| Patents for H04S 3 - Systems employing more than two channels, e.g. quadraphonic (4,597) |
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| 05/19/2004 | CN1497588A Voice coding device and decoding device, optical recording medium and voice transmission method |
| 05/19/2004 | CN1497587A Voice coding device and decoding device, optical recording medium and voice transmission method |
| 05/19/2004 | CN1497586A Voice coding device and decoding device, optical recording medium and voice transmission method |
| 05/19/2004 | CN1497585A Voice coding device and decoding device, optical recording medium and voice transmission method |
| 05/13/2004 | WO2004040939A2 Method for simulating a movement by means of an acoustic reproduction device, and sound reproduction arrangement therefor |
| 05/13/2004 | US20040091118 5-2-5 Matrix encoder and decoder system |
| 05/13/2004 | DE10248754A1 Verfahren zum Vortäuschen einer Bewegung mittels einer akustischen Wiedergabeeinrichtung und Schallwiedergabeanordnung dafür Method for faking motion by means of an acoustic reproduction equipment and sound reproduction device for |
| 05/12/2004 | CN1495776A Voice coding device and decoding devie, optical recording medium and voice transmission method |
| 05/12/2004 | CN1495705A Multichannel vocoder |
| 05/12/2004 | CN1149900C Audio signal processor and audio device |
| 05/06/2004 | WO2004039127A2 Embedded data signaling |
| 05/06/2004 | WO2004039123A1 Dynamic binaural sound capture and reproduction |
| 05/06/2004 | US20040086132 Audio apparatus |
| 05/06/2004 | US20040086130 Multi-channel sound processing systems |
| 05/06/2004 | US20040086129 Method of reproducing multichannel audio sound via several real and at least one virtual speaker |
| 05/06/2004 | EP1416769A1 Object-based three-dimensional audio system and method of controlling the same |
| 05/06/2004 | EP1416768A2 Audio apparatus |
| 05/06/2004 | EP1168865B1 Wcdma mobile device for transmitting multichannel sounds |
| 05/06/2004 | CA2502585A1 Dynamic binaural sound capture and reproduction |
| 05/05/2004 | CN1494812A Headphone-use stereophonic device and voice signal processing program |
| 05/05/2004 | CN1494356A Multi audio track active matrix audio replay having maximum lateral dissociation |
| 05/05/2004 | CN1148995C Audible signal processing circuit, surrounding audible signal processing apparatus and method |
| 05/05/2004 | CN1148974C 压缩码译码设备 Compressed code decoding device |
| 04/29/2004 | WO2004036955A1 Method for generating and consuming 3d audio scene with extended spatiality of sound source |
| 04/29/2004 | WO2004036549A1 Signal filtering |
| 04/28/2004 | EP1414273A1 Embedded data signaling |
| 04/28/2004 | CN1148106C Decoding device and method for compressed multiple-track audio bit element flow |
| 04/22/2004 | WO2004008633A3 A stereo signal processing apparatus |
| 04/22/2004 | US20040076301 Dynamic binaural sound capture and reproduction |
| 04/21/2004 | EP1410687A1 Efficient and scalable parametric stereo coding for low bitrate applications |
| 04/21/2004 | EP1410686A2 Audio channel translation |
| 04/21/2004 | EP1410685A2 Multichannel sound editing system |
| 04/15/2004 | WO2004032351A1 System and method for integral transference of acoustical events |
| 04/15/2004 | US20040071059 Multi-channel reproducing apparatus and multi-channel reproducing loudspeaker apparatus |
| 04/15/2004 | US20040070523 Matrix improvements to lossless encoding and decoding |
| 04/15/2004 | CA2499754A1 System and method for integral transference of acoustical events |
| 04/14/2004 | EP1040466B1 Surround signal processing apparatus and method |
| 04/13/2004 | US6721425 Sound signal mixing |
| 04/08/2004 | WO2004030404A1 5.1channel digital surround earphone |
| 04/08/2004 | WO2003073791A3 Method and device for control of a unit for reproduction of an acoustic field |
| 04/06/2004 | US6718042 Dithered binaural system |
| 04/01/2004 | US20040062402 Audio reproduction apparatus |
| 04/01/2004 | US20040062401 Audio channel translation |
| 03/31/2004 | EP1402755A2 Method and apparatus to create a sound field |
| 03/31/2004 | EP1135969B1 Digital wireless loudspeaker system |
| 03/31/2004 | EP0820663B1 7-channel transmission, compatible with 5-channel transmission and 2-channel transmission |
| 03/31/2004 | CN1486120A 5.1 channel digital circulating earphone |
| 03/30/2004 | US6714825 Multi-channel audio reproducing device |
