| Patents for H04S 3 - Systems employing more than two channels, e.g. quadraphonic (4,597) |
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| 05/07/2009 | US20090116652 Focusing on a Portion of an Audio Scene for an Audio Signal |
| 05/06/2009 | CN101426171A Sound field control method and system |
| 05/05/2009 | US7529376 Directional speaker control system |
| 04/29/2009 | CN100484259C 紧凑的环绕声系统 Compact surround sound system |
| 04/28/2009 | US7526505 Methods and systems for synchronizing visualizations with audio streams |
| 04/23/2009 | WO2009050903A1 Audio mixing device |
| 04/22/2009 | EP1946300A4 Method and apparatus for signal processing |
| 04/22/2009 | EP1946298A4 Method and apparatus for signal processing |
| 04/22/2009 | CN101415143A Multimedia audio system with audio digital interface |
| 04/22/2009 | CN100481234C Voice coding device and decoding device, optical recording medium and voice transmission method |
| 04/21/2009 | US7522733 Systems and methods of spatial image enhancement of a sound source |
| 04/16/2009 | WO2009046909A1 Method and apparatus for generating a binaural audio signal |
| 04/16/2009 | CA2701360A1 Method and apparatus for generating a binaural audio signal |
| 04/15/2009 | CN101411214A Method and arrangement for a decoder for multi-channel surround sound |
| 04/15/2009 | CN101411063A Filter adaptive frequency resolution |
| 04/15/2009 | CN101410890A Reduced number of channels decoding |
| 04/15/2009 | CN101410889A Controlling spatial audio coding parameters as a function of auditory events |
| 04/14/2009 | US7519188 Electroacoustical transducing |
| 04/14/2009 | US7519187 Array speaker system |
| 04/09/2009 | US20090094519 System and method for enhanced streaming audio |
| 04/09/2009 | DE102006030923B4 Vorrichtung und Verfahren zur interaktiven Präsentation virtueller Realität Apparatus and method for interactive virtual reality presentation |
| 04/08/2009 | EP2046076A1 Multi-channel audio treatment system and method |
| 04/08/2009 | CN101406074A Generation of spatial downmixes from parametric representations of multi channel signals |
| 04/08/2009 | CN101406073A Enhanced method for signal shaping in multi-channel audio reconstruction |
| 04/07/2009 | US7515719 Method and apparatus to create a sound field |
| 04/02/2009 | DE19705751B4 Verfahren und Gerät zur Übertragung eines Signals Method and apparatus for transmitting a signal |
| 04/02/2009 | DE102007059597A1 Eine Vorrichtung und ein Verfahren zur Ermittlung eines Komponentensignals in hoher Genauigkeit An apparatus and a method for determining a component signal in high accuracy |
| 04/01/2009 | CN101401455A Binaural rendering using subband filters |
| 03/31/2009 | US7512244 Motor vehicle sound system |
| 03/26/2009 | WO2009038512A1 Joint enhancement of multi-channel audio |
| 03/26/2009 | WO2009036883A1 Apparatus and method for determining a component signal with great accuracy |
| 03/25/2009 | EP2038880A1 Dynamic decoding of binaural audio signals |
| 03/19/2009 | WO2009034219A1 Method and system for wireless real-time collection of multichannel digital audio |
| 03/19/2009 | US20090074213 Apparatus and method for down converting multichannel programs to dual channel programs using a smart coefficient generator |
| 03/18/2009 | CN101390443A Audio encoding and decoding |
| 03/12/2009 | DE102007034723A1 Spatial sound pattern producing method, involves implementing automatic production of spatial acoustic pattern by modulation of sound channels of sound sources, and implementing automatic modulation of sound channels |
| 03/05/2009 | US20090060248 Earphone structure with a composite sound field |
| 03/05/2009 | US20090060238 Earphone structure with a composite sound field |
| 03/05/2009 | US20090060210 Circuit and program for processing multichannel audio signals and apparatus for reproducing same |
| 03/05/2009 | US20090060204 Audio Spatial Environment Engine |
| 03/04/2009 | EP2031904A2 Audio signal transmitting apparatus, audio signal receiving apparatus, audio signal transmission system, audio signal transmission method, and program |
| 03/04/2009 | EP2031903A2 Audio signal transmitting apparatus, audio signal receiving apparatus, audio signal transmission system, audio signal transmission method, and program |
| 03/04/2009 | EP2031418A1 Tracking system using RFID (radio frequency identification) technology |
| 02/24/2009 | US7496417 Audio processing system for use in multi-channel audio chip |
| 02/19/2009 | WO2009022278A1 An audio reproduction system comprising narrow and wide directivity loudspeakers |
| 02/19/2009 | WO2009021966A1 Enhancing audio with remixing capability |
| 02/17/2009 | US7492915 Dynamic sound source and listener position based audio rendering |
| 02/17/2009 | US7492913 Location aware directed audio |
| 02/17/2009 | US7492912 Multi-channel speaker system and a connection system thereof |
| 02/17/2009 | US7492907 Multi-channel audio enhancement system for use in recording and playback and methods for providing same |
| 02/12/2009 | WO2009004268A3 Method for the sound processing of a stereophonic signal inside a motor vehicle and motor vehicle implementing said method |
