems (4,182)
08/2007
08/09/2007US20070183603 Generation of customised three dimensional sound effects for individuals
08/09/2007US20070183601 Method, device, encoder apparatus, decoder apparatus and audio system
08/08/2007EP1816895A2 Three-dimensional acoustic processor which uses linear predictive coefficients
08/08/2007EP1815716A1 Apparatus and method of processing multi-channel audio input signals to produce at least two channel output signals therefrom, and computer readable medium containing executable code to perform the method
08/08/2007EP1815715A1 Apparatus and method to generate virtual 3d sound using asymmetry and recording medium storing program to perform the method
08/08/2007CN101015230A Audio signal enhancement
08/07/2007US7254239 Sound system and method of sound reproduction
08/07/2007US7254238 Method and circuit for headset listening of an audio recording
08/02/2007US20070178830 Storage and playback device and method for using the same
08/02/2007DE19628292B4 Verfahren zum Codieren und Decodieren von Stereoaudiospektralwerten A method of encoding and decoding stereo audio spectral values
08/01/2007EP1814359A1 Video/audio recording apparatus and method, and video/audio reproducing apparatus and method
08/01/2007EP1814358A1 Audio signal processing device and audio signal processing method
08/01/2007EP1814357A1 Sound producing method, sound source circuit, electronic circuit using same, and electronic device
08/01/2007CN101010985A Stereo signal generating apparatus and stereo signal generating method
08/01/2007CN101009951A Reproducing circuit
07/2007
07/31/2007US7251333 Method and apparatus for creating a virtual third channel in a two-channel amplifier
07/31/2007US7251332 Portable audio devices
07/26/2007WO2007083937A2 Additional pinna and pinna-hollow filler for the head-related transfer function
07/26/2007US20070172086 Utilization of filtering effects in stereo headphone devices to enhance spatialization of source around a listener
07/26/2007US20070171944 Stereo coding and decoding methods and apparatus thereof
07/25/2007EP1810489A1 A method, a program product and telephone
07/19/2007WO2007080224A1 Decoding of binaural audio signals
07/19/2007US20070165878 Loudspeaker array audio signal supply apparartus
07/19/2007US20070165874 Method and apparatus for spatially enhancing the stereo image in sound reproduction and reinforcement systems
07/19/2007US20070165869 Support of a multichannel audio extension
07/19/2007CA2635024A1 Decoding of binaural audio signals
07/12/2007WO2003094413A3 Digital audio production device
07/12/2007US20070160237 Amplifier apparatus and acoustic system
07/10/2007US7242782 Audio signal processing circuit
07/10/2007US7242779 Methods and apparatus for sub-harmonic generation, stereo expansion and distortion
07/04/2007EP1804553A2 Sound image localization apparatus
07/03/2007CA2290518C Loudspeaker array for enlarged sweet spot
06/2007
06/27/2007EP1802082A1 Information terminal
06/27/2007CN1988738A Apparatus to remove a voice signal and method thereof
06/26/2007US7236837 Reproducing apparatus
06/26/2007US7236599 Generating separate analog audio programs from a digital link
06/26/2007CA2233521C Encoding method and apparatus, decoding method and apparatus and recording medium
06/21/2007US20070140502 Signal processing
06/21/2007DE19715498B4 Stereoklangbildverbesserungsvorrichtungen und -verfahren unter Verwendung von Tabellen Stereo image enhancement devices and procedures using tables
06/21/2007DE10148351B4 Verfahren und Vorrichtung zur Auswahl eines Klangalgorithmus Method and apparatus for selecting a sound algorithm
06/19/2007US7233833 Method of modifying low frequency components of a digital audio signal
06/14/2007US20070133949 In-vehicle information reproducing apparatus
06/13/2007EP1796081A2 Encoding apparatus, encoding method, and computer product
06/13/2007EP1795398A1 In-vehicle information reproducing apparatus
06/13/2007EP1794744A1 A system and a method of processing audio data, a program element and a computer-readable medium
06/13/2007EP1072089A4 Audio signal processing method and apparatus
06/13/2007CN1981558A Loudspeaker directivity control method and audio reproduction device
06/13/2007CN1980484A In-vehicle information reproducing apparatus
06/13/2007CN1321545C Echo effect output signal generator of earphone
06/07/2007US20070127738 Audio signal processing device and audio signal reproduction system
06/07/2007US20070127732 Distributed stereo system
06/07/2007US20070127729 Audio coding
06/06/2007EP1792520A1 Audio signal enhancement
06/06/2007CN1320844C Circuit and method for enhancing a stereo signal
06/05/2007US7227963 Audio signal processing apparatus
05/2007
05/30/2007CN1973331A Method and apparatus for control of personal digital media devices using a vehicle audio system
05/30/2007CN1973320A Stereo coding and decoding methods and apparatuses thereof
05/29/2007CA2228051C Acoustic correction apparatus
05/23/2007EP1787494A2 Personalized headphone virtualization
05/17/2007US20070110250 Transaural stereo device
05/17/2007US20070110249 Method of acoustic signal reproduction
05/16/2007EP1786239A1 Stereo signal generating apparatus and stereo signal generating method
05/15/2007CA2301062C A distributed stereo system
05/09/2007CN1960582A Signal processing apparatus and method
05/03/2007WO2007048900A1 Hrtfs individualisation by a finite element modelling coupled with a revise model
05/03/2007WO2007004147A3 Stereo dipole reproduction system with tilt compensation.
