WO2008108083A1 - 音声符号化装置および音声符号化方法 - Google Patents

音声符号化装置および音声符号化方法 Download PDF

Info

Publication number
WO2008108083A1
WO2008108083A1 PCT/JP2008/000407 JP2008000407W WO2008108083A1 WO 2008108083 A1 WO2008108083 A1 WO 2008108083A1 JP 2008000407 W JP2008000407 W JP 2008000407W WO 2008108083 A1 WO2008108083 A1 WO 2008108083A1
Authority
WO
WIPO (PCT)
Prior art keywords
pitch pulse
pulse
pitch
point
unit
Prior art date
Application number
PCT/JP2008/000407
Other languages
English (en)
French (fr)
Inventor
Hiroyuki Ehara
Original Assignee
Panasonic Corporation
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 Corporation filed Critical Panasonic Corporation
Priority to US12/528,880 priority Critical patent/US8364472B2/en
Priority to EP08710510A priority patent/EP2128855A1/en
Priority to JP2009502461A priority patent/JP5596341B2/ja
Publication of WO2008108083A1 publication Critical patent/WO2008108083A1/ja

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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • G10L19/04—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
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0011—Long term prediction filters, i.e. pitch estimation

Landscapes

  • Engineering & Computer Science (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)

Abstract

　ピッチパルス情報を消失補償処理用の冗長情報として用いる場合に、最適なピッチパルスを検出することができる音声符号化装置。この装置において、探索始点決定部（１２１）は、ピッチパルスが存在し得る複数の点の中で最も過去にある点を探索始点として決定し、ピッチパルス候補選択部（１２２）は、探索始点から現フレームの先頭の点の１つ前の点までを探索範囲とし、この探索範囲において振幅が大きい復号音源ベクトルの位置をピッチパルス位置候補として選択し、切替スイッチ（１２５）は、ピッチパルス候補選択部（１２２）から入力される複数のピッチパルス位置候補を順次切り替えてパルス列生成部（１２３）および誤差最小化部（１２４）に出力し、パルス列生成部（１２３）は、切替スイッチ（１２５）から入力されたピッチパルス位置候補にピッチパルスを立てた場合に、現フレームでこのピッチパルスから適応符号帳成分として生成されるベクトルをパルス列として生成する。
PCT/JP2008/000407 2007-03-02 2008-02-29 音声符号化装置および音声符号化方法 WO2008108083A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/528,880 US8364472B2 (en) 2007-03-02 2008-02-29 Voice encoding device and voice encoding method
EP08710510A EP2128855A1 (en) 2007-03-02 2008-02-29 Voice encoding device and voice encoding method
JP2009502461A JP5596341B2 (ja) 2007-03-02 2008-02-29 音声符号化装置および音声符号化方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-053530 2007-03-02
JP2007053530 2007-03-02

Publications (1)

Publication Number Publication Date
WO2008108083A1 true WO2008108083A1 (ja) 2008-09-12

Family

ID=39737981

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/000407 WO2008108083A1 (ja) 2007-03-02 2008-02-29 音声符号化装置および音声符号化方法

Country Status (4)