| 02/12/2009 | US20090041256 Preserving matrix surround information in encoded audio/video system and method |
| 02/11/2009 | CN101364922A Data communication system |
| 02/10/2009 | US7489784 Automatic sound field correcting device and computer program therefor |
| 02/05/2009 | DE102007060209A1 Auf Fractional-Delay-Filter basierte Beamforming-Vorrichtung, die Nachfiltern verwendet On fractional delay filter based beamforming apparatus using postfiltering |
| 02/04/2009 | CN101361405A Method and system for equalizing a loudspeaker in a room |
| 02/04/2009 | CN101361114A Apparatus for processing media signal and method thereof |
| 02/04/2009 | CN100459817C Audio apparatus and its reproduction program |
| 02/04/2009 | CN100459685C Information processing apparatus, imaging apparatus and information processing method |
| 02/04/2009 | CN100458957C Data recording device and method, and data playing device and method |
| 02/03/2009 | CA2446822C Data-driven software architecture for digital sound processing and equalization |
| 01/29/2009 | US20090028360 Multichannel Downmixing Device |
| 01/28/2009 | EP0760197B1 Three-dimensional virtual audio display employing reduced complexity imaging filters |
| 01/28/2009 | CN101356571A Temporal and spatial shaping of multi-channel audio signals |
| 01/22/2009 | WO2009012499A1 System and method for directionally radiating sound |
| 01/21/2009 | EP2016800A2 Method and system for wireless real-time transmission of multichannel audio or video data |
| 01/21/2009 | EP1844627B1 Device and method for simulating an electromagnetic field synthesis system |
| 01/21/2009 | EP1829424B1 Temporal envelope shaping of decorrelated signals |
| 01/21/2009 | CN100454665C connection parts for electrical cable |
| 01/15/2009 | WO2009007639A1 Quantification after linear conversion combining audio signals of a sound scene, and related encoder |
| 01/15/2009 | DE102005003431B4 Anordnung zum Wiedergeben von binauralen Signalen (Kunstkopfsignalen) durch mehrere Lautsprecher An apparatus for reproducing binaural signals (artificial head signals) through multiple speakers |
| 01/14/2009 | EP2015292A1 Efficient and scalable parametric stereo coding for low bitrate audio coding applications |
| 01/13/2009 | US7477750 Signal delay time measurement device and computer program therefor |
| 01/08/2009 | WO2009004352A1 Sound reproduction systems |
| 01/08/2009 | WO2009004268A2 Method for the sound processing of a stereophonic signal inside a motor vehicle and motor vehicle implementing said method |
| 01/08/2009 | DE202008012480U1 Wärmeverbrauchs-Einrichtung mit Tonabgabefunktion Heat consumption device with Tonabgabefunktion |
| 01/07/2009 | EP1371265B1 Signal processing apparatus, signal processing method, program and recording medium |
| 01/07/2009 | CN201178493Y Matrix implementing double sound channel analogue audio switching transmission by single path |
| 01/07/2009 | CN101341793A Method to generate multi-channel audio signals from stereo signals |
| 01/07/2009 | CN101341792A Apparatus and method for integrating 3 output acoustic channels using 2 input acoustic channels |
| 01/06/2009 | US7474753 Sound field control apparatus, signal processing apparatus, sound field control program, and signal processing program |
| 01/01/2009 | US20090003612 Compatible Multi-Channel Coding/Decoding |
| 12/31/2008 | WO2009001292A1 A method of merging at least two input object-oriented audio parameter streams into an output object-oriented audio parameter stream |
| 12/31/2008 | WO2008135310A3 Early reflection method for enhanced externalization |
| 12/31/2008 | EP1507441B1 Audio apparatus and its reproduction program |
| 12/31/2008 | CN101336563A Low-complexity audio matrix decoder |
| 12/30/2008 | US7471797 Networked sound masking system with centralized sound masking generation |
| 12/25/2008 | US20080319564 Sound processing system for configuration of audio signals in a vehicle |
| 12/25/2008 | US20080317257 Sound processing system for configuration of audio signals in a vehicle |
| 12/25/2008 | US20080317114 Reciprocal Index Lookup for BTSC Compatible Coefficients |
| 12/24/2008 | WO2007076863A8 Method and system for equalizing a loudspeaker in a room |
| 12/24/2008 | EP2006856A1 Audio playing apparatus and audio playing method |
| 12/24/2008 | EP2005787A2 Audio signal processing |
| 12/18/2008 | WO2008153944A1 Hybrid derivation of surround sound audio channels by controllably combining ambience and matrix-decoded signal components |
| 12/17/2008 | EP1360874B1 Sound system and method of sound reproduction |
| 12/16/2008 | US7467021 System and method for enhanced streaming audio |
| 12/10/2008 | EP2000002A2 Method and device for efficient binaural sound spatialization in the transformed domain |
| 12/10/2008 | EP2000001A2 Method and arrangement for a decoder for multi-channel surround sound |
| 12/10/2008 | EP1999999A1 Generation of spatial downmixes from parametric representations of multi channel signals |
| 12/10/2008 | EP1999997A1 Enhanced method for signal shaping in multi-channel audio reconstruction |