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

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)
12/2004
12/23/2004	US20040258247 Pseudo multi-channel play-back apparatus
12/22/2004	EP1489886A2 Acoustic apparatus and acoustic setting method
12/22/2004	CN1557111A Method and apparatus for multichannel logic matrix decoding
12/15/2004	EP1487236A2 Sound system with equalization for a convertible automobile
12/15/2004	EP1486097A2 User controlled multi-channel audio conversion system
12/09/2004	WO2004107811A1 Array speaker system
12/09/2004	US20040249490 Multichannel audio system, and head unit and slave unit used for the same
12/09/2004	US20040247141 Convertible automobile sound system equalizing
12/09/2004	US20040247140 Parametric virtual speaker and surround-sound system
12/09/2004	US20040247135 Method and apparatus for multichannel logic matrix decoding
12/07/2004	US6829018 Three-dimensional sound creation assisted by visual information
12/01/2004	CN1178552C Acoustic-field correction circuit and its method
11/2004
11/30/2004	US6826282 Music spatialisation system and method
11/25/2004	WO2003104924A3 Acoustical virtual reality engine and advanced techniques for enhancing delivered sound
11/24/2004	EP1479266A2 Method and device for control of a unit for reproduction of an acoustic field
11/24/2004	EP0968625B1 Audiochannel mixing
11/24/2004	CN1177257C Audiovisual system in theatre
11/18/2004	US20040228498 Sound field controller
11/17/2004	EP1477043A2 Compact surround-sound system
11/10/2004	EP1475992A2 Electroacoustical transducing
11/10/2004	EP1127476A4 Point source speaker system
11/09/2004	US6816597 Pseudo stereophonic device
11/03/2004	EP1473971A2 Sound field controller
11/03/2004	EP1472905A2 Multichannel echo canceller system using active audio matrix coefficients
10/2004
10/28/2004	US20040213412 Stereo sounding method, stereo sounding system, and musical tone generation control system
10/28/2004	US20040213411 Audio data processing device, audio data processing method, its program and recording medium storing the program
10/27/2004	EP1471772A2 Device and method for processing audio data, corresponding program and recording medium storing the program
10/27/2004	EP1471771A2 Audio reproduction apparatus and video receiving apparatus
10/27/2004	EP0875126B1 Surround sound processor with improved control voltage generator
10/27/2004	CN1541500A System for generating sounds
10/21/2004	WO1999012386A9 5-2-5 matrix encoder and decoder system
10/20/2004	EP1469705A2 Controlling fading and surround signal level
10/20/2004	CN1172234C Method for implementing virtual multiple sound channel by spectrum analysis
10/14/2004	WO2004019656A3 Audio channel spatial translation
10/13/2004	CN1171503C Multi-channel audio enhancement system for use in recording and playback and method for providing same
10/12/2004	US6804565 Data-driven software architecture for digital sound processing and equalization
10/12/2004	US6804361 Sound signal playback machine and method thereof
10/07/2004	US20040196983 Reverberation apparatus controllable by positional information of sound source
10/07/2004	US20040196982 Directional electroacoustical transducing
10/06/2004	EP1465152A2 Reverberation apparatus controllable by positional information of sound source
09/2004
09/30/2004	US20040190726 Audio output control circuit
09/29/2004	CN1533214A Array speaker detector, array speaker device and its distributing line judging method
09/23/2004	WO2003073791A8 Method and device for control of a unit for reproduction of an acoustic field
09/23/2004	US20040184619 Sound control system, sound control device, electronic device, and method for controlling sound
09/23/2004	US20040184617 Information apparatus, system for controlling acoustic equipment and method of controlling acoustic equipment
09/22/2004	EP0963682B1 Six-axis surround sound processor with improved matrix and cancellation control
09/21/2004	US6795560 Digital mixer and digital mixing method
09/21/2004	US6795556 Method of modifying one or more original head related transfer functions
