DE602007013026D1 - Audiocodierungseinrichtung, audiodecodierungseinrichtung und verfahren dafür - Google Patents

Audiocodierungseinrichtung, audiodecodierungseinrichtung und verfahren dafür

Info

Publication number
DE602007013026D1
DE602007013026D1 DE602007013026T DE602007013026T DE602007013026D1 DE 602007013026 D1 DE602007013026 D1 DE 602007013026D1 DE 602007013026 T DE602007013026 T DE 602007013026T DE 602007013026 T DE602007013026 T DE 602007013026T DE 602007013026 D1 DE602007013026 D1 DE 602007013026D1
Authority
DE
Germany
Prior art keywords
unit
filter
coefficient
pitch
noise characteristic
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.)
Active
Application number
DE602007013026T
Other languages
English (en)
Inventor
Masahiro Oshikiri
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.)
Panasonic Corp
Original Assignee
Panasonic Corp
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 Panasonic Corp filed Critical Panasonic Corp
Publication of DE602007013026D1 publication Critical patent/DE602007013026D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G10L19/04—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
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
    • 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
    • G10L19/0204—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 using subband decomposition
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/09—Long term prediction, i.e. removing periodical redundancies, e.g. by using adaptive codebook or pitch predictor

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
DE602007013026T 2006-04-27 2007-04-26 Audiocodierungseinrichtung, audiodecodierungseinrichtung und verfahren dafür Active DE602007013026D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006124175 2006-04-27
PCT/JP2007/059091 WO2007126015A1 (ja) 2006-04-27 2007-04-26 音声符号化装置、音声復号化装置、およびこれらの方法

Publications (1)

Publication Number Publication Date
DE602007013026D1 true DE602007013026D1 (de) 2011-04-21

Family

ID=38655539

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602007013026T Active DE602007013026D1 (de) 2006-04-27 2007-04-26 Audiocodierungseinrichtung, audiodecodierungseinrichtung und verfahren dafür

Country Status (6)

Country Link
US (1) US20100161323A1 (de)
EP (2) EP2012305B1 (de)
JP (1) JP5173800B2 (de)
AT (1) ATE501505T1 (de)
DE (1) DE602007013026D1 (de)
WO (1) WO2007126015A1 (de)

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US8032359B2 (en) * 2007-02-14 2011-10-04 Mindspeed Technologies, Inc. Embedded silence and background noise compression
US8352249B2 (en) * 2007-11-01 2013-01-08 Panasonic Corporation Encoding device, decoding device, and method thereof
ES2629453T3 (es) * 2007-12-21 2017-08-09 Iii Holdings 12, Llc Codificador, descodificador y procedimiento de codificación
KR101570550B1 (ko) * 2008-03-14 2015-11-19 파나소닉 인텔렉츄얼 프로퍼티 코포레이션 오브 아메리카 부호화 장치, 복호 장치 및 이러한 방법
JP5754899B2 (ja) 2009-10-07 2015-07-29 ソニー株式会社 復号装置および方法、並びにプログラム
JP5928539B2 (ja) * 2009-10-07 2016-06-01 ソニー株式会社 符号化装置および方法、並びにプログラム
WO2011048792A1 (ja) * 2009-10-21 2011-04-28 パナソニック株式会社 音響信号処理装置、音響符号化装置および音響復号装置
WO2011121782A1 (ja) * 2010-03-31 2011-10-06 富士通株式会社 帯域拡張装置および帯域拡張方法
JP5850216B2 (ja) 2010-04-13 2016-02-03 ソニー株式会社 信号処理装置および方法、符号化装置および方法、復号装置および方法、並びにプログラム
JP5652658B2 (ja) 2010-04-13 2015-01-14 ソニー株式会社 信号処理装置および方法、符号化装置および方法、復号装置および方法、並びにプログラム
JP5609737B2 (ja) 2010-04-13 2014-10-22 ソニー株式会社 信号処理装置および方法、符号化装置および方法、復号装置および方法、並びにプログラム
CA3160488C (en) 2010-07-02 2023-09-05 Dolby International Ab Audio decoding with selective post filtering
JP6075743B2 (ja) 2010-08-03 2017-02-08 ソニー株式会社 信号処理装置および方法、並びにプログラム
JP5707842B2 (ja) 2010-10-15 2015-04-30 ソニー株式会社 符号化装置および方法、復号装置および方法、並びにプログラム
JP5942358B2 (ja) 2011-08-24 2016-06-29 ソニー株式会社 符号化装置および方法、復号装置および方法、並びにプログラム
US8897352B2 (en) * 2012-12-20 2014-11-25 Nvidia Corporation Multipass approach for performing channel equalization training
US9875746B2 (en) 2013-09-19 2018-01-23 Sony Corporation Encoding device and method, decoding device and method, and program
KR102251833B1 (ko) 2013-12-16 2021-05-13 삼성전자주식회사 오디오 신호의 부호화, 복호화 방법 및 장치
AU2014371411A1 (en) 2013-12-27 2016-06-23 Sony Corporation Decoding device, method, and program
CN106463143B (zh) 2014-03-03 2020-03-13 三星电子株式会社 用于带宽扩展的高频解码的方法及设备
SG11201609834TA (en) 2014-03-24 2016-12-29 Samsung Electronics Co Ltd High-band encoding method and device, and high-band decoding method and device
JP7005848B2 (ja) * 2018-11-22 2022-01-24 株式会社Ｊｖｃケンウッド 音声処理条件設定装置、無線通信装置、および音声処理条件設定方法
JP7196993B2 (ja) * 2018-11-22 2022-12-27 株式会社Ｊｖｃケンウッド 音声処理条件設定装置、無線通信装置、および音声処理条件設定方法