| 03/25/2004 | WO2003094369A3 Multi-channel downmixing device |
| 03/25/2004 | WO2002063925A8 Audio channel translation |
| 03/23/2004 | US6711270 Audio reproducing apparatus |
| 03/23/2004 | US6711266 Surround sound channel encoding and decoding |
| 03/17/2004 | CN1142705C Low bit-rate spatial coding method and system, and decoder and decoding method for the system |
| 03/17/2004 | CN1142704C Acoustic-image positioning treatment apparatus and method thereof |
| 03/16/2004 | US6707918 Formulation of complex room impulse responses from 3-D audio information |
| 03/11/2004 | WO2003094396A3 Discrete surround audio system for home and automotive listening |
| 03/11/2004 | US20040049304 Method and apparatus for digital signal communication between equalizer and surround sound systems |
| 03/10/2004 | EP1396173A2 Method of generating a left modified and a right modified audio signal for a stereo system |
| 03/04/2004 | WO2004019656A2 Audio channel spatial translation |
| 03/04/2004 | WO2004001699A3 Method for enhancement of listener perception of sound spatialization |
| 03/04/2004 | CA2494454A1 Audio channel spatial translation |
| 03/03/2004 | EP1395081A1 Vehicle-mounted stereophonic sound field reproducer |
| 03/03/2004 | EP1393592A2 Data-driven software architecture for digital sound processing and equalization |
| 03/03/2004 | CN1141007C 3D sound regeneration equipment for many listeners and its method |
| 02/26/2004 | US20040037440 Dynamic power sharing in a multi-channel sound system |
| 02/26/2004 | US20040037433 Multi-channel wireless professional audio system |
| 02/26/2004 | US20040037426 Apparatus for converting to six-channel outputs from two-channel |
| 02/25/2004 | CN1477903A Multichannel audio-frequecy system and electronic equipment |
| 02/25/2004 | CN1477736A Wireless multichannel professional acoustic system |
| 02/25/2004 | CN1477731A connection parts for electrical cable |
| 02/24/2004 | US6697491 5-2-5 matrix encoder and decoder system |
| 02/19/2004 | WO2002063925A3 Audio channel translation |
| 02/19/2004 | US20040032960 Multichannel downmixing device |
| 02/18/2004 | EP1389892A2 Sound processing system using distortion limiting techniques |
| 02/18/2004 | CN1476736A Remote control apparatus and receiver and audio system |
| 02/18/2004 | CN1139301C Post-amplification stereophonic to surround sound decoding circuit |
| 02/17/2004 | US6694033 Reproduction of spatialized audio |
| 02/17/2004 | US6694027 Discrete multi-channel/5-2-5 matrix system |
| 02/12/2004 | WO2004013853A1 Information recoding medium, information recording device and method, information reproduction device and method, information recording/reproduction device and method, computer program, and data structure |
| 02/11/2004 | CN1475095A Audio reproducing device |
| 02/10/2004 | US6690799 Stereo signal processing apparatus |
| 02/04/2004 | EP1387601A2 Sound processing system with adaptive mixing of active matrix decoding and passive matrix processing |
| 02/04/2004 | EP1386415A1 Parametric virtual speaker and surround-sound system |
| 02/04/2004 | CN1473451A Portable multi-channel amplifier |
| 02/04/2004 | CN1137603C Play-back two-channel system for providing holophonic reproduction of sounds |
| 02/04/2004 | CN1137546C Device and method for encoding digital data signals |
| 02/03/2004 | US6687378 Vehicle-mounted acoustic system |
| 01/31/2004 | CA2436388A1 Sound processing system using distortion limiting techniques |
| 01/28/2004 | CN1471769A Network system and output device used in this system |
| 01/28/2004 | CN1471340A Multi acoustic source circulating audio-frequency device |
| 01/28/2004 | CN1136760C Method and appartus for error masking in multi-channel audio signals |
| 01/27/2004 | US6684060 Digital wireless premises audio system and method of operation thereof |
| 01/22/2004 | WO2004008806A1 Audio coding |
| 01/22/2004 | WO2004008805A1 Audio coding |
| 01/22/2004 | WO2004008633A2 A stereo signal processing apparatus |
| 01/22/2004 | WO2003061344A3 Multichannel echo canceller system using active audio matrix coefficients |
| 01/22/2004 | US20040013271 Method and system for recording and reproduction of binaural sound |
| 01/21/2004 | CN1469684A Method and apparatus for generating multi-sound channel sound |
| 01/20/2004 | US6681018 Audio signal processor and audio device |
| 01/15/2004 | US20040010727 Network system and output device used in this system |