CN100369112C - 可变速率语音编码 - Google Patents

可变速率语音编码 Download PDF

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Publication number
CN100369112C
CN100369112C CNB998148199A CN99814819A CN100369112C CN 100369112 C CN100369112 C CN 100369112C CN B998148199 A CNB998148199 A CN B998148199A CN 99814819 A CN99814819 A CN 99814819A CN 100369112 C CN100369112 C CN 100369112C
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Prior art keywords
speech
speech signal
codebook
signal
mode
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Expired - Lifetime
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Chinese (zh)
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CN1331826A (zh
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S·曼朱那什
W·加德纳
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Qualcomm Inc
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Qualcomm Inc
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    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • 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
    • G10L19/16—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 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L25/78—Detection of presence or absence of voice signals
    • G10L2025/783—Detection of presence or absence of voice signals based on threshold decision
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L25/93—Discriminating between voiced and unvoiced parts of speech signals
    • G10L2025/935—Mixed voiced class; Transitions

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  • 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)
  • Quality & Reliability (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
CNB998148199A 1998-12-21 1999-12-21 可变速率语音编码 Expired - Lifetime CN100369112C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/217,341 1998-12-21
US09/217,341 US6691084B2 (en) 1998-12-21 1998-12-21 Multiple mode variable rate speech coding

Related Child Applications (2)

Application Number Title Priority Date Filing Date
CN201210082801.8A Division CN102623015B (zh) 1998-12-21 1999-12-21 可变速率语音编码
CN2007101621095A Division CN101178899B (zh) 1998-12-21 1999-12-21 可变速率语音编码

Publications (2)

Publication Number Publication Date
CN1331826A CN1331826A (zh) 2002-01-16
CN100369112C true CN100369112C (zh) 2008-02-13

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Family Applications (3)

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CN201210082801.8A Expired - Lifetime CN102623015B (zh) 1998-12-21 1999-12-21 可变速率语音编码
CN2007101621095A Expired - Lifetime CN101178899B (zh) 1998-12-21 1999-12-21 可变速率语音编码
CNB998148199A Expired - Lifetime CN100369112C (zh) 1998-12-21 1999-12-21 可变速率语音编码

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CN201210082801.8A Expired - Lifetime CN102623015B (zh) 1998-12-21 1999-12-21 可变速率语音编码
CN2007101621095A Expired - Lifetime CN101178899B (zh) 1998-12-21 1999-12-21 可变速率语音编码

Country Status (11)

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US (3) US6691084B2 (US06691084-20040210-M00002.png)
EP (2) EP1141947B1 (US06691084-20040210-M00002.png)
JP (3) JP4927257B2 (US06691084-20040210-M00002.png)
KR (1) KR100679382B1 (US06691084-20040210-M00002.png)
CN (3) CN102623015B (US06691084-20040210-M00002.png)
AT (1) ATE424023T1 (US06691084-20040210-M00002.png)
AU (1) AU2377500A (US06691084-20040210-M00002.png)
DE (1) DE69940477D1 (US06691084-20040210-M00002.png)
ES (1) ES2321147T3 (US06691084-20040210-M00002.png)
HK (1) HK1040807B (US06691084-20040210-M00002.png)
WO (1) WO2000038179A2 (US06691084-20040210-M00002.png)

Cited By (1)

* Cited by examiner, † Cited by third party
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CN106160944A (zh) * 2016-07-07 2016-11-23 广州市恒力安全检测技术有限公司 一种超声波局部放电信号的变速率编码压缩方法

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