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US5327520A (en) * 1992-06-04 1994-07-05 At&T Bell Laboratories Method of use of voice message coder/decoder
US6256606B1 (en) * 1998-11-30 2001-07-03 Conexant Systems, Inc. Silence description coding for multi-rate speech codecs
US6691084B2 (en) * 1998-12-21 2004-02-10 Qualcomm Incorporated Multiple mode variable rate speech coding
US6691085B1 (en) * 2000-10-18 2004-02-10 Nokia Mobile Phones Ltd. Method and system for estimating artificial high band signal in speech codec using voice activity information
JP2004302257A (ja) * 2003-03-31 2004-10-28 Matsushita Electric Ind Co Ltd 長期ポストフィルタ
WO2005111568A1 (ja) * 2004-05-14 2005-11-24 Matsushita Electric Industrial Co., Ltd. 符号化装置、復号化装置、およびこれらの方法
KR20070070174A (ko) * 2004-10-13 2007-07-03 마츠시타 덴끼 산교 가부시키가이샤 스케일러블 부호화 장치, 스케일러블 복호 장치 및스케일러블 부호화 방법
DK1780155T3 (da) 2004-10-14 2012-01-23 Muller Martini Mailroom Systems Inc Produkttilførselsapparat med accelerator- og decelerationsindretninger
KR20070068424A (ko) * 2004-10-26 2007-06-29 마츠시타 덴끼 산교 가부시키가이샤 음성 부호화 장치 및 음성 부호화 방법
EP1806737A4 (de) * 2004-10-27 2010-08-04 Panasonic Corp Toncodierer und toncodierungsverfahren
ES2476992T3 (es) * 2004-11-05 2014-07-15 Panasonic Corporation Codificador, descodificador, método de codificación y método de descodificaci�n
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US7953605B2 (en) * 2005-10-07 2011-05-31 Deepen Sinha Method and apparatus for audio encoding and decoding using wideband psychoacoustic modeling and bandwidth extension

Also Published As

Publication number Publication date
EP2323131A1 (de) 2011-05-18
JP5173800B2 (ja) 2013-04-03
US20100161323A1 (en) 2010-06-24
EP2012305A1 (de) 2009-01-07
JPWO2007126015A1 (ja) 2009-09-10
WO2007126015A1 (ja) 2007-11-08
ATE501505T1 (de) 2011-03-15
EP2012305B1 (de) 2011-03-09
EP2012305A4 (de) 2010-04-14

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