+

WO2003015459A3 - Systeme de traitement du son presentant une reponse du gradient arbitraire - Google Patents

Systeme de traitement du son presentant une reponse du gradient arbitraire Download PDF

Info

Publication number
WO2003015459A3
WO2003015459A3 PCT/EP2002/009030 EP0209030W WO03015459A3 WO 2003015459 A3 WO2003015459 A3 WO 2003015459A3 EP 0209030 W EP0209030 W EP 0209030W WO 03015459 A3 WO03015459 A3 WO 03015459A3
Authority
WO
WIPO (PCT)
Prior art keywords
processing system
present
sound processing
microphones
processor
Prior art date
Application number
PCT/EP2002/009030
Other languages
English (en)
Other versions
WO2003015459A2 (fr
Inventor
Erik W Rasmussen
Original Assignee
Rasmussen Digital Aps
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rasmussen Digital Aps filed Critical Rasmussen Digital Aps
Priority to EP02767371A priority Critical patent/EP1415506A2/fr
Publication of WO2003015459A2 publication Critical patent/WO2003015459A2/fr
Publication of WO2003015459A3 publication Critical patent/WO2003015459A3/fr

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

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

Système de traitement du son comprenant au moins un microphone, un processeur audio et au moins un dispositif de sortie. Le processeur audio comprend un formeur de faisceaux analogique, un égaliseur pour microphone et un processeur d'incidence apparente. Sont également décrits deux types de réalisations du processeur d'incidence apparente, un procédé de génération d'onde et un procédé de filtrage avant. Les deux réalisations utilisent les mêmes principes d'estimation des propriétés des ondes individuelles du champ sonore. Grâce à cette invention, il est possible d'appliquer des réponses de directivité arbitraires n'utilisant qu'un petit nombre de microphones, à savoir deux ou trois. Cette invention permet d'obtenir une meilleure réduction du bruit également pour des environnements ayant de nombreuses sources de bruit indépendantes. Cette invention porte, en outre, sur des signaux et des bruits à statistique arbitraire.
PCT/EP2002/009030 2001-08-10 2002-08-12 Systeme de traitement du son presentant une reponse du gradient arbitraire WO2003015459A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02767371A EP1415506A2 (fr) 2001-08-10 2002-08-12 Systeme de traitement du son presentant une reponse du gradient arbitraire

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US92822901A 2001-08-10 2001-08-10
US09/928,229 2001-08-10

Publications (2)

Publication Number Publication Date
WO2003015459A2 WO2003015459A2 (fr) 2003-02-20
WO2003015459A3 true WO2003015459A3 (fr) 2003-11-20

Family

ID=25455914

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/009030 WO2003015459A2 (fr) 2001-08-10 2002-08-12 Systeme de traitement du son presentant une reponse du gradient arbitraire

Country Status (2)

Country Link
EP (1) EP1415506A2 (fr)
WO (1) WO2003015459A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7274794B1 (en) 2001-08-10 2007-09-25 Sonic Innovations, Inc. Sound processing system including forward filter that exhibits arbitrary directivity and gradient response in single wave sound environment
US7415117B2 (en) * 2004-03-02 2008-08-19 Microsoft Corporation System and method for beamforming using a microphone array
GB0720473D0 (en) 2007-10-19 2007-11-28 Univ Surrey Accoustic source separation
US9357307B2 (en) 2011-02-10 2016-05-31 Dolby Laboratories Licensing Corporation Multi-channel wind noise suppression system and method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19540795A1 (de) * 1995-11-02 1997-05-07 Deutsche Telekom Ag Verfahren zur Sprecherlokalisierung mit Hilfe eines Mikrofonarrays
EP0795851A2 (fr) * 1996-03-15 1997-09-17 Kabushiki Kaisha Toshiba Procédé et système de reconnaissance de la parole à type d'entrée par réseau de microphones
EP0883325A2 (fr) * 1997-06-02 1998-12-09 The University Of Melbourne Reseau de processeurs multi-strategie
WO1999045741A2 (fr) * 1998-03-02 1999-09-10 Mwm Acoustics, Llc Systeme de microphone directionnel
EP0942628A2 (fr) * 1998-03-13 1999-09-15 Siemens Hearing Instruments, Inc. Ensemble microphone et procédé de calibration
US6160757A (en) * 1997-09-10 2000-12-12 France Telecom S.A. Antenna formed of a plurality of acoustic pick-ups
EP1065909A2 (fr) * 1999-06-29 2001-01-03 Alexander Goldin Système de microphones suppresseur de bruit
EP1091615A1 (fr) * 1999-10-07 2001-04-11 Zlatan Ribic Procédé et dispositif pour la prise de signaux sonores

