JP4927257B2 - 可変レートスピーチ符号化 - Google Patents
可変レートスピーチ符号化 Download PDFInfo
- Publication number
- JP4927257B2 JP4927257B2 JP2000590164A JP2000590164A JP4927257B2 JP 4927257 B2 JP4927257 B2 JP 4927257B2 JP 2000590164 A JP2000590164 A JP 2000590164A JP 2000590164 A JP2000590164 A JP 2000590164A JP 4927257 B2 JP4927257 B2 JP 4927257B2
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- JP
- Japan
- Prior art keywords
- speech
- active
- codebook
- speech signal
- mode
- Prior art date
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- Expired - Lifetime
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Classifications
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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
Applications Claiming Priority (3)
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 |
PCT/US1999/030587 WO2000038179A2 (en) | 1998-12-21 | 1999-12-21 | Variable rate speech coding |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011002269A Division JP2011123506A (ja) | 1998-12-21 | 2011-01-07 | 可変レートスピーチ符号化 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2002533772A JP2002533772A (ja) | 2002-10-08 |
JP2002533772A5 JP2002533772A5 (US06691084-20040210-M00001.png) | 2007-04-19 |
JP4927257B2 true JP4927257B2 (ja) | 2012-05-09 |
Family
ID=22810659
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000590164A Expired - Lifetime JP4927257B2 (ja) | 1998-12-21 | 1999-12-21 | 可変レートスピーチ符号化 |
JP2011002269A Withdrawn JP2011123506A (ja) | 1998-12-21 | 2011-01-07 | 可変レートスピーチ符号化 |
JP2013087419A Expired - Lifetime JP5373217B2 (ja) | 1998-12-21 | 2013-04-18 | 可変レートスピーチ符号化 |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011002269A Withdrawn JP2011123506A (ja) | 1998-12-21 | 2011-01-07 | 可変レートスピーチ符号化 |
JP2013087419A Expired - Lifetime JP5373217B2 (ja) | 1998-12-21 | 2013-04-18 | 可変レートスピーチ符号化 |
Country Status (11)
Families Citing this family (112)
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US7496505B2 (en) | 2009-02-24 |
EP2085965A1 (en) | 2009-08-05 |
KR100679382B1 (ko) | 2007-02-28 |
ES2321147T3 (es) | 2009-06-02 |
EP1141947B1 (en) | 2009-02-25 |
CN100369112C (zh) | 2008-02-13 |
HK1040807B (zh) | 2008-08-01 |
WO2000038179A3 (en) | 2000-11-09 |
EP1141947A2 (en) | 2001-10-10 |
US20040102969A1 (en) | 2004-05-27 |
US7136812B2 (en) | 2006-11-14 |
CN101178899A (zh) | 2008-05-14 |
CN102623015B (zh) | 2015-05-06 |
CN102623015A (zh) | 2012-08-01 |
WO2000038179A2 (en) | 2000-06-29 |
US20070179783A1 (en) | 2007-08-02 |
AU2377500A (en) | 2000-07-12 |
US6691084B2 (en) | 2004-02-10 |
US20020099548A1 (en) | 2002-07-25 |
JP2011123506A (ja) | 2011-06-23 |
HK1040807A1 (en) | 2002-06-21 |
ATE424023T1 (de) | 2009-03-15 |
JP2002533772A (ja) | 2002-10-08 |
DE69940477D1 (de) | 2009-04-09 |
JP2013178545A (ja) | 2013-09-09 |
JP5373217B2 (ja) | 2013-12-18 |
CN1331826A (zh) | 2002-01-16 |
CN101178899B (zh) | 2012-07-04 |
KR20010093210A (ko) | 2001-10-27 |
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