CA2404863C - Procede pour predeterminer la caracteristique de transmission d'un ensemble microphone et ensemble microphone - Google Patents

Procede pour predeterminer la caracteristique de transmission d'un ensemble microphone et ensemble microphone Download PDF

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Publication number
CA2404863C
CA2404863C CA002404863A CA2404863A CA2404863C CA 2404863 C CA2404863 C CA 2404863C CA 002404863 A CA002404863 A CA 002404863A CA 2404863 A CA2404863 A CA 2404863A CA 2404863 C CA2404863 C CA 2404863C
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CA
Canada
Prior art keywords
arrangement
microphone
output
signal
sub
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
Application number
CA002404863A
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English (en)
Other versions
CA2404863A1 (fr
Inventor
Hans-Ueli Roeck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sonova Holding AG
Original Assignee
Phonak AG
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 Phonak AG filed Critical Phonak AG
Publication of CA2404863A1 publication Critical patent/CA2404863A1/fr
Application granted granted Critical
Publication of CA2404863C publication Critical patent/CA2404863C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • 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

Le procédé selon l'invention consiste à diviser (7) deux signaux de sortie (A1a et A1b) d'un ensemble microphone (1), qui sont des signaux acoustiques dépendant différemment de la direction d'incidence ( phi ). Il consiste également à saturer (12) un produit du résultat (A7) de la division et d'un facteur de saturation ( alpha ), et à le soustraire d'une valeur de signal (A) pouvant être entrée. Le résultat de la soustraction est multiplié (13) par le signal de sortie respectif de l'ensemble microphone (1), qui forme le signal dénominateur pour la division (7). Une directivité souhaitée est produite en fonction du facteur de pondération ( alpha ) de la valeur de saturation (B) et en fonction de la valeur de soustraction (A), entre le signal de résultat (Sout) de la multiplication et la direction d'incidence ( phi ) des signaux acoustiques arrivant sur l'ensemble microphone (1).
CA002404863A 2000-03-31 2000-03-31 Procede pour predeterminer la caracteristique de transmission d'un ensemble microphone et ensemble microphