CA2397084C - Amelioration de l'intelligibilite sonore a l'aide d'un modele psychoacoustique et d'un signal de banc de filtres surechantillonne - Google Patents
Amelioration de l'intelligibilite sonore a l'aide d'un modele psychoacoustique et d'un signal de banc de filtres surechantillonne Download PDFInfo
- Publication number
- CA2397084C CA2397084C CA002397084A CA2397084A CA2397084C CA 2397084 C CA2397084 C CA 2397084C CA 002397084 A CA002397084 A CA 002397084A CA 2397084 A CA2397084 A CA 2397084A CA 2397084 C CA2397084 C CA 2397084C
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- Expired - Lifetime
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Classifications
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- 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
- G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
- G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
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)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
Un système d'amélioration de la netteté phonique est fourni. Ce système utilise un modèle psychoacoustique et de préférence un banc de filtres suréchantillonné où le signal digne d'intérêt qui se trouve en dessous du bruit ambiant est sélectivement amplifié en tant que fonction du niveau et de la fréquence d'entrée afin d'être audible par-dessus le bruit ambiant sans dépasser un niveau de sortie maximal prédéterminé en tant que fonction de fréquence. Le système d'amélioration de la netteté phonique peut être associé avec la suppression active du bruit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002397084A CA2397084C (fr) | 2001-08-07 | 2002-08-07 | Amelioration de l'intelligibilite sonore a l'aide d'un modele psychoacoustique et d'un signal de banc de filtres surechantillonne |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2,354,755 | 2001-08-07 | ||
| CA002354755A CA2354755A1 (fr) | 2001-08-07 | 2001-08-07 | Amelioration de l'intelligibilite des sons a l'aide d'un modele psychoacoustique et d'un banc de filtres surechantillonne |
| CA002397084A CA2397084C (fr) | 2001-08-07 | 2002-08-07 | Amelioration de l'intelligibilite sonore a l'aide d'un modele psychoacoustique et d'un signal de banc de filtres surechantillonne |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2397084A1 CA2397084A1 (fr) | 2003-02-07 |
| CA2397084C true CA2397084C (fr) | 2006-06-13 |
Family
ID=25682675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002397084A Expired - Lifetime CA2397084C (fr) | 2001-08-07 | 2002-08-07 | Amelioration de l'intelligibilite sonore a l'aide d'un modele psychoacoustique et d'un signal de banc de filtres surechantillonne |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2397084C (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1638079B8 (fr) * | 2004-09-15 | 2019-01-23 | GN Hearing A/S | Procédé et système pour la suppression active du bruit |
-
2002
- 2002-08-07 CA CA002397084A patent/CA2397084C/fr not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2397084A1 (fr) | 2003-02-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20220808 |