FR2824432B1 - Procede d'extraction de parametres d'un signal audio, et codeur mettant en oeuvre un tel procede - Google Patents
Procede d'extraction de parametres d'un signal audio, et codeur mettant en oeuvre un tel procedeInfo
- Publication number
- FR2824432B1 FR2824432B1 FR0106073A FR0106073A FR2824432B1 FR 2824432 B1 FR2824432 B1 FR 2824432B1 FR 0106073 A FR0106073 A FR 0106073A FR 0106073 A FR0106073 A FR 0106073A FR 2824432 B1 FR2824432 B1 FR 2824432B1
- Authority
- FR
- France
- Prior art keywords
- audio signal
- extracting parameters
- encoder implementing
- encoder
- implementing
- 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 - Fee Related
Links
- 230000005236 sound signal Effects 0.000 title 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
- G10L19/02—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)
- Spectroscopy & Molecular Physics (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0106073A FR2824432B1 (fr) | 2001-05-07 | 2001-05-07 | Procede d'extraction de parametres d'un signal audio, et codeur mettant en oeuvre un tel procede |
| PCT/FR2002/001486 WO2002091362A1 (fr) | 2001-05-07 | 2002-04-29 | Procede d'extraction de parametres d'un signal audio, et codeur mettant en oeuvre un tel procede |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0106073A FR2824432B1 (fr) | 2001-05-07 | 2001-05-07 | Procede d'extraction de parametres d'un signal audio, et codeur mettant en oeuvre un tel procede |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2824432A1 FR2824432A1 (fr) | 2002-11-08 |
| FR2824432B1 true FR2824432B1 (fr) | 2005-04-08 |
Family
ID=8863045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0106073A Expired - Fee Related FR2824432B1 (fr) | 2001-05-07 | 2001-05-07 | Procede d'extraction de parametres d'un signal audio, et codeur mettant en oeuvre un tel procede |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2824432B1 (fr) |
| WO (1) | WO2002091362A1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006005337A1 (fr) * | 2004-06-11 | 2006-01-19 | Nanonord A/S | Procede d'analyse de frequences fondamentale et application de ce procede |
| KR100868763B1 (ko) * | 2006-12-04 | 2008-11-13 | 삼성전자주식회사 | 오디오 신호의 중요 주파수 성분 추출 방법 및 장치와 이를이용한 오디오 신호의 부호화/복호화 방법 및 장치 |
| CN101556799B (zh) * | 2009-05-14 | 2013-08-28 | 华为技术有限公司 | 一种音频解码方法和音频解码器 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5754974A (en) * | 1995-02-22 | 1998-05-19 | Digital Voice Systems, Inc | Spectral magnitude representation for multi-band excitation speech coders |
| US6098037A (en) * | 1998-05-19 | 2000-08-01 | Texas Instruments Incorporated | Formant weighted vector quantization of LPC excitation harmonic spectral amplitudes |
-
2001
- 2001-05-07 FR FR0106073A patent/FR2824432B1/fr not_active Expired - Fee Related
-
2002
- 2002-04-29 WO PCT/FR2002/001486 patent/WO2002091362A1/fr not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| WO2002091362A1 (fr) | 2002-11-14 |
| FR2824432A1 (fr) | 2002-11-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |
Effective date: 20140131 |