Country Link
US (1) US8364472B2 (ja)
EP (1) EP2128855A1 (ja)
JP (1) JP5596341B2 (ja)
WO (1) WO2008108083A1 (ja)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1989548B (zh) * 2004-07-20 2010-12-08 松下电器产业株式会社 语音解码装置及补偿帧生成方法
US9082416B2 (en) * 2010-09-16 2015-07-14 Qualcomm Incorporated Estimating a pitch lag
KR101525185B1 (ko) 2011-02-14 2015-06-02 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 트랜지언트 검출 및 품질 결과를 사용하여 일부분의 오디오 신호를 코딩하기 위한 장치 및 방법
JP5625126B2 (ja) 2011-02-14 2014-11-12 フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン スペクトル領域ノイズ整形を使用する線形予測ベースコーディングスキーム
JP5849106B2 (ja) * 2011-02-14 2016-01-27 フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン 低遅延の統合されたスピーチ及びオーディオ符号化におけるエラー隠しのための装置及び方法
BR112012029132B1 (pt) 2011-02-14 2021-10-05 Fraunhofer - Gesellschaft Zur Förderung Der Angewandten Forschung E.V Representação de sinal de informações utilizando transformada sobreposta
PL3239978T3 (pl) 2011-02-14 2019-07-31 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Kodowanie i dekodowanie pozycji impulsów ścieżek sygnału audio
CA2827249C (en) 2011-02-14 2016-08-23 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for processing a decoded audio signal in a spectral domain
US9275644B2 (en) * 2012-01-20 2016-03-01 Qualcomm Incorporated Devices for redundant frame coding and decoding
CN104751849B (zh) 2013-12-31 2017-04-19 华为技术有限公司 语音频码流的解码方法及装置
CN107369454B (zh) 2014-03-21 2020-10-27 华为技术有限公司 语音频码流的解码方法及装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005040749A1 (ja) * 2003-10-23 2005-05-06 Matsushita Electric Industrial Co., Ltd. スペクトル符号化装置、スペクトル復号化装置、音響信号送信装置、音響信号受信装置、およびこれらの方法
JP2005513539A (ja) * 2001-12-14 2005-05-12 ノキア コーポレイション 音声信号の効率的コーディングのための信号修正方法

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04264597A (ja) * 1991-02-20 1992-09-21 Fujitsu Ltd 音声符号化装置および音声復号装置
US5265190A (en) * 1991-05-31 1993-11-23 Motorola, Inc. CELP vocoder with efficient adaptive codebook search
JP3024467B2 (ja) * 1993-12-10 2000-03-21 日本電気株式会社 音声符号化装置
DE69426860T2 (de) * 1993-12-10 2001-07-19 Nec Corp Sprachcodierer und Verfahren zum Suchen von Codebüchern
US5704003A (en) * 1995-09-19 1997-12-30 Lucent Technologies Inc. RCELP coder
DE19641619C1 (de) * 1996-10-09 1997-06-26 Nokia Mobile Phones Ltd Verfahren zur Synthese eines Rahmens eines Sprachsignals
EP0883107B9 (en) * 1996-11-07 2005-01-26 Matsushita Electric Industrial Co., Ltd Sound source vector generator, voice encoder, and voice decoder
US6385576B2 (en) * 1997-12-24 2002-05-07 Kabushiki Kaisha Toshiba Speech encoding/decoding method using reduced subframe pulse positions having density related to pitch
US6141638A (en) * 1998-05-28 2000-10-31 Motorola, Inc. Method and apparatus for coding an information signal
US7072832B1 (en) * 1998-08-24 2006-07-04 Mindspeed Technologies, Inc. System for speech encoding having an adaptive encoding arrangement
JP4173940B2 (ja) * 1999-03-05 2008-10-29 松下電器産業株式会社 音声符号化装置及び音声符号化方法
AU2547201A (en) * 2000-01-11 2001-07-24 Matsushita Electric Industrial Co., Ltd. Multi-mode voice encoding device and decoding device
US6757654B1 (en) 2000-05-11 2004-06-29 Telefonaktiebolaget Lm Ericsson Forward error correction in speech coding
CA2388439A1 (en) * 2002-05-31 2003-11-30 Voiceage Corporation A method and device for efficient frame erasure concealment in linear predictive based speech codecs
JP4331928B2 (ja) 2002-09-11 2009-09-16 パナソニック株式会社 音声符号化装置、音声復号化装置、及びそれらの方法
US7047188B2 (en) * 2002-11-08 2006-05-16 Motorola, Inc. Method and apparatus for improvement coding of the subframe gain in a speech coding system
CN1735927B (zh) * 2003-01-09 2011-08-31 爱移通全球有限公司 用于高质量语音编码转换的方法和装置
RU2007111717A (ru) * 2004-09-30 2008-10-10 Мацусита Электрик Индастриал Ко., Лтд. (Jp) Устройство масштабируемого кодирования, устройство масштабируемого декодирования и его способ
BRPI0607303A2 (pt) 2005-01-26 2009-08-25 Matsushita Electric Ind Co Ltd dispositivo de codificação de voz e método de codificar voz
EP2099025A4 (en) * 2006-12-14 2010-12-22 Panasonic Corp AUDIO CODING DEVICE AND AUDIO CODING METHOD
US8249860B2 (en) * 2006-12-15 2012-08-21 Panasonic Corporation Adaptive sound source vector quantization unit and adaptive sound source vector quantization method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005513539A (ja) * 2001-12-14 2005-05-12 ノキア コーポレイション 音声信号の効率的コーディングのための信号修正方法
WO2005040749A1 (ja) * 2003-10-23 2005-05-06 Matsushita Electric Industrial Co., Ltd. スペクトル符号化装置、スペクトル復号化装置、音響信号送信装置、音響信号受信装置、およびこれらの方法

