WO2010101381A3 - Method and apparatus for processing audio data - Google Patents

Method and apparatus for processing audio data Download PDF

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Publication number
WO2010101381A3
WO2010101381A3 PCT/KR2010/001276 KR2010001276W WO2010101381A3 WO 2010101381 A3 WO2010101381 A3 WO 2010101381A3 KR 2010001276 W KR2010001276 W KR 2010001276W WO 2010101381 A3 WO2010101381 A3 WO 2010101381A3
Authority
WO
WIPO (PCT)
Prior art keywords
channel data
data
processing audio
loaded
audio data
Prior art date
Application number
PCT/KR2010/001276
Other languages
French (fr)
Other versions
WO2010101381A2 (en
Inventor
Sang Won Seo
Hun Joong Kim
Original Assignee
Core Logic Inc.
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 Core Logic Inc. filed Critical Core Logic Inc.
Priority to CN2010800103099A priority Critical patent/CN102341845B/en
Priority to JP2011552879A priority patent/JP2012519310A/en
Publication of WO2010101381A2 publication Critical patent/WO2010101381A2/en
Publication of WO2010101381A3 publication Critical patent/WO2010101381A3/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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

Abstract

Disclosed herein is a method and apparatus for processing audio data. The method of processing audio data comprises loading previous accumulation data and any one of pieces of channel data from memory, operating the loaded channel data using a down-mix coefficient corresponding to the loaded channel data, determining whether the loaded channel data are last input channel data for configuring output channel data, and if, as a result of the determination, the loaded channel data are determined to be the last input channel data, operating the operated channel data and the previous accumulation data using a window coefficient. Accordingly, the down-mix and windowing processes can be integrally performed.
PCT/KR2010/001276 2009-03-04 2010-03-02 Method and apparatus for processing audio data WO2010101381A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2010800103099A CN102341845B (en) 2009-03-04 2010-03-02 Method and apparatus for processing audio data
JP2011552879A JP2012519310A (en) 2009-03-04 2010-03-02 Audio data processing method and apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020090018624A KR101078379B1 (en) 2009-03-04 2009-03-04 Method and Apparatus for Processing Audio Data
KR10-2009-0018624 2009-03-04

Publications (2)

Publication Number Publication Date
WO2010101381A2 WO2010101381A2 (en) 2010-09-10
WO2010101381A3 true WO2010101381A3 (en) 2010-11-18

Family

ID=42710096

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2010/001276 WO2010101381A2 (en) 2009-03-04 2010-03-02 Method and apparatus for processing audio data

Country Status (4)

Country Link
JP (1) JP2012519310A (en)
KR (1) KR101078379B1 (en)
CN (1) CN102341845B (en)
WO (1) WO2010101381A2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6128597A (en) * 1996-05-03 2000-10-03 Lsi Logic Corporation Audio decoder with a reconfigurable downmixing/windowing pipeline and method therefor
KR20000073030A (en) * 1999-05-04 2000-12-05 김영환 Device for overlapping and adding window in AC-3 decoder

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02294200A (en) * 1989-05-09 1990-12-05 Mitsubishi Electric Corp Sound receiver
JPH06165079A (en) * 1992-11-25 1994-06-10 Matsushita Electric Ind Co Ltd Down mixing device for multichannel stereo use
JP3761639B2 (en) * 1995-09-29 2006-03-29 ユナイテッド・モジュール・コーポレーション Audio decoding device
JP2001298680A (en) * 2000-04-17 2001-10-26 Matsushita Electric Ind Co Ltd Specification of digital broadcasting signal and its receiving device
JP2004109362A (en) * 2002-09-17 2004-04-08 Pioneer Electronic Corp Apparatus, method, and program for noise removal of frame structure
KR20110110093A (en) * 2008-10-01 2011-10-06 톰슨 라이센싱 Decoding apparatus, decoding method, encoding apparatus, encoding method, and editing apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6128597A (en) * 1996-05-03 2000-10-03 Lsi Logic Corporation Audio decoder with a reconfigurable downmixing/windowing pipeline and method therefor
KR20000073030A (en) * 1999-05-04 2000-12-05 김영환 Device for overlapping and adding window in AC-3 decoder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
STEVE VERNON: "DESIGN AND IMPLEMENTATION OF AC-3 CODERS", CONSUMER ELECTRONICS, IEEE TRANSACTIONS ON, vol. 41, no. 3, August 1995 (1995-08-01), pages 754 - 759 *

Also Published As

Publication number Publication date
KR101078379B1 (en) 2011-10-31
KR20100099998A (en) 2010-09-15
JP2012519310A (en) 2012-08-23
CN102341845B (en) 2013-06-12
WO2010101381A2 (en) 2010-09-10
CN102341845A (en) 2012-02-01

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