CN100394476C - 使用频谱分量耦合和频谱分量再生的改进音频编码系统和方法 - Google Patents
使用频谱分量耦合和频谱分量再生的改进音频编码系统和方法 Download PDFInfo
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- CN100394476C CN100394476C CNB200480011250XA CN200480011250A CN100394476C CN 100394476 C CN100394476 C CN 100394476C CN B200480011250X A CNB200480011250X A CN B200480011250XA CN 200480011250 A CN200480011250 A CN 200480011250A CN 100394476 C CN100394476 C CN 100394476C
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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
- 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
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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
- G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
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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
- 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
Abstract
Description
Claims (43)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US10/434,449 | 2003-05-08 | ||
US10/434,449 US7318035B2 (en) | 2003-05-08 | 2003-05-08 | Audio coding systems and methods using spectral component coupling and spectral component regeneration |
Publications (2)
Publication Number | Publication Date |
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CN1781141A CN1781141A (zh) | 2006-05-31 |
CN100394476C true CN100394476C (zh) | 2008-06-11 |
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Application Number | Title | Priority Date | Filing Date |
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CNB200480011250XA Active CN100394476C (zh) | 2003-05-08 | 2004-04-30 | 使用频谱分量耦合和频谱分量再生的改进音频编码系统和方法 |
Country Status (19)
Country | Link |
---|---|
US (1) | US7318035B2 (zh) |
EP (5) | EP1620845B1 (zh) |
JP (1) | JP4782685B2 (zh) |
KR (1) | KR101085477B1 (zh) |
CN (1) | CN100394476C (zh) |
AU (1) | AU2004239655B2 (zh) |
BR (1) | BRPI0410130B1 (zh) |
CA (1) | CA2521601C (zh) |
DK (1) | DK1620845T3 (zh) |
ES (2) | ES2664397T3 (zh) |
HU (1) | HUE045759T2 (zh) |
IL (1) | IL171287A (zh) |
MX (1) | MXPA05011979A (zh) |
MY (1) | MY138877A (zh) |
PL (1) | PL1620845T3 (zh) |
PT (1) | PT2535895T (zh) |
SI (1) | SI2535895T1 (zh) |
TW (1) | TWI324762B (zh) |
WO (1) | WO2004102532A1 (zh) |
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