DE69615227D1 - Sprachkodierer mit aus aktuellen und vorhergehenden Rahmen extrahierten Merkmalen - Google Patents

Sprachkodierer mit aus aktuellen und vorhergehenden Rahmen extrahierten Merkmalen

Info

Publication number
DE69615227D1
DE69615227D1 DE69615227T DE69615227T DE69615227D1 DE 69615227 D1 DE69615227 D1 DE 69615227D1 DE 69615227 T DE69615227 T DE 69615227T DE 69615227 T DE69615227 T DE 69615227T DE 69615227 D1 DE69615227 D1 DE 69615227D1
Authority
DE
Germany
Prior art keywords
current
features extracted
previous frames
speech encoder
speech
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.)
Expired - Lifetime
Application number
DE69615227T
Other languages
English (en)
Other versions
DE69615227T2 (de
Inventor
Shin-Ichi Taumi
Kazunori Ozawa
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.)
NEC Corp
Original Assignee
NEC 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
Priority claimed from JP07004921A external-priority patent/JP3089967B2/ja
Priority claimed from JP7013072A external-priority patent/JP3047761B2/ja
Application filed by NEC Corp filed Critical NEC Corp
Publication of DE69615227D1 publication Critical patent/DE69615227D1/de
Application granted granted Critical
Publication of DE69615227T2 publication Critical patent/DE69615227T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • 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
    • G10L19/0018—Speech coding using phonetic or linguistical decoding of the source; Reconstruction using text-to-speech synthesis
    • 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/90—Pitch determination of speech signals
    • G10L2025/906—Pitch tracking

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE69615227T 1995-01-17 1996-01-16 Sprachkodierer mit aus aktuellen und vorhergehenden Rahmen extrahierten Merkmalen Expired - Lifetime DE69615227T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP07004921A JP3089967B2 (ja) 1995-01-17 1995-01-17 音声符号化装置
JP7013072A JP3047761B2 (ja) 1995-01-30 1995-01-30 音声符号化装置

Publications (2)

Publication Number Publication Date
DE69615227D1 true DE69615227D1 (de) 2001-10-18
DE69615227T2 DE69615227T2 (de) 2002-04-25

Family

ID=26338778

Family Applications (3)

Application Number Title Priority Date Filing Date
DE69615227T Expired - Lifetime DE69615227T2 (de) 1995-01-17 1996-01-16 Sprachkodierer mit aus aktuellen und vorhergehenden Rahmen extrahierten Merkmalen
DE69609089T Expired - Lifetime DE69609089T2 (de) 1995-01-17 1996-01-16 Sprachkodierer mit aus aktuellen und vorhergehenden Rahmen extrahierten Merkmalen
DE69615870T Expired - Lifetime DE69615870T2 (de) 1995-01-17 1996-01-16 Sprachkodierer mit aus aktuellen und vorhergehenden Rahmen extrahierten Merkmalen

Family Applications After (2)

Application Number Title Priority Date Filing Date
DE69609089T Expired - Lifetime DE69609089T2 (de) 1995-01-17 1996-01-16 Sprachkodierer mit aus aktuellen und vorhergehenden Rahmen extrahierten Merkmalen
DE69615870T Expired - Lifetime DE69615870T2 (de) 1995-01-17 1996-01-16 Sprachkodierer mit aus aktuellen und vorhergehenden Rahmen extrahierten Merkmalen

Country Status (3)

