ATE529855T1 - Audiocodierungsvorrichtung und -verfahren - Google Patents

Audiocodierungsvorrichtung und -verfahren

Info

Publication number
ATE529855T1
ATE529855T1 AT09179879T AT09179879T ATE529855T1 AT E529855 T1 ATE529855 T1 AT E529855T1 AT 09179879 T AT09179879 T AT 09179879T AT 09179879 T AT09179879 T AT 09179879T AT E529855 T1 ATE529855 T1 AT E529855T1
Authority
AT
Austria
Prior art keywords
control unit
audio signal
channels
bits assigned
bit allocation
Prior art date
Application number
AT09179879T
Other languages
English (en)
Inventor
Yoshiteru Tsuchinaga
Miyuki Shirakawa
Masanao Suzuki
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of ATE529855T1 publication Critical patent/ATE529855T1/de

Links

Classifications

    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/032—Quantisation or dequantisation of spectral components
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
AT09179879T 2008-12-26 2009-12-18 Audiocodierungsvorrichtung und -verfahren ATE529855T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008335027A JP5446258B2 (ja) 2008-12-26 2008-12-26 オーディオ符号化装置

Publications (1)

Publication Number Publication Date
ATE529855T1 true ATE529855T1 (de) 2011-11-15

Family

ID=41809282

Family Applications (1)

Application Number Title Priority Date Filing Date
AT09179879T ATE529855T1 (de) 2008-12-26 2009-12-18 Audiocodierungsvorrichtung und -verfahren

Country Status (4)

Country Link
US (1) US20100169080A1 (de)
EP (1) EP2202724B1 (de)
JP (1) JP5446258B2 (de)
AT (1) ATE529855T1 (de)

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JP5609591B2 (ja) * 2010-11-30 2014-10-22 富士通株式会社 オーディオ符号化装置、オーディオ符号化方法及びオーディオ符号化用コンピュータプログラム
JP5704018B2 (ja) * 2011-08-05 2015-04-22 富士通セミコンダクター株式会社 オーディオ信号符号化方法および装置
JP5782921B2 (ja) * 2011-08-26 2015-09-24 富士通株式会社 符号化装置、符号化方法および符号化プログラム
TWI505262B (zh) * 2012-05-15 2015-10-21 Dolby Int Ab 具多重子流之多通道音頻信號的有效編碼與解碼
WO2014046916A1 (en) 2012-09-21 2014-03-27 Dolby Laboratories Licensing Corporation Layered approach to spatial audio coding
US9336791B2 (en) * 2013-01-24 2016-05-10 Google Inc. Rearrangement and rate allocation for compressing multichannel audio
WO2014210284A1 (en) 2013-06-27 2014-12-31 Dolby Laboratories Licensing Corporation Bitstream syntax for spatial voice coding
US20150025894A1 (en) * 2013-07-16 2015-01-22 Electronics And Telecommunications Research Institute Method for encoding and decoding of multi channel audio signal, encoder and decoder
EP3095117B1 (de) * 2014-01-13 2018-08-22 Nokia Technologies Oy Multikanal-audiosignalklassifizierer
WO2017144246A1 (en) * 2016-02-24 2017-08-31 Dolby International Ab Method and system for bit reservoir control in case of varying metadata
US10573324B2 (en) 2016-02-24 2020-02-25 Dolby International Ab Method and system for bit reservoir control in case of varying metadata
WO2025114350A1 (en) * 2023-11-30 2025-06-05 Dolby International Ab Level-dependent channel bit distribution

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US5109417A (en) * 1989-01-27 1992-04-28 Dolby Laboratories Licensing Corporation Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
US5488665A (en) * 1993-11-23 1996-01-30 At&T Corp. Multi-channel perceptual audio compression system with encoding mode switching among matrixed channels
TW295747B (de) * 1994-06-13 1997-01-11 Sony Co Ltd
EP0721257B1 (de) * 1995-01-09 2005-03-30 Daewoo Electronics Corporation Bitverteilung für Mehrkanal-Audiokodierer auf Grund von wahrnehmungsgebundener Entropie
JPH09325797A (ja) * 1996-06-06 1997-12-16 Sony Cinema Prod Corp マルチチャンネルオーディオデータの符号化方法及びその符号化装置
JP3328532B2 (ja) * 1997-01-22 2002-09-24 シャープ株式会社 デジタルデータの符号化方法
KR100548891B1 (ko) * 1998-06-15 2006-02-02 마츠시타 덴끼 산교 가부시키가이샤 음성 부호화 장치 및 음성 부호화 방법
JP3466507B2 (ja) * 1998-06-15 2003-11-10 松下電器産業株式会社 音声符号化方式、音声符号化装置、及びデータ記録媒体
JP2001077698A (ja) 1999-09-08 2001-03-23 Matsushita Electric Ind Co Ltd オーディオ符号化アプリケーションに対するブロックサイズ決定方法
US7548851B1 (en) * 1999-10-12 2009-06-16 Jack Lau Digital multimedia jukebox
JP4021124B2 (ja) 2000-05-30 2007-12-12 株式会社リコー デジタル音響信号符号化装置、方法及び記録媒体
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JP4639073B2 (ja) * 2004-11-18 2011-02-23 キヤノン株式会社 オーディオ信号符号化装置および方法
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Also Published As

Publication number Publication date
EP2202724B1 (de) 2011-10-19
JP2010156837A (ja) 2010-07-15
US20100169080A1 (en) 2010-07-01
EP2202724A1 (de) 2010-06-30
JP5446258B2 (ja) 2014-03-19

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