09/16/2004	US20040179697 Surround detection system
09/15/2004	EP1457092A1 Method for improving spatial perception in virtual surround
09/15/2004	CN1529533A High-fidelity audio transmitting device
09/09/2004	US20040175001 Circuit and program for processing multichannel audio signals and apparatus for reproducing same
09/08/2004	EP1455554A2 Circuit and program for processing multichannel audio signals and apparatus for reproducing same
09/08/2004	EP1183911B1 Virtual multichannel speaker system
09/08/2004	CN1528105A Method of generating a left modified and a right modified audio signal for a stereo system
09/02/2004	WO2003094396A8 Discrete surround audio system for home and automotive listening
09/01/2004	EP0776593B1 Method and apparatus for spatially enhancing stereo and monophonic signals
08/2004
08/26/2004	WO2004072956A1 Audio coding
08/25/2004	CN2636568Y Active plane artistic voice box
08/25/2004	CN1524400A Efficient and scalable parametric stereo coding for low bitrate applications
08/25/2004	CN1524399A Audio channel translation
08/24/2004	US6781933 Pseudo multi-channel stereo play-back
08/19/2004	US20040161126 Controlling fading and surround signal level
08/18/2004	EP0923848A4 Multichannel active matrix sound reproduction with maximum lateral separation
08/11/2004	EP0760197A4 Three-dimensional virtual audio display employing reduced complexity imaging filters
08/11/2004	CN2632975Y Loudspeaker structure improvement
08/05/2004	US20040151476 Multichannel reproducing apparatus
08/04/2004	EP1443804A2 A multichannel reproducing apparatus
08/04/2004	CN1518397A Voice-frequency device
08/03/2004	US6772024 Method, apparatus and storage medium for adjusting the phase of sound from multiple speaker units
07/2004
07/28/2004	EP1234484B1 Method for deriving at least three audio signals from two input audio signals
07/22/2004	US20040142748 Gaming system with surround sound
07/22/2004	US20040141619 Method of generating a left modified and a right modified audio signal for a stereo system
07/21/2004	EP1439509A2 Gaming system with surround sound
07/16/2004	CA2454401A1 Gaming system with surround sound
07/15/2004	WO2004028204A3 Generation of a sound signal
07/15/2004	US20040136554 Equalization of the output in a stereo widening network
07/15/2004	US20040136551 Audio apparatus
07/14/2004	EP1437915A2 Audio apparatus with main speakers and sound effekt speakers
07/07/2004	CN2624342Y Effect administering equipment for controlling two dimensional sound image alignment
07/01/2004	US20040125971 Combination loudspeaker unit
07/01/2004	US20040125967 Base management systems
07/01/2004	US20040125241 Audio information transforming method, audio information transforming program, and audio information transforming device
06/2004
06/30/2004	CN1509118A Directional electro-acoustic convertor
06/24/2004	WO2004054321A1 Audio signal reproducing method and reproducing apparatus
06/23/2004	EP1430751A2 Method and apparatus for multichannel logic matrix decoding
06/23/2004	EP1430750A2 Method and device for selecting a sound algorithm
06/23/2004	CN1507701A Parametric virtual speaker and surround-sound system
06/17/2004	US20040114774 Sound reproduction system
06/17/2004	US20040112671 Loudspeaker unit and assembly
06/10/2004	WO2004049759A1 Equalisation of the output in a stereo widening network
06/09/2004	EP1427254A2 Electroacoustical transducing with low frequency aufmenting devices
06/09/2004	EP1427253A2 Directional electroacoustical transducing
06/09/2004	EP1240805B1 Method and arrangement for recording and playing back sounds
06/08/2004	US6748160 System of sharing objects having a plurality of contents
06/03/2004	WO2004028205A3 Sound reproduction system, program and data carrier
06/01/2004	CA2227498C Sound processing circuit
05/2004
05/26/2004	CN1499895A Acoustic equipment
05/25/2004	US6741706 Audio signal processing method and apparatus
05/20/2004	US20040096111 Block size assignment using local contrast ratio

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