CN1357136A - 不损失译码器兼容性下低比特率音频编码系统的音质提高 - Google Patents
不损失译码器兼容性下低比特率音频编码系统的音质提高 Download PDFInfo
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- CN1357136A CN1357136A CN00809269A CN00809269A CN1357136A CN 1357136 A CN1357136 A CN 1357136A CN 00809269 A CN00809269 A CN 00809269A CN 00809269 A CN00809269 A CN 00809269A CN 1357136 A CN1357136 A CN 1357136A
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- 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
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
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- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
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- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
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- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
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Abstract
Description
Claims (45)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/337,405 US6226616B1 (en) | 1999-06-21 | 1999-06-21 | Sound quality of established low bit-rate audio coding systems without loss of decoder compatibility |
US09/337,405 | 1999-06-21 |
Publications (2)
Publication Number | Publication Date |
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CN1357136A true CN1357136A (zh) | 2002-07-03 |
CN1154087C CN1154087C (zh) | 2004-06-16 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB008092699A Expired - Lifetime CN1154087C (zh) | 1999-06-21 | 2000-06-19 | 提高低比特率音频编码系统音质的方法、编码器和译码器 |
Country Status (9)
Country | Link |
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US (1) | US6226616B1 (zh) |
EP (2) | EP1204970B1 (zh) |
JP (2) | JP4204227B2 (zh) |
KR (1) | KR100606992B1 (zh) |
CN (1) | CN1154087C (zh) |
AU (1) | AU5745200A (zh) |
HK (1) | HK1043422A1 (zh) |
TW (1) | TW565826B (zh) |
WO (1) | WO2000079520A1 (zh) |
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JP2008020931A (ja) | 2008-01-31 |
EP2228790A2 (en) | 2010-09-15 |
EP2228790B1 (en) | 2013-03-06 |
WO2000079520A1 (en) | 2000-12-28 |
EP1204970B1 (en) | 2017-02-15 |
TW565826B (en) | 2003-12-11 |
KR100606992B1 (ko) | 2006-07-31 |
HK1043422A1 (zh) | 2002-09-13 |
EP2228790A3 (en) | 2010-12-01 |
CN1154087C (zh) | 2004-06-16 |
JP2003502704A (ja) | 2003-01-21 |
US6226616B1 (en) | 2001-05-01 |
EP1204970A1 (en) | 2002-05-15 |
KR20020027364A (ko) | 2002-04-13 |
EP1204970A4 (en) | 2009-07-29 |
AU5745200A (en) | 2001-01-09 |
JP4204227B2 (ja) | 2009-01-07 |
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