| Patents for H04S 1 - Two-channel systems (4,182) |
|---|
| 02/27/2001 | US6195434 Apparatus for creating 3D audio imaging over headphones using binaural synthesis |
| 02/22/2001 | WO2001012059A1 Method and apparatus of enhancing learning capacity |
| 02/22/2001 | DE10040660A1 Multifunction hearing aid for use with external three-dimensional sound sources has at least two receiving units and mixes received signals |
| 02/21/2001 | EP1076928A1 User adjustable volume control that accommodates hearing |
| 02/14/2001 | CN1284195A Surround signal processing appts and method |
| 01/31/2001 | EP1073315A2 Acoustic crosstalk cancellation system |
| 01/31/2001 | EP1072089A1 Audio signal processing method and apparatus |
| 01/31/2001 | CN1282444A Method and system for processing virtual acoustic environment |
| 01/30/2001 | US6181800 System and method for interactive approximation of a head transfer function |
| 01/29/2001 | CA2314374A1 Acoustic crosstalk cancellation system |
| 01/25/2001 | WO2001006813A1 Sound adder and sound adding method |
| 01/24/2001 | EP1070438A1 Low bit-rate spatial coding method and system |
| 01/23/2001 | US6178247 Headphone apparatus |
| 01/18/2001 | WO2001005187A1 Dynamic decorrelator for audio signals |
| 01/16/2001 | US6175631 Method and apparatus for decorrelating audio signals |
| 01/02/2001 | US6169812 Point source speaker system |
| 01/02/2001 | US6169806 Computer, computer system and desk-top theater system |
| 01/02/2001 | CA2048686C Audio signal reproducing apparatus |
| 12/28/2000 | WO2000079838A2 Stereophonic signal processing apparatus |
| 12/28/2000 | WO2000079837A1 Precise amplitude correction circuit |
| 12/26/2000 | CA2122577C Process for simultaneous transmission of signals from n signal sources |
| 12/21/2000 | DE19925843A1 Method for generating transmission medium for acoustic music signal, involves using two or more signal components and time adjuster |
| 12/20/2000 | EP1061774A2 Audio system having a sound field processor |
| 12/20/2000 | EP1061773A2 Audio system, its control method and storage medium |
| 12/20/2000 | EP1061654A1 Detection of noise in a frequency demodulated fm audio broadcast signal |
| 12/20/2000 | CN1277532A Multiple-channel audio frequency replaying apparatus and method |
| 12/20/2000 | CN1277530A Stereo signal processing device |
| 12/14/2000 | DE10028557A1 Stereo audio unit for cars, has impulse response derived correction of stereo image |
| 12/13/2000 | EP0903055A4 Method and apparatus for localization of an acoustic source |
| 12/13/2000 | CN1276696A Intensifying system for dual-channel sound |
| 12/07/2000 | WO2000074439A1 Stereo acoustic image amplifier |
| 12/06/2000 | EP1058481A2 A method of modifying one or more original head related transfer functions |
| 12/06/2000 | EP1058395A2 Device for receiving stereo broadcast signals |
| 12/05/2000 | US6157725 Sound system for a motor vehicle and method for defining a functional scope of a sound system |
| 12/05/2000 | US6157724 Apparatus having loudspeakers concurrently producing music sound and reflection sound |
| 11/29/2000 | CN1275301A Audio signal processor and audio device |
| 11/28/2000 | US6154553 Sound bubble structures for sound reproducing arrays |
| 11/28/2000 | US6154545 Method and apparatus for two channels of sound having directional cues |
| 11/28/2000 | US6154161 Integrated audio mixer |
| 11/23/2000 | WO2000070913A2 Centralizing of a spatially expanded stereophonic audio image |
| 11/22/2000 | EP1054574A1 Sound image localizing device |
| 11/15/2000 | EP1052877A2 Vehicle-carried sound reproduction apparatus |
| 11/15/2000 | CN1273192A Playback device mounted on vehicle |
| 11/14/2000 | US6148243 Sound Processing method and system |
| 11/08/2000 | EP1050113A1 Method and apparatus for estimation of coupling parameters in a transform coder for high quality audio |
| 11/07/2000 | US6144747 Head mounted surround sound system |
| 10/31/2000 | US6141646 Digital sound processor for processing multiple standard sound signals and capable of generating additional audio signals |
| 10/25/2000 | EP1046239A1 Method and apparatus for phase estimation in a transform coder for high quality audio |
| 10/17/2000 | CA2260222C Coding and decoding of audio signals by using intensity stereo and prediction |
| 10/17/2000 | CA2260090C Method of coding and decoding stereo audio spectral values |
| 10/11/2000 | EP1042866A1 Method and system for driving speakers with a 90 degree phase shift |
| 10/10/2000 | US6130948 Sound field processor with sound field expanding apparatus |
| 10/05/2000 | WO2000059265A1 Matrix surround decoder/virtualizer |
| 10/04/2000 | EP1040466A2 Surround signal processing apparatus and method |
