ATE277402T1 - Audiokodierung mit adaptiver lifterung - Google Patents
Audiokodierung mit adaptiver lifterungInfo
- Publication number
- ATE277402T1 ATE277402T1 AT00949620T AT00949620T ATE277402T1 AT E277402 T1 ATE277402 T1 AT E277402T1 AT 00949620 T AT00949620 T AT 00949620T AT 00949620 T AT00949620 T AT 00949620T AT E277402 T1 ATE277402 T1 AT E277402T1
- Authority
- AT
- Austria
- Prior art keywords
- cepstral
- audio signal
- spectrum
- cepstral coefficients
- fundamental frequency
- Prior art date
Links
- 230000003044 adaptive effect Effects 0.000 title 1
- 230000005236 sound signal Effects 0.000 abstract 3
- 238000001228 spectrum Methods 0.000 abstract 3
- 230000003595 spectral effect Effects 0.000 abstract 2
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000013139 quantization Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
- G10L19/26—Pre-filtering or post-filtering
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; 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
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Signal Processing (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Computational Linguistics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9908637A FR2796193B1 (fr) | 1999-07-05 | 1999-07-05 | Procede et dispositif de codage audio |
| PCT/FR2000/001905 WO2001003117A1 (fr) | 1999-07-05 | 2000-07-04 | Codage audio avec liftrage adaptif |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE277402T1 true ATE277402T1 (de) | 2004-10-15 |
Family
ID=9547706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT00949620T ATE277402T1 (de) | 1999-07-05 | 2000-07-04 | Audiokodierung mit adaptiver lifterung |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1192618B1 (fr) |
| AT (1) | ATE277402T1 (fr) |
| AU (1) | AU6291900A (fr) |
| DE (1) | DE60014084D1 (fr) |
| FR (1) | FR2796193B1 (fr) |
| WO (1) | WO2001003117A1 (fr) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03136100A (ja) * | 1989-10-20 | 1991-06-10 | Canon Inc | 音声処理方法及び装置 |
-
1999
- 1999-07-05 FR FR9908637A patent/FR2796193B1/fr not_active Expired - Fee Related
-
2000
- 2000-07-04 AU AU62919/00A patent/AU6291900A/en not_active Abandoned
- 2000-07-04 AT AT00949620T patent/ATE277402T1/de not_active IP Right Cessation
- 2000-07-04 WO PCT/FR2000/001905 patent/WO2001003117A1/fr active IP Right Grant
- 2000-07-04 EP EP00949620A patent/EP1192618B1/fr not_active Expired - Lifetime
- 2000-07-04 DE DE60014084T patent/DE60014084D1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1192618B1 (fr) | 2004-09-22 |
| AU6291900A (en) | 2001-01-22 |
| FR2796193A1 (fr) | 2001-01-12 |
| FR2796193B1 (fr) | 2001-10-05 |
| EP1192618A1 (fr) | 2002-04-03 |
| DE60014084D1 (de) | 2004-10-28 |
| WO2001003117A1 (fr) | 2001-01-11 |
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| ATE277402T1 (de) | Audiokodierung mit adaptiver lifterung |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |