WO2003015458A2 - Systeme de traitement de son comprenant un filtre de retroaction faisant preuve d'une directivite arbitraire et d'une reponse aux gradients dans un environnement sonore a ondes multiples - Google Patents
Systeme de traitement de son comprenant un filtre de retroaction faisant preuve d'une directivite arbitraire et d'une reponse aux gradients dans un environnement sonore a ondes multiples Download PDFInfo
- Publication number
- WO2003015458A2 WO2003015458A2 PCT/EP2002/009029 EP0209029W WO03015458A2 WO 2003015458 A2 WO2003015458 A2 WO 2003015458A2 EP 0209029 W EP0209029 W EP 0209029W WO 03015458 A2 WO03015458 A2 WO 03015458A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gain
- wave
- audio processor
- wave parameter
- signal
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/004—Monitoring arrangements; Testing arrangements for microphones
- H04R29/005—Microphone arrays
- H04R29/006—Microphone matching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
- H04R2201/403—Linear arrays of transducers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/40—Arrangements for obtaining a desired directivity characteristic
- H04R25/407—Circuits for combining signals of a plurality of transducers
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02767370A EP1415502A2 (fr) | 2001-08-10 | 2002-08-12 | Systeme de traitement de son comprenant un filtre de retroaction faisant preuve d'une directivite arbitraire et d'une reponse aux gradients dans un environnement sonore a ondes multiples |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US92778401A | 2001-08-10 | 2001-08-10 | |
US09/927,784 | 2001-08-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2003015458A2 true WO2003015458A2 (fr) | 2003-02-20 |
WO2003015458A3 WO2003015458A3 (fr) | 2003-10-23 |
Family
ID=25455251
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/009029 WO2003015458A2 (fr) | 2001-08-10 | 2002-08-12 | Systeme de traitement de son comprenant un filtre de retroaction faisant preuve d'une directivite arbitraire et d'une reponse aux gradients dans un environnement sonore a ondes multiples |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1415502A2 (fr) |
WO (1) | WO2003015458A2 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008061534A1 (fr) * | 2006-11-24 | 2008-05-29 | Rasmussen Digital Aps | Traitement de signaux utilisant un filtre spatial |
EP1931169A1 (fr) * | 2005-09-02 | 2008-06-11 | Japan Advanced Institute of Science and Technology | Post-filtre pour une matrice de microphones |
US9467775B2 (en) | 2011-09-02 | 2016-10-11 | Gn Netcom A/S | Method and a system for noise suppressing an audio signal |
CN117896655A (zh) * | 2024-03-14 | 2024-04-16 | 深圳前海深蕾半导体有限公司 | 均衡分频器电路和终端设备 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3057960A (en) * | 1961-03-13 | 1962-10-09 | Bell Telephone Labor Inc | Normalized sound control system |
US5978490A (en) * | 1996-12-27 | 1999-11-02 | Lg Electronics Inc. | Directivity controlling apparatus |
-
2002
- 2002-08-12 EP EP02767370A patent/EP1415502A2/fr not_active Withdrawn
- 2002-08-12 WO PCT/EP2002/009029 patent/WO2003015458A2/fr not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3057960A (en) * | 1961-03-13 | 1962-10-09 | Bell Telephone Labor Inc | Normalized sound control system |
US5978490A (en) * | 1996-12-27 | 1999-11-02 | Lg Electronics Inc. | Directivity controlling apparatus |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1931169A1 (fr) * | 2005-09-02 | 2008-06-11 | Japan Advanced Institute of Science and Technology | Post-filtre pour une matrice de microphones |
EP1931169A4 (fr) * | 2005-09-02 | 2009-12-16 | Japan Adv Inst Science & Tech | Post-filtre pour une matrice de microphones |
CN101263734B (zh) * | 2005-09-02 | 2012-01-25 | 丰田自动车株式会社 | 麦克风阵列用后置滤波器 |
WO2008061534A1 (fr) * | 2006-11-24 | 2008-05-29 | Rasmussen Digital Aps | Traitement de signaux utilisant un filtre spatial |
AU2007323521B2 (en) * | 2006-11-24 | 2011-02-03 | Sonova Ag | Signal processing using spatial filter |
US8565459B2 (en) | 2006-11-24 | 2013-10-22 | Rasmussen Digital Aps | Signal processing using spatial filter |
US8965003B2 (en) | 2006-11-24 | 2015-02-24 | Rasmussen Digital Aps | Signal processing using spatial filter |
US9467775B2 (en) | 2011-09-02 | 2016-10-11 | Gn Netcom A/S | Method and a system for noise suppressing an audio signal |
CN117896655A (zh) * | 2024-03-14 | 2024-04-16 | 深圳前海深蕾半导体有限公司 | 均衡分频器电路和终端设备 |
Also Published As
Publication number | Publication date |
---|---|
EP1415502A2 (fr) | 2004-05-06 |
WO2003015458A3 (fr) | 2003-10-23 |
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