Country Link
US (1) US5787389A (de)
EP (3) EP0723258B1 (de)
DE (3) DE69615227T2 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09230896A (ja) * 1996-02-28 1997-09-05 Sony Corp 音声合成装置
JP3268731B2 (ja) 1996-10-09 2002-03-25 沖電気工業株式会社 光電変換素子
JP3067676B2 (ja) * 1997-02-13 2000-07-17 日本電気株式会社 Ｌｓｐの予測符号化装置及び方法
JP3147807B2 (ja) * 1997-03-21 2001-03-19 日本電気株式会社 信号符号化装置
CA2233896C (en) * 1997-04-09 2002-11-19 Kazunori Ozawa Signal coding system
US6058359A (en) * 1998-03-04 2000-05-02 Telefonaktiebolaget L M Ericsson Speech coding including soft adaptability feature
CN1494055A (zh) * 1997-12-24 2004-05-05 ������������ʽ���� 声音编码方法和声音译码方法以及声音编码装置和声音译码装置
US7003121B1 (en) 1998-04-08 2006-02-21 Bang & Olufsen Technology A/S Method and an apparatus for processing an auscultation signal
US7117146B2 (en) * 1998-08-24 2006-10-03 Mindspeed Technologies, Inc. System for improved use of pitch enhancement with subcodebooks
US6311154B1 (en) 1998-12-30 2001-10-30 Nokia Mobile Phones Limited Adaptive windows for analysis-by-synthesis CELP-type speech coding
JP3594854B2 (ja) 1999-11-08 2004-12-02 三菱電機株式会社 音声符号化装置及び音声復号化装置
USRE43209E1 (en) 1999-11-08 2012-02-21 Mitsubishi Denki Kabushiki Kaisha Speech coding apparatus and speech decoding apparatus
JP2002162998A (ja) * 2000-11-28 2002-06-07 Fujitsu Ltd パケット修復処理を伴なう音声符号化方法
JP5511372B2 (ja) * 2007-03-02 2014-06-04 パナソニック株式会社 適応音源ベクトル量子化装置および適応音源ベクトル量子化方法
KR20100006492A (ko) * 2008-07-09 2010-01-19 삼성전자주식회사 부호화 방식 결정 방법 및 장치
CN103229235B (zh) * 2010-11-24 2015-12-09 Lg电子株式会社 语音信号编码方法和语音信号解码方法
CN107452391B (zh) 2014-04-29 2020-08-25 华为技术有限公司 音频编码方法及相关装置
CN105741838B (zh) * 2016-01-20 2019-10-15 百度在线网络技术（北京）有限公司 语音唤醒方法及装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2940005B2 (ja) * 1989-07-20 1999-08-25 日本電気株式会社 音声符号化装置
JPH0398318A (ja) * 1989-09-11 1991-04-23 Fujitsu Ltd 音声符号化方式
US5226108A (en) * 1990-09-20 1993-07-06 Digital Voice Systems, Inc. Processing a speech signal with estimated pitch
JP3114197B2 (ja) * 1990-11-02 2000-12-04 日本電気株式会社 音声パラメータ符号化方法
JP3151874B2 (ja) * 1991-02-26 2001-04-03 日本電気株式会社 音声パラメータ符号化方式および装置
JP3143956B2 (ja) * 1991-06-27 2001-03-07 日本電気株式会社 音声パラメータ符号化方式
US5371853A (en) * 1991-10-28 1994-12-06 University Of Maryland At College Park Method and system for CELP speech coding and codebook for use therewith
US5495555A (en) * 1992-06-01 1996-02-27 Hughes Aircraft Company High quality low bit rate celp-based speech codec
US5327520A (en) * 1992-06-04 1994-07-05 At&T Bell Laboratories Method of use of voice message coder/decoder
JP2746039B2 (ja) * 1993-01-22 1998-04-28 日本電気株式会社 音声符号化方式
IT1270439B (it) * 1993-06-10 1997-05-05 Sip Procedimento e dispositivo per la quantizzazione dei parametri spettrali in codificatori numerici della voce
US5602961A (en) * 1994-05-31 1997-02-11 Alaris, Inc. Method and apparatus for speech compression using multi-mode code excited linear predictive coding
US5751903A (en) * 1994-12-19 1998-05-12 Hughes Electronics Low rate multi-mode CELP codec that encodes line SPECTRAL frequencies utilizing an offset

Also Published As

Publication number Publication date
DE69609089T2 (de) 2000-11-16
EP0944037A1 (de) 1999-09-22
EP0723258A1 (de) 1996-07-24
EP0944038A1 (de) 1999-09-22
EP0944038B1 (de) 2001-09-12
EP0723258B1 (de) 2000-07-05
US5787389A (en) 1998-07-28
DE69615227T2 (de) 2002-04-25
DE69615870D1 (de) 2001-11-15
DE69615870T2 (de) 2002-04-04
EP0944037B1 (de) 2001-10-10
DE69609089D1 (de) 2000-08-10

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