| 10/03/2000 | US6128395 Loudspeaker system with controlled directional sensitivity |
| 09/28/2000 | WO2000057673A1 Band stop filter |
| 09/21/2000 | WO2000022876A9 Point source speaker system |
| 09/19/2000 | US6122382 System for processing audio surround signal |
| 09/14/2000 | WO2000054554A1 Audio/video system and method enabling a user to select different views and sounds associated with an event |
| 09/14/2000 | CA2636037A1 Video/audio system and method enabling a user to select different views and sounds associated with an event |
| 09/12/2000 | US6118875 Binaural synthesis, head-related transfer functions, and uses thereof |
| 08/31/2000 | WO2000015003A3 Low-frequency audio enhancement system |
| 08/29/2000 | US6111958 Audio spatial enhancement apparatus and methods |
| 08/29/2000 | CA2170470C Low frequency audio conversion circuit |
| 08/22/2000 | US6108584 Multichannel digital audio decoding method and apparatus |
| 08/22/2000 | US6108430 Headphone apparatus |
| 08/22/2000 | US6108427 Method and apparatus for eliminating audio feedback |
| 08/17/2000 | DE19905868A1 Verfahren zur Verarbeitung eines Datenstromes sowie Dekoder und Verwendung A method for processing a data stream and decoder and use |
| 08/16/2000 | EP1028539A2 Method for transcoding an audio data stream |
| 08/16/2000 | CN1055601C Stereophonic reproduction method and apparatus |
| 08/09/2000 | EP1025743A1 Utilisation of filtering effects in stereo headphone devices to enhance spatialization of source around a listener |
| 08/03/2000 | WO2000045619A1 Virtual sound source device and acoustic device comprising the same |
| 08/02/2000 | EP1024679A2 Method for decoding distorted radio signals in multichannel audio signals |
| 08/02/2000 | EP1023716A1 A method and a system for processing a virtual acoustic environment |
| 07/25/2000 | US6094638 Audio signal processing apparatus and audio signal processing method for multi channel audio reproduction system |
| 07/25/2000 | US6094488 Dynamic computation of the ratio between two bitstreams representing slowly varying quantities and Dolby Pro Logic decoder |
| 07/20/2000 | WO2000042819A1 A stereophonic spatial expansion circuit with tonal compensation and active matrixing |
| 07/20/2000 | WO2000042818A1 A stereophonic spatial expansion circuit with tonal compensation and active matrixing |
| 07/20/2000 | WO2000021337A3 Integrated audio mixer with alternating quantization output |
| 07/20/2000 | DE19901546A1 Electronic circuit for natural reproduction of electric audio and music signals via earphone set |
| 07/20/2000 | DE19900961A1 Verfahren und Vorrichtung zur Wiedergabe von Mehrkanaltonsignalen A method and apparatus for reproducing multi-channel audio |
| 07/19/2000 | EP1021062A2 Method and apparatus for the reproduction of multi-channel audio signals |
| 07/19/2000 | EP1021061A2 Method and receiver for noise suppression in radio receiver of multichannel audio signals |
| 07/19/2000 | CN1054724C Stereophonic separation degree booster |
| 07/18/2000 | US6091894 Virtual sound source positioning apparatus |
| 07/18/2000 | US6091826 Method for implementing a sound reproduction system for a large space, and a sound reproduction system |
| 07/13/2000 | DE19900818A1 Verfahren und Empfänger zum Unterdrücken von Störungen beim Funkempfang von Mehrkanal-Audiosendungen Method and receiver for suppressing interference to radio communications of multi-channel audio broadcasts |
| 07/05/2000 | EP1016319A1 Process and device for coding a time-discrete stereo signal |
| 06/28/2000 | EP1014756A2 Method and apparatus for loudspeaker with positional 3D sound |
| 06/20/2000 | US6078669 Audio spatial localization apparatus and methods |
| 06/14/2000 | CN1256851A Surround sound reproduction system, sound/visual reproduction system, surround signal processing unit and method for processing input surround signal |
| 06/13/2000 | US6075868 Apparatus for the creation of a desirable acoustical virtual reality |
| 06/08/2000 | DE19853314A1 Audio signal processing device for preventing masking uses an amplifier to bring broadband speech frequency information delivered by a microphone or a sound carrier to inputs to a level for feeding two parallel filters. |
| 06/07/2000 | CN2382101Y Automatic switch for karaoke device |
| 05/31/2000 | EP1004222A1 A distributed stereo system |
| 05/31/2000 | CN1053079C Equipment and method for producing multi-channel sound with two loudspeakers |
| 05/31/2000 | CN1053078C Stereo sound intensifying system |
| 05/30/2000 | US6069962 Point source speaker system |
| 05/24/2000 | EP1003282A2 Integrated circuit for processing audio signal |
| 05/24/2000 | EP1002364A1 Infinite impulse response filter for 3d sound with tap delay lineinitialization |