FR2799601B1 - Dispositif et procede d'annulation de bruit - Google Patents
Dispositif et procede d'annulation de bruitInfo
- Publication number
- FR2799601B1 FR2799601B1 FR9912666A FR9912666A FR2799601B1 FR 2799601 B1 FR2799601 B1 FR 2799601B1 FR 9912666 A FR9912666 A FR 9912666A FR 9912666 A FR9912666 A FR 9912666A FR 2799601 B1 FR2799601 B1 FR 2799601B1
- Authority
- FR
- France
- Prior art keywords
- noise cancellation
- cancellation device
- noise
- cancellation
- 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
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
- G10L21/00—Speech or voice signal processing techniques 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
- G10L21/0208—Noise 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
- G10L21/00—Speech or voice signal processing techniques 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
- G10L21/0208—Noise filtering
- G10L21/0216—Noise filtering characterised by the method used for estimating noise
- G10L2021/02168—Noise filtering characterised by the method used for estimating noise the estimation exclusively taking place during speech pauses
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Telephone Function (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9912666A FR2799601B1 (fr) | 1999-10-08 | 1999-10-08 | Dispositif et procede d'annulation de bruit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9912666A FR2799601B1 (fr) | 1999-10-08 | 1999-10-08 | Dispositif et procede d'annulation de bruit |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2799601A1 FR2799601A1 (fr) | 2001-04-13 |
FR2799601B1 true FR2799601B1 (fr) | 2002-08-02 |
Family
ID=9550797
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9912666A Expired - Fee Related FR2799601B1 (fr) | 1999-10-08 | 1999-10-08 | Dispositif et procede d'annulation de bruit |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2799601B1 (fr) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5742927A (en) * | 1993-02-12 | 1998-04-21 | British Telecommunications Public Limited Company | Noise reduction apparatus using spectral subtraction or scaling and signal attenuation between formant regions |
FR2704111B1 (fr) * | 1993-04-16 | 1995-05-24 | Sextant Avionique | Procédé de détection énergétique de signaux noyés dans du bruit. |
SE506034C2 (sv) * | 1996-02-01 | 1997-11-03 | Ericsson Telefon Ab L M | Förfarande och anordning för förbättring av parametrar representerande brusigt tal |
-
1999
- 1999-10-08 FR FR9912666A patent/FR2799601B1/fr not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2799601A1 (fr) | 2001-04-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |