DE60041790D1 - Verringerung der datenblock-unterbrechungen von quantisierung in einem audio-kodierer - Google Patents
Verringerung der datenblock-unterbrechungen von quantisierung in einem audio-kodiererInfo
- Publication number
- DE60041790D1 DE60041790D1 DE60041790T DE60041790T DE60041790D1 DE 60041790 D1 DE60041790 D1 DE 60041790D1 DE 60041790 T DE60041790 T DE 60041790T DE 60041790 T DE60041790 T DE 60041790T DE 60041790 D1 DE60041790 D1 DE 60041790D1
- Authority
- DE
- Germany
- Prior art keywords
- quantization
- residue
- algorithm
- decompression
- block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- 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
- G10L19/0212—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 using orthogonal transformation
-
- 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
-
- 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
- G10L19/028—Noise substitution, i.e. substituting non-tonal spectral components by noisy source
-
- 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
- G10L19/032—Quantisation or dequantisation of spectral components
- G10L19/038—Vector quantisation, e.g. TwinVQ audio
-
- 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
- G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
-
- 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
- G10L2019/0001—Codebooks
- G10L2019/0012—Smoothing of parameters of the decoder interpolation
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/321,488 US6370502B1 (en) | 1999-05-27 | 1999-05-27 | Method and system for reduction of quantization-induced block-discontinuities and general purpose audio codec |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE60041790D1 true DE60041790D1 (de) | 2009-04-23 |
Family
ID=23250806
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE60014363T Expired - Lifetime DE60014363T2 (de) | 1999-05-27 | 2000-05-25 | Verringerung der von der quantisierung verursachten datenblock-diskontinuitäten in einem audio-kodierer |
| DE60041790T Expired - Lifetime DE60041790D1 (de) | 1999-05-27 | 2000-05-25 | Verringerung der datenblock-unterbrechungen von quantisierung in einem audio-kodierer |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE60014363T Expired - Lifetime DE60014363T2 (de) | 1999-05-27 | 2000-05-25 | Verringerung der von der quantisierung verursachten datenblock-diskontinuitäten in einem audio-kodierer |
Country Status (6)
| Country | Link |
|---|---|
| US (9) | US6370502B1 (de) |
| EP (2) | EP1480201B1 (de) |
| AT (2) | ATE425531T1 (de) |
| CA (1) | CA2373520C (de) |
| DE (2) | DE60014363T2 (de) |
| WO (1) | WO2000074038A1 (de) |
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- 2000-05-25 WO PCT/US2000/014463 patent/WO2000074038A1/en active IP Right Grant
- 2000-05-25 DE DE60014363T patent/DE60014363T2/de not_active Expired - Lifetime
- 2000-05-25 DE DE60041790T patent/DE60041790D1/de not_active Expired - Lifetime
- 2000-05-25 AT AT04076676T patent/ATE425531T1/de not_active IP Right Cessation
- 2000-05-25 CA CA002373520A patent/CA2373520C/en not_active Expired - Lifetime
- 2000-05-25 AT AT00936311T patent/ATE278236T1/de not_active IP Right Cessation
- 2000-05-25 EP EP04076676A patent/EP1480201B1/de not_active Expired - Lifetime
- 2000-05-25 EP EP00936311A patent/EP1181686B1/de not_active Expired - Lifetime
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2002
- 2002-02-04 US US10/061,206 patent/US6704706B2/en not_active Expired - Lifetime
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2005
- 2005-03-09 US US11/075,440 patent/US7181403B2/en not_active Expired - Lifetime
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2006
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2008
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2011
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2012
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- 2012-09-14 US US13/618,414 patent/US8712785B2/en not_active Expired - Lifetime
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| US8010371B2 (en) | 2011-08-30 |
| US6704706B2 (en) | 2004-03-09 |
| DE60014363D1 (de) | 2004-11-04 |
| EP1181686A1 (de) | 2002-02-27 |
| US20070083364A1 (en) | 2007-04-12 |
| ATE425531T1 (de) | 2009-03-15 |
| US20020116199A1 (en) | 2002-08-22 |
| EP1480201B1 (de) | 2009-03-11 |
| US6885993B2 (en) | 2005-04-26 |
| EP1480201A2 (de) | 2004-11-24 |
| US8285558B2 (en) | 2012-10-09 |
| US20050159940A1 (en) | 2005-07-21 |
| ATE278236T1 (de) | 2004-10-15 |
| US20110282677A1 (en) | 2011-11-17 |
| US20020111801A1 (en) | 2002-08-15 |
| US8712785B2 (en) | 2014-04-29 |
| DE60014363T2 (de) | 2005-10-13 |
| US20130173272A1 (en) | 2013-07-04 |
| EP1480201A3 (de) | 2005-01-19 |
| EP1181686B1 (de) | 2004-09-29 |
| US7418395B2 (en) | 2008-08-26 |
| WO2000074038A1 (en) | 2000-12-07 |
| US7181403B2 (en) | 2007-02-20 |
| US20090063164A1 (en) | 2009-03-05 |
| CA2373520C (en) | 2006-01-24 |
| CA2373520A1 (en) | 2000-12-07 |
| US20130173271A1 (en) | 2013-07-04 |
| US6370502B1 (en) | 2002-04-09 |
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| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition |