TW200636676A - Method for representing multi-channel audio signals - Google Patents
Method for representing multi-channel audio signalsInfo
- Publication number
- TW200636676A TW200636676A TW094126934A TW94126934A TW200636676A TW 200636676 A TW200636676 A TW 200636676A TW 094126934 A TW094126934 A TW 094126934A TW 94126934 A TW94126934 A TW 94126934A TW 200636676 A TW200636676 A TW 200636676A
- Authority
- TW
- Taiwan
- Prior art keywords
- channel
- parameter
- channels
- original
- pair
- Prior art date
Links
Abstract
A multi-channel input signal having at least three original channels is represented by a parameter representation of the multi-channel signal. A first balance parameter (r1), a first coherence parameter, or a first inter-channel time difference between a first channel pair and a second balance parameter (r2), or a second coherence parameter, or a second inter-channel time difference parameter between a second channel pair are calculated. This set of parameters is the parameter representation of the original signals. The first channel pair (102, 104) has two channels, which are different from two channels of a second channel pair (102, 104, 103). Furthermore, each channel of the two channel pairg is one of the original channels, or a weighted combination of the original channels, and the first channel pair and the second channel pair include information on the three original channels. For multi-channel reconstruction purposes, the parameters are used in addition to down-mixing information to generate a selectable number of output channels in a scalable fashion.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2005/003849 WO2005101371A1 (en) | 2004-04-16 | 2005-04-12 | Method for representing multi-channel audio signals |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200636676A true TW200636676A (en) | 2006-10-16 |
TWI313857B TWI313857B (en) | 2009-08-21 |
Family
ID=45092056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW094126934A TWI313857B (en) | 2005-04-12 | 2005-08-09 | Apparatus for generating a parameter representation of a multi-channel signal and method for representing multi-channel audio signals |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWI313857B (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI404050B (en) * | 2009-06-08 | 2013-08-01 | Mstar Semiconductor Inc | Multi-channel audio signal decoding method and device |
US8515759B2 (en) | 2007-04-26 | 2013-08-20 | Dolby International Ab | Apparatus and method for synthesizing an output signal |
US8515106B2 (en) | 2007-11-28 | 2013-08-20 | Qualcomm Incorporated | Methods and apparatus for providing an interface to a processing engine that utilizes intelligent audio mixing techniques |
US8660280B2 (en) | 2007-11-28 | 2014-02-25 | Qualcomm Incorporated | Methods and apparatus for providing a distinct perceptual location for an audio source within an audio mixture |
TWI496479B (en) * | 2008-09-03 | 2015-08-11 | Dolby Lab Licensing Corp | Enhancing the reproduction of multiple audio channels |
TWI496137B (en) * | 2012-01-26 | 2015-08-11 | Inst Rundfunktechnik Gmbh | Method and apparatus for conversion of a multi-channel audio signal into a two-channel audio signal |
TWI587286B (en) * | 2014-10-31 | 2017-06-11 | 杜比國際公司 | Method and system for decoding and encoding of audio signals, computer program product, and computer-readable medium |
CN110881157A (en) * | 2018-09-06 | 2020-03-13 | 宏碁股份有限公司 | Sound effect control method and sound effect output device for orthogonal base correction |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2523472A1 (en) * | 2011-05-13 | 2012-11-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method and computer program for generating a stereo output signal for providing additional output channels |
TWI688280B (en) * | 2018-09-06 | 2020-03-11 | 宏碁股份有限公司 | Sound effect controlling method and sound outputting device with orthogonal base correction |
ES2941268T3 (en) | 2018-12-07 | 2023-05-19 | Fraunhofer Ges Forschung | Apparatus, method and computer program for encoding, decoding, scene processing and other procedures related to dirac-based spatial audio coding using diffuse compensation |
-
2005
- 2005-08-09 TW TW094126934A patent/TWI313857B/en active
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8515759B2 (en) | 2007-04-26 | 2013-08-20 | Dolby International Ab | Apparatus and method for synthesizing an output signal |
US8515106B2 (en) | 2007-11-28 | 2013-08-20 | Qualcomm Incorporated | Methods and apparatus for providing an interface to a processing engine that utilizes intelligent audio mixing techniques |
US8660280B2 (en) | 2007-11-28 | 2014-02-25 | Qualcomm Incorporated | Methods and apparatus for providing a distinct perceptual location for an audio source within an audio mixture |
TWI496479B (en) * | 2008-09-03 | 2015-08-11 | Dolby Lab Licensing Corp | Enhancing the reproduction of multiple audio channels |
TWI404050B (en) * | 2009-06-08 | 2013-08-01 | Mstar Semiconductor Inc | Multi-channel audio signal decoding method and device |
TWI496137B (en) * | 2012-01-26 | 2015-08-11 | Inst Rundfunktechnik Gmbh | Method and apparatus for conversion of a multi-channel audio signal into a two-channel audio signal |
TWI587286B (en) * | 2014-10-31 | 2017-06-11 | 杜比國際公司 | Method and system for decoding and encoding of audio signals, computer program product, and computer-readable medium |
US9930465B2 (en) | 2014-10-31 | 2018-03-27 | Dolby International Ab | Parametric mixing of audio signals |
CN110881157A (en) * | 2018-09-06 | 2020-03-13 | 宏碁股份有限公司 | Sound effect control method and sound effect output device for orthogonal base correction |
CN110881157B (en) * | 2018-09-06 | 2021-08-10 | 宏碁股份有限公司 | Sound effect control method and sound effect output device for orthogonal base correction |
Also Published As
Publication number | Publication date |
---|---|
TWI313857B (en) | 2009-08-21 |
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