| Patents for H04S 5 - Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation (2,758) |
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| 07/07/2005 | US20050147261 Head relational transfer function virtualizer |
| 07/06/2005 | EP1551205A1 Head relational transfer function virtualizer |
| 07/06/2005 | CN1636423A Multichannel echo canceller system using active audio matrix coefficients |
| 07/06/2005 | CN1636421A Multi-channel stereo converter for deriving a stereo surround and/or audio centre signal |
| 07/06/2005 | CN1636420A 紧凑的环绕声系统 Compact surround sound system |
| 06/30/2005 | WO2005059901A1 Constrained filter encoding of polyphonic signals |
| 06/30/2005 | US20050141723 3D audio signal processing system using rigid sphere and method thereof |
| 06/29/2005 | EP1547439A2 Bass management systems |
| 06/29/2005 | EP1547437A2 Sound reproduction system, program and data carrier |
| 06/29/2005 | EP1547436A2 Generation of a sound signal |
| 06/28/2005 | US6912501 Use of voice-to-remaining audio (VRA) in consumer applications |
| 06/23/2005 | US20050137859 Sound characteristic measuring device, automatic sound field correcting device, sound characteristic measuring method and automatic sound field correcting method |
| 06/23/2005 | US20050135643 Apparatus and method of reproducing virtual sound |
| 06/23/2005 | US20050135631 Automatic sound field correcting device and computer program therefor |
| 06/23/2005 | US20050135629 Apparatus and method for generating three-dimensional stereo sound in a mobile communication system |
| 06/22/2005 | EP1545155A2 Automatic sound field correcting device and computer program therefor |
| 06/22/2005 | EP1545154A2 A virtual surround sound device |
| 06/22/2005 | CN1630434A Apparatus and method of reproducing virtual sound |
| 06/16/2005 | WO2005034574B1 Device for 3-dimensional acoustic reproduction using headphones |
| 06/16/2005 | US20050129251 Method and device for selecting a sound algorithm |
| 06/16/2005 | US20050129249 Method for improving spatial perception in virtual surround |
| 06/16/2005 | US20050129248 Systems and methods of spatial image enhancement of a sound source |
| 06/15/2005 | EP1542502A2 Headphone with surround-sound effect |
| 06/15/2005 | CN1627862A Acoustics system of multiple loudspeakers and automatic control method |
| 06/08/2005 | CN1625920A Audio apparatus and its reproduction program |
| 06/08/2005 | CN1625302A Sound field reproduction apparatus and sound field space reproduction system |
| 06/02/2005 | US20050117753 Sound field reproduction apparatus and sound field space reproduction system |
| 05/31/2005 | US6901148 Automatic sound field correcting device |
| 05/26/2005 | CA2545268A1 Audio signal processing system and method |
| 05/25/2005 | EP1534047A2 Sound characteristic measuring device and method, automatic sound field correcting device and method |
| 05/25/2005 | EP1532734A2 Acoustical virtual reality engine and advanced techniques for enhancing delivered sound |
| 05/25/2005 | CN1620196A Sound reproducing apparatus and sound reproducing method |
| 05/19/2005 | US20050105742 Method and apparatus for emulating audio effect |
| 05/04/2005 | EP1527655A2 Audio channel spatial translation |
| 05/03/2005 | US6888058 Electronic musical instrument |
| 04/28/2005 | US20050089182 Compact surround-sound system |
| 04/28/2005 | US20050089174 Stereophonic Device for Headphones and Audio Signal Processing Program |
| 04/20/2005 | EP1523862A1 Audio coding |
| 04/20/2005 | CN1607865A Acoustic apparatus and acoustic setting method |
| 04/19/2005 | US6882733 Surround headphone output signal generator |
| 04/19/2005 | US6882731 Multi-channel audio converter |
| 04/14/2005 | WO2005034574A1 Device for 3-dimensional acoustic reproduction using headphones |
| 04/14/2005 | US20050078839 Sound reproducing apparatus and sound reproducing method |
| 04/13/2005 | EP1522209A2 A stereo signal processing apparatus |
| 04/07/2005 | US20050074135 Audio device and audio processing method |
| 04/06/2005 | CN1605226A Method for improving spatial perception in virtual surround |
| 04/06/2005 | CN1604689A Method and device for reproducing a binaural output signal generated from a monaural input signal |
| 03/31/2005 | US20050070243 Multichannel echo canceller system using active audio matrix coefficients |
| 03/31/2005 | US20050069140 Method and device for reproducing a binaural output signal generated from a monaural input signal |
| 03/30/2005 | EP1519628A2 Method and device for the reproduction of a binaural output signal which is derived from a monaural input signal |
