SG70557A1 - Sound image manipulation apparatus and method for sound image enhancement - Google Patents
Sound image manipulation apparatus and method for sound image enhancementInfo
- Publication number
- SG70557A1 SG70557A1 SG1996005287A SG1996005287A SG70557A1 SG 70557 A1 SG70557 A1 SG 70557A1 SG 1996005287 A SG1996005287 A SG 1996005287A SG 1996005287 A SG1996005287 A SG 1996005287A SG 70557 A1 SG70557 A1 SG 70557A1
- Authority
- SG
- Singapore
- Prior art keywords
- signals
- listener
- boundaries
- sound image
- perceived
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/002—Non-adaptive circuits, e.g. manually adjustable or static, for enhancing the sound image or the spatial distribution
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation
- H04S5/02—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation of the pseudo four-channel type, e.g. in which rear channel signals are derived from two-channel stereo signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Stereophonic System (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Endoscopes (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The manipulation system and apparatus receive electronic signals which are to be processed as enhanced stereophonic audio signals from two laterally spaced loudspeakers in front of the listener, either directly before recording or broadcasting, or after recording, or after being broadcast. The system and apparatus process those signals to produce a conditioning signal, such as which would be produced by virtual room boundaries, which is heard together with the original signals so that an enlarged listening area is perceived by the listener. By amplitude and phase control of the signal to the two loudspeakers, the system and apparatus provide a means for control over the enhanced sound field. This enhanced sound field is perceived by the listener as being contained within boundaries larger than those normally reproduced by stereophonic speakers. The system and apparatus generate a conditioning signal for the enhancement of natural, and generation of artificial, spatial qualities present in stereo signals usually masked in the acoustic environment in which reproduction takes place, through generation of phantom boundaries. The apparatus can monitor its own output and shut down or reduce the effects if the output contains qualities that cannot be broadcast. The apparatus provides self-adjustment in the electronic system to maintain spatial masking reversal at a constant value regardless of program material.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US1992/011335 WO1994016537A1 (en) | 1990-01-09 | 1992-12-31 | Stereophonic manipulation apparatus and method for sound image enhancement |
Publications (1)
Publication Number | Publication Date |
---|---|
SG70557A1 true SG70557A1 (en) | 2000-02-22 |
Family
ID=22231683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG1996005287A SG70557A1 (en) | 1992-12-31 | 1993-12-30 | Sound image manipulation apparatus and method for sound image enhancement |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0677235B1 (en) |
JP (1) | JPH08509104A (en) |
CN (1) | CN1091889A (en) |
AT (1) | ATE183050T1 (en) |
AU (3) | AU3427393A (en) |
CA (1) | CA2153062A1 (en) |
DE (1) | DE69325922D1 (en) |
IL (2) | IL104665A (en) |
SG (1) | SG70557A1 (en) |
WO (1) | WO1994016538A1 (en) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6091894A (en) * | 1995-12-15 | 2000-07-18 | Kabushiki Kaisha Kawai Gakki Seisakusho | Virtual sound source positioning apparatus |
US5995631A (en) * | 1996-07-23 | 1999-11-30 | Kabushiki Kaisha Kawai Gakki Seisakusho | Sound image localization apparatus, stereophonic sound image enhancement apparatus, and sound image control system |
KR100206333B1 (en) * | 1996-10-08 | 1999-07-01 | 윤종용 | Device and method for the reproduction of multichannel audio using two speakers |
US5912976A (en) * | 1996-11-07 | 1999-06-15 | Srs Labs, Inc. | Multi-channel audio enhancement system for use in recording and playback and methods for providing same |