Also Published As

Publication number Publication date
US20100106488A1 (en) 2010-04-29
JPWO2008108083A1 (ja) 2010-06-10
US8364472B2 (en) 2013-01-29
JP5596341B2 (ja) 2014-09-24
EP2128855A1 (en) 2009-12-02

Similar Documents

Publication Publication Date Title
WO2008108083A1 (ja) 音声符号化装置および音声符号化方法
JP5190363B2 (ja) 音声復号装置、音声符号化装置、および消失フレーム補償方法
WO2010085064A3 (ko) 움직임 벡터 부호화/복호화 장치 및 방법과 그를 이용한 영상 부호화/복호화 장치 및 방법
WO2018097693A3 (ko) 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 기록 매체
WO2007011653A3 (en) Selectively using multiple entropy models in adaptive coding and decoding
WO2018213565A3 (en) TEXT-SPEECH SYSTEM AND METHOD BASED ON ARTIFICIAL INTELLIGENCE
CA2666546A1 (en) Method and device for coding transition frames in speech signals
MY163359A (en) Method and apparatus for encoding and decoding motion vector based on reduced motion vector predictor candidates
WO2012030193A3 (ko) 영상 부호화 및 복호화 방법과 이를 이용한 장치
CA2636330A1 (en) Method and apparatus for processing an audio signal
WO2004038924A8 (en) Method and apparatus for fast celp parameter mapping
CN102292767A (zh) 立体声音响信号编码装置、立体声音响信号解码装置及它们的编解码方法
WO2020016859A3 (en) Motion prediction based on updated motion vectors
WO2009096715A3 (ko) 오디오 신호의 부호화, 복호화 방법 및 장치
JP2003337600A (ja) 音声符号化復号方式間の符号変換方法および装置とその記憶媒体
WO2009131406A3 (en) Decoding image
WO2008094821A3 (en) Systems and methods for low-complexity mimo detection using leaf-node prediction via look-up tables
WO2003042977A1 (fr) Procede, appareil, programme de conversion et support de stockage de code
HK1094080A1 (en) Predictive coding scheme
CA3012547A1 (en) Apparatus and method for improving a transition from a concealed audio signal portion to a succeeding audio signal portion of an audio signal
JP2008164823A (ja) オーディオデータ処理装置
JP3905706B2 (ja) 音声符号化装置、音声処理装置及び音声処理方法
WO2009096721A3 (en) Method and apparatus for encoding and decoding video signal using motion compensation based on affine transformation
WO2009016816A1 (ja) 音声符号化装置および音声符号化方法
JPH0792999A (ja) 音声の励振信号符号化方法および装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08710510

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2009502461

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2008710510

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 12528880

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 1654/MUMNP/2009

Country of ref document: IN

NENP Non-entry into the national phase

Ref country code: DE