| 03/30/2005 | EP1519627A2 Sound reproducing apparatus and sound reproducing method |
| 03/24/2005 | US20050063551 Multi-channel surround sound expansion method |
| 03/22/2005 | US6870933 Stereo audio processing device for deriving auxiliary audio signals, such as direction sensing and center signals |
| 03/17/2005 | WO2005025270A1 Audio image control device design tool and audio image control device |
| 03/17/2005 | US20050058304 Cue-based audio coding/decoding |
| 03/16/2005 | CN1596038A Audio device and audio processing method |
| 03/16/2005 | CN1596037A Signal processing method for three-loudspeaker virtual 5.1 channel surround sound |
| 03/16/2005 | CN1595521A Method and apparatus for recording and reproducing digital information recording medium |
| 03/10/2005 | WO2005004537A3 Bass management systems |
| 03/10/2005 | WO2005002278A3 Multi-channel sound processing systems |
| 03/10/2005 | US20050053249 Apparatus and method for rendering audio information to virtualize speakers in an audio system |
| 03/10/2005 | US20050053242 Efficient and scalable parametric stereo coding for low bitrate applications |
| 02/23/2005 | CN1586091A Discrete surround audio system for home and automotive listening |
| 02/17/2005 | WO2005015956A1 Voice reproducing method and reproducer using line array speaker unit |
| 02/16/2005 | EP1507441A1 Audio apparatus and its reproduction program |
| 02/16/2005 | EP1507439A2 Apparatus and method for controlling speakers |
| 02/10/2005 | DE10330808A1 Konferenzeinrichtung und Verfahren zur Mehrpunktkommunikation Conference facilities and methods for multi-point communication |
| 02/09/2005 | EP1504549A2 Discrete surround audio system for home and automotive listening |
| 02/09/2005 | CN1578542A Conference device and method for multi-point communication |
| 02/08/2005 | US6853869 Method and apparatus for generating surround-sound data |
| 02/08/2005 | US6853732 Center channel enhancement of virtual sound images |
| 02/02/2005 | EP1502361A2 Multi-channel downmixing device |
| 02/02/2005 | CN1575621A Method of decoding two-channel matrix encoded audio to reconstruct multichannel audio |
| 02/02/2005 | CN1575044A Multichannel audio system, and head unit and slave unit used for the same |
| 02/02/2005 | CN1572577A Sound system with equalization for a convertible automobile |
| 02/02/2005 | CN1187906C Method and device for producing a virtual speaker having a certain distance from sound source |
| 02/01/2005 | US6850622 Sound field correction circuit |
| 01/27/2005 | WO2005009078A1 An audio stereo processing method, device and system |
| 01/27/2005 | US20050018860 Sound processing system for configuration of audio signals in a vehicle |
| 01/27/2005 | US20050018039 Conference device and method for multi-point communication |
| 01/27/2005 | CA2531290A1 An audio stereo processing method, device and system |
| 01/26/2005 | EP1501334A1 Transmission characteristic measuring device, transmission characteristic measuring method, and amplifier |
| 01/26/2005 | EP1500082A1 Signal synthesizing |
| 01/26/2005 | EP1499406A1 Method and apparatus for data receiver and controller |
| 01/26/2005 | CN1571584A Controlling fading and surround signal level |
| 01/26/2005 | CN1571583A Multichannel active matrix sound reproduction with maximum lateral separation |
| 01/20/2005 | DE102004025653A1 Multikanalaudiosystem und Haupteinheit und Slave-Einheit zur Benutzung mit demselben Multi-channel audio system and the main unit and a slave unit for use with the same |
| 01/13/2005 | WO2005004537A2 Bass management systems |
| 01/12/2005 | EP1496680A1 Conference system and method applying HRTF-filter |
| 01/12/2005 | CN1564634A 3D8-C stereo audio amplifier system |
| 01/12/2005 | CN1564633A 3D8-E stereo audio amplifier system |
| 01/12/2005 | CN1564632A 3D8-B stereo audio amplifier system |
| 01/12/2005 | CN1564631A 3D8-D stereo audio amplifier system |
| 01/11/2005 | US6842527 Dynamic allocation of power supplied by a power supply and frequency agile spectral filtering of signals |
| 01/11/2005 | CA2406706C Discrete multichannel audio with a backward compatible mix |
| 01/06/2005 | WO2005002278A2 Multi-channel sound processing systems |
| 01/05/2005 | CN2669532Y Television receiver with wireless audio box |
| 01/05/2005 | CN1561144A 3D8-X stero amplifying system |
| 12/29/2004 | CN1558699A A method and system for realizing wireless home theater |
| 12/23/2004 | US20040258259 Acoustic apparatus and acoustic setting method |