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19540795A1 (de) * 1995-11-02 1997-05-07 Deutsche Telekom Ag Verfahren zur Sprecherlokalisierung mit Hilfe eines Mikrofonarrays
EP0795851A2 (fr) * 1996-03-15 1997-09-17 Kabushiki Kaisha Toshiba Procédé et système de reconnaissance de la parole à type d'entrée par réseau de microphones
EP0883325A2 (fr) * 1997-06-02 1998-12-09 The University Of Melbourne Reseau de processeurs multi-strategie
US6160757A (en) * 1997-09-10 2000-12-12 France Telecom S.A. Antenna formed of a plurality of acoustic pick-ups
WO1999045741A2 (fr) * 1998-03-02 1999-09-10 Mwm Acoustics, Llc Systeme de microphone directionnel
EP0942628A2 (fr) * 1998-03-13 1999-09-15 Siemens Hearing Instruments, Inc. Ensemble microphone et procédé de calibration
EP1065909A2 (fr) * 1999-06-29 2001-01-03 Alexander Goldin Système de microphones suppresseur de bruit
EP1091615A1 (fr) * 1999-10-07 2001-04-11 Zlatan Ribic Procédé et dispositif pour la prise de signaux sonores

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KELLERMANN W: "A SELF-STEERING DIGITAL MICROPHONE ARRAY", SPECTRAL ESTIMATION AUDIO AND ELECTROACOUSTICS. TORONTO, APRIL, 14 - 17, 1991, INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH & SIGNAL PROCESSING. ICASSP, NEW YORK, IEEE, US, vol. 5 CONF. 16, 14 May 1991 (1991-05-14), pages 3581 - 3584, XP000242750, ISBN: 0-7803-0003-3 *

Also Published As

Publication number Publication date
WO2003015459A2 (fr) 2003-02-20
EP1415506A2 (fr) 2004-05-06

Similar Documents

Publication Publication Date Title
WO2003015457A3 (fr) Systeme de traitement des sons avec filtre vers l'avant, a directivite arbitraire et reponse de gradient dans un environnement sonore a ondes uniques
EP2629551B1 (fr) Aide auditive binaurale
EP1894439B1 (fr) Procede et systeme de determination de distances entre des haut-parleurs
Van den Bogaert et al. Speech enhancement with multichannel Wiener filter techniques in multimicrophone binaural hearing aids
CN104254029B (zh) 一种具有麦克风的耳机、及改善耳机的音频灵敏度的方法
Teutsch et al. First-and second-order adaptive differential microphone arrays
US10567888B2 (en) Directional hearing aid
US9681246B2 (en) Bionic hearing headset
US20080304677A1 (en) System and method for noise cancellation with motion tracking capability
Schmidt et al. Signal processing for in-car communication systems
CA2252447A1 (fr) Systeme directionnel d'assistance a l'audition
WO1995008248A1 (fr) Systeme de reduction du bruit dans une prothese auditive stereophonique
WO1993013590A1 (fr) Reduction du bruit de fond dans les systemes de communication et amelioration des systemes d'ecoute binauriculaires pour les malentendants
JP2004194315A5 (fr)
DE60234600D1 (de) "mehrkanal-echolöschverfahren, mehrkanal-klangtransferverfahren, stereo-echolöscher, stereo-klangtransfervorrichtung und übertragungsfunktionsberechnungsvorrichtung"
EP1081985A3 (fr) Système de traitement à réseau de microphones pour environnements bruyants à trajets multiples
WO2003015460A3 (fr) Systeme de traitement sonore comprenant un generateur d'ondes a reponses de directivite et de gradient arbitraires
JPH06233388A (ja) 補聴装置
WO2003015459A3 (fr) Systeme de traitement du son presentant une reponse du gradient arbitraire
WO2003015458A3 (fr) 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
TWI702855B (zh) 具濾音器的主動式降噪裝置及耳機
JP6920649B2 (ja) 会話支援システム
Li et al. A two-microphone noise reduction method in highly non-stationary multiple-noise-source environments
Liu et al. Simulation of fixed microphone arrays for directional hearing aids
WO2021061055A1 (fr) Appareil transducteur : positionnement et microphones à rapport signal-bruit élevé

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG UZ VC VN YU ZA ZM ZW

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BY BZ CA CH CN CO CR CU CZ DE DM DZ EC EE ES FI GB GD GE GH HR HU ID IL IN IS JP KE KG KP KR LC LK LR LS LT LU LV MA MD MG MN MW MX MZ NO NZ OM PH PL PT RU SD SE SG SI SK SL TJ TM TN TR TZ UA UG UZ VC VN YU ZA ZM

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ UG ZM ZW AM AZ BY KG KZ RU TJ TM AT BE BG CH CY CZ DK EE ES FI FR GB GR IE IT LU MC PT SE SK TR BF BJ CF CG CI GA GN GQ GW ML MR NE SN TD TG

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2002331237

Country of ref document: AU

WWE Wipo information: entry into national phase

Ref document number: 2002767371

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2002767371

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP

WWW Wipo information: withdrawn in national office

Ref document number: 2002767371

Country of ref document: EP

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载