TW200636676A - Method for representing multi-channel audio signals - Google Patents

Method for representing multi-channel audio signals

Info

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
Application number
TW094126934A
Other languages
Chinese (zh)
Other versions
TWI313857B (en
Inventor
Heiko Purnhagen
Lars Villemoes
Jonas Engdegard
Jonas Roeden
Kristofer Kjoerling
Original Assignee
Coding Tech Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from PCT/EP2005/003849 external-priority patent/WO2005101371A1/en
Application filed by Coding Tech Ab filed Critical Coding Tech Ab
Publication of TW200636676A publication Critical patent/TW200636676A/en
Application granted granted Critical
Publication of TWI313857B publication Critical patent/TWI313857B/en

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.
TW094126934A 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 TWI313857B (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (10)

* Cited by examiner, † Cited by third party
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
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