CN1267890C - 利用自适应滤波改善高频重建编码的设备和方法 - Google Patents
利用自适应滤波改善高频重建编码的设备和方法 Download PDFInfo
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- CN1267890C CN1267890C CNB018205763A CN01820576A CN1267890C CN 1267890 C CN1267890 C CN 1267890C CN B018205763 A CNB018205763 A CN B018205763A CN 01820576 A CN01820576 A CN 01820576A CN 1267890 C CN1267890 C CN 1267890C
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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
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Claims (19)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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SE00041632 | 2000-11-14 | ||
SE0004163A SE0004163D0 (sv) | 2000-11-14 | 2000-11-14 | Enhancing perceptual performance of high frequency reconstruction coding methods by adaptive filtering |
Related Child Applications (1)
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CN2005101160278A Division CN1766993B (zh) | 2000-11-14 | 2001-11-13 | 利用自适应滤波改善高频重建编码方法的感知性能 |
Publications (2)
Publication Number | Publication Date |
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CN1481545A CN1481545A (zh) | 2004-03-10 |
CN1267890C true CN1267890C (zh) | 2006-08-02 |
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CN2005101160278A Expired - Lifetime CN1766993B (zh) | 2000-11-14 | 2001-11-13 | 利用自适应滤波改善高频重建编码方法的感知性能 |
CNB018205763A Expired - Lifetime CN1267890C (zh) | 2000-11-14 | 2001-11-13 | 利用自适应滤波改善高频重建编码的设备和方法 |
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CN2005101160278A Expired - Lifetime CN1766993B (zh) | 2000-11-14 | 2001-11-13 | 利用自适应滤波改善高频重建编码方法的感知性能 |
Country Status (14)
Country | Link |
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US (2) | US7003451B2 (zh) |
EP (1) | EP1342230B1 (zh) |
JP (2) | JP3954495B2 (zh) |
KR (1) | KR100517229B1 (zh) |
CN (2) | CN1766993B (zh) |
AT (1) | ATE264533T1 (zh) |
AU (1) | AU2002214496A1 (zh) |
DE (1) | DE60102838T2 (zh) |
DK (1) | DK1342230T3 (zh) |
ES (1) | ES2215935T3 (zh) |
HK (1) | HK1056429A1 (zh) |
PT (1) | PT1342230E (zh) |
SE (1) | SE0004163D0 (zh) |
WO (1) | WO2002041301A1 (zh) |
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2000
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- 2001-11-13 DE DE60102838T patent/DE60102838T2/de not_active Expired - Lifetime
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- 2001-11-13 JP JP2002543427A patent/JP3954495B2/ja not_active Expired - Lifetime
- 2001-11-13 CN CN2005101160278A patent/CN1766993B/zh not_active Expired - Lifetime
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ATE264533T1 (de) | 2004-04-15 |
DK1342230T3 (da) | 2004-08-02 |
US7433817B2 (en) | 2008-10-07 |
EP1342230B1 (en) | 2004-04-14 |
JP3954495B2 (ja) | 2007-08-08 |
KR20030062338A (ko) | 2003-07-23 |
PT1342230E (pt) | 2004-09-30 |
EP1342230A1 (en) | 2003-09-10 |
AU2002214496A1 (en) | 2002-05-27 |
SE0004163D0 (sv) | 2000-11-14 |
DE60102838T2 (de) | 2005-04-21 |
CN1481545A (zh) | 2004-03-10 |
CN1766993B (zh) | 2011-07-27 |
ES2215935T3 (es) | 2004-10-16 |
JP2006079106A (ja) | 2006-03-23 |
CN1766993A (zh) | 2006-05-03 |
US20060036432A1 (en) | 2006-02-16 |
US20020087304A1 (en) | 2002-07-04 |
HK1056429A1 (en) | 2004-02-13 |
WO2002041301A1 (en) | 2002-05-23 |
US7003451B2 (en) | 2006-02-21 |
DE60102838D1 (de) | 2004-05-19 |
KR100517229B1 (ko) | 2005-09-27 |
JP2004514179A (ja) | 2004-05-13 |
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