05/03/2007US20070098205 Headrest surround channel electroacoustical transducing
05/03/2007US20070098180 Speaker-characteristic compensation method for mobile terminal device
04/2007
04/26/2007WO2007046288A1 Localization control device, localization control method, localization control program, and computer-readable recording medium
04/26/2007WO2007045016A1 Spatial audio simulation
04/26/2007US20070092100 Headrest surround channel electroacoustical transducing
04/26/2007DE10228723B4 Verfahren zur Bewertung der Empfangsqualität eines Stereorundfunkempfängers und Stereorundfunkempfänger Method for evaluating the reception quality of a stereo radio receiver and stereo radio receiver
04/25/2007EP1777991A2 Sound measuring apparatus and method, and audio signal processing apparatus
04/25/2007EP1777989A2 Frequency-characteristic-acquisition device, frequency-characteristic-acquisition method, and sound-signal-processing device
04/25/2007CN1954641A Audio system and method for stereo enhancement of decoded stereo signals
04/25/2007CN1954362A Audio signal encoder and audio signal decoder
04/24/2007US7210160 Audio/video programming and charging system and method
04/24/2007US7209564 Generation of customized three dimensional sound effects for individuals
04/18/2007EP1775995A1 Sound reproducing system and automobile using such sound reproducing system
04/18/2007EP1775994A1 Sound image localization device
04/18/2007CN2891565Y Mixer
04/17/2007US7206414 Method and device for selecting a sound algorithm
04/12/2007DE19936346B4 Ein audiosignalverarbeitendes Gerät An audio signal processing apparatus
04/11/2007EP1621047B1 Audio signal generation
04/11/2007CN1947172A Method, device, encoder apparatus, decoder apparatus and frequency system
04/11/2007CN1946985A Sound information output device and sound information output method
04/11/2007CN1946251A Frequency modulated transmitting apparatus
04/10/2007US7203327 Apparatus for and method of processing audio signal
04/10/2007US7203320 Sub-harmonic generator and stereo expansion processor
04/04/2007CN1943273A Sound image localization controller
04/04/2007CN1942962A Audio reproducing apparatus, audio reproducing method, and program
04/04/2007CN1941073A Apparatus and method of canceling vocal component in an audio signal
04/04/2007CN1308915C System for improving sound legibility
04/03/2007US7200357 Automotive storage and playback device and method for using the same
03/2007
03/29/2007WO2007035072A1 Apparatus and method to cancel crosstalk and stereo sound generation system using the same
03/29/2007WO2007035055A1 Apparatus and method of reproduction virtual sound of two channels
03/29/2007WO2007034568A1 Sound reproduction system, and stereophonic microphone and stereophonic reproduction device that use the same
03/29/2007DE102005035643A1 Audio data play-back device, is connected with network such as wireless local area network over network connection, and commands over network data link, where audio data are transmitted over network/internet to memory of play back device
03/28/2007EP1768451A1 Acoustic signal encoding device and acoustic signal decoding device
03/28/2007EP1767057A2 A system for and a method of providing improved intelligibility of television audio for hearing impaired
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