WO2008046530A3 - Apparatus and method for multi -channel parameter transformation - Google Patents

Apparatus and method for multi -channel parameter transformation Download PDF

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Publication number
WO2008046530A3
WO2008046530A3 PCT/EP2007/008682 EP2007008682W WO2008046530A3 WO 2008046530 A3 WO2008046530 A3 WO 2008046530A3 EP 2007008682 W EP2007008682 W EP 2007008682W WO 2008046530 A3 WO2008046530 A3 WO 2008046530A3
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WO
WIPO (PCT)
Prior art keywords
parameter
channel
parameters
energy
audio
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/EP2007/008682
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French (fr)
Other versions
WO2008046530A2 (en
Inventor
Johannes Hilpert
Karsten Linzmeier
Juergen Herre
Ralph Sperschneider
Andreas Hoelzer
Lars Villemoes
Jonas Engdegard
Heiko Purnhagen
Kristofer Kjoerling
Jeroen Breebaart
Werner Oomen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung eV
Koninklijke Philips NV
Coding Technologies Sweden AB
Original Assignee
Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung eV
Koninklijke Philips Electronics NV
Coding Technologies Sweden 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
Application filed by Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung eV, Koninklijke Philips Electronics NV, Coding Technologies Sweden AB filed Critical Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung eV
Priority to HK09108162.6A priority Critical patent/HK1128548B/en
Priority to BRPI0715312-0A priority patent/BRPI0715312B1/en
Priority to EP07818758A priority patent/EP2082397B1/en
Priority to MX2009003564A priority patent/MX2009003564A/en
Priority to US12/445,699 priority patent/US8687829B2/en
Priority to CN2007800384724A priority patent/CN101529504B/en
Priority to CA2673624A priority patent/CA2673624C/en
Priority to AT07818758T priority patent/ATE539434T1/en
Priority to AU2007312597A priority patent/AU2007312597B2/en
Priority to JP2009532702A priority patent/JP5337941B2/en
Priority to KR1020097007754A priority patent/KR101120909B1/en
Priority to TW096137939A priority patent/TWI359620B/en
Publication of WO2008046530A2 publication Critical patent/WO2008046530A2/en
Publication of WO2008046530A3 publication Critical patent/WO2008046530A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • H04S1/002—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 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/03—Application of parametric coding in stereophonic audio systems

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Stereophonic System (AREA)

Abstract

A parameter transformer generates level parameters, indicating an energy relation between a first and a second audio channel of a multi-channel audio signal associated to a multi-channel loudspeake configuration. The level parameter are generated based on object parameters for a plurality of audio objects associated to a down-mix channel, which is generated using object audio signals associated to the audio objects. The object parameters comprise an energy parameter indicating an energy of the object audio signal. To derive the coherence and the level parameters, a parameter generator is used, which combines the energy parameter and object rendering parameters, which depend on a desired rendering configuration.
PCT/EP2007/008682 2006-10-16 2007-10-05 Apparatus and method for multi -channel parameter transformation Ceased WO2008046530A2 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
HK09108162.6A HK1128548B (en) 2006-10-16 2007-10-05 Apparatus and method for multi -channel parameter transformation
BRPI0715312-0A BRPI0715312B1 (en) 2006-10-16 2007-10-05 APPARATUS AND METHOD FOR TRANSFORMING MULTICHANNEL PARAMETERS
EP07818758A EP2082397B1 (en) 2006-10-16 2007-10-05 Apparatus and method for multi -channel parameter transformation
MX2009003564A MX2009003564A (en) 2006-10-16 2007-10-05 Apparatus and method for multi -channel parameter transformation.
US12/445,699 US8687829B2 (en) 2006-10-16 2007-10-05 Apparatus and method for multi-channel parameter transformation
CN2007800384724A CN101529504B (en) 2006-10-16 2007-10-05 Device and method for multi-channel parameter conversion
CA2673624A CA2673624C (en) 2006-10-16 2007-10-05 Apparatus and method for multi-channel parameter transformation
AT07818758T ATE539434T1 (en) 2006-10-16 2007-10-05 APPARATUS AND METHOD FOR MULTI-CHANNEL PARAMETER CONVERSION
AU2007312597A AU2007312597B2 (en) 2006-10-16 2007-10-05 Apparatus and method for multi -channel parameter transformation
JP2009532702A JP5337941B2 (en) 2006-10-16 2007-10-05 Apparatus and method for multi-channel parameter conversion
KR1020097007754A KR101120909B1 (en) 2006-10-16 2007-10-05 Apparatus and method for multi-channel parameter transformation and computer readable recording medium therefor
TW096137939A TWI359620B (en) 2006-10-16 2007-10-11 Apparatus and method for multi-channel parameter t

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82965306P 2006-10-16 2006-10-16
US60/829,653 2006-10-16

Publications (2)

Publication Number Publication Date
WO2008046530A2 WO2008046530A2 (en) 2008-04-24
WO2008046530A3 true WO2008046530A3 (en) 2008-06-26

Family

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PCT/EP2007/008682 Ceased WO2008046530A2 (en) 2006-10-16 2007-10-05 Apparatus and method for multi -channel parameter transformation

Country Status (14)

Country Link
US (1) US8687829B2 (en)
EP (2) EP2082397B1 (en)
JP (2) JP5337941B2 (en)
KR (1) KR101120909B1 (en)
CN (1) CN101529504B (en)
AT (1) ATE539434T1 (en)
AU (1) AU2007312597B2 (en)
BR (1) BRPI0715312B1 (en)
CA (1) CA2673624C (en)
MX (1) MX2009003564A (en)
MY (1) MY144273A (en)
RU (1) RU2431940C2 (en)
TW (1) TWI359620B (en)
WO (1) WO2008046530A2 (en)

Cited By (1)

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