JP3740670B2 (en) | 1997-05-20 | 2006-02-01 | 株式会社河合楽器製作所 | Stereo sound image magnifier |
US6373954B1 (en) | 1997-10-14 | 2002-04-16 | Cirrus Logic, Inc. | Single-chip audio circuitry, method, and systems using the same |
AU9785498A (en) * | 1997-10-14 | 1999-05-03 | Crystal Semiconductor Corp. | Single-chip audio circuits, methods, and systems using the same |
JP2001069597A (en) | 1999-06-22 | 2001-03-16 | Yamaha Corp | Voice-processing method and device |
US7031474B1 (en) * | 1999-10-04 | 2006-04-18 | Srs Labs, Inc. | Acoustic correction apparatus |
US7277767B2 (en) | 1999-12-10 | 2007-10-02 | Srs Labs, Inc. | System and method for enhanced streaming audio |
US6937737B2 (en) * | 2003-10-27 | 2005-08-30 | Britannia Investment Corporation | Multi-channel audio surround sound from front located loudspeakers |
CN101133678A (en) * | 2005-01-13 | 2008-02-27 | 环境医疗有限责任公司 | Method and apparatus for ambient sound therapy user interface and control system |
DK1801786T3 (en) * | 2005-12-20 | 2015-03-16 | Oticon As | An audio system with different time delay and a method of processing audio signals |
US8045717B2 (en) * | 2006-04-13 | 2011-10-25 | Media Tek Inc. | Stereo decoder and method for processing pilot signal |
US8050434B1 (en) | 2006-12-21 | 2011-11-01 | Srs Labs, Inc. | Multi-channel audio enhancement system |
CN103329571B (en) | 2011-01-04 | 2016-08-10 | Dts有限责任公司 | Immersion audio presentation systems |
CN103152671B (en) * | 2013-03-15 | 2016-09-28 | 珠海市杰理科技有限公司 | Audio input/output circuit |
RU2656986C1 (en) | 2014-06-26 | 2018-06-07 | Самсунг Электроникс Ко., Лтд. | Method and device for acoustic signal rendering and machine-readable recording media |
WO2016169608A1 (en) | 2015-04-24 | 2016-10-27 | Huawei Technologies Co., Ltd. | An audio signal processing apparatus and method for modifying a stereo image of a stereo signal |
CN105407443B (en) * | 2015-10-29 | 2018-02-13 | 小米科技有限责任公司 | The way of recording and device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4630298A (en) * | 1985-05-30 | 1986-12-16 | Polk Matthew S | Method and apparatus for reproducing sound having a realistic ambient field and acoustic image |
US4748669A (en) * | 1986-03-27 | 1988-05-31 | Hughes Aircraft Company | Stereo enhancement system |
US5056149A (en) * | 1987-03-10 | 1991-10-08 | Broadie Richard G | Monaural to stereophonic sound translation process and apparatus |
JP2854306B2 (en) * | 1988-11-05 | 1999-02-03 | 四一 安藤 | Sound reproduction device |
US5153362A (en) * | 1989-10-04 | 1992-10-06 | Yamaha Corporation | Electronic musical instrument having pan control function |
-
1992
- 1992-12-31 AU AU34273/93A patent/AU3427393A/en not_active Abandoned
-
1993
- 1993-02-09 IL IL10466593A patent/IL104665A/en not_active IP Right Cessation
- 1993-02-25 CN CN93101979A patent/CN1091889A/en active Pending
- 1993-12-30 WO PCT/US1993/012688 patent/WO1994016538A1/en active IP Right Grant
- 1993-12-30 DE DE69325922T patent/DE69325922D1/en not_active Expired - Lifetime
- 1993-12-30 AT AT94907123T patent/ATE183050T1/en not_active IP Right Cessation
- 1993-12-30 CA CA002153062A patent/CA2153062A1/en not_active Abandoned
- 1993-12-30 SG SG1996005287A patent/SG70557A1/en unknown
- 1993-12-30 AU AU60811/94A patent/AU6081194A/en not_active Abandoned
- 1993-12-30 EP EP94907123A patent/EP0677235B1/en not_active Expired - Lifetime
- 1993-12-30 JP JP6516471A patent/JPH08509104A/en active Pending
-
1997
- 1997-11-11 IL IL12216497A patent/IL122164A0/en unknown
-
1998
- 1998-07-14 AU AU77310/98A patent/AU7731098A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
DE69325922D1 (en) | 1999-09-09 |
ATE183050T1 (en) | 1999-08-15 |
AU7731098A (en) | 1998-10-01 |
IL104665A (en) | 1998-10-30 |
EP0677235B1 (en) | 1999-08-04 |
IL122164A0 (en) | 1998-04-05 |
EP0677235A1 (en) | 1995-10-18 |
JPH08509104A (en) | 1996-09-24 |
WO1994016538A1 (en) | 1994-07-21 |
IL104665A0 (en) | 1993-06-10 |
AU3427393A (en) | 1994-08-15 |
CA2153062A1 (en) | 1994-07-21 |
CN1091889A (en) | 1994-09-07 |
AU6081194A (en) | 1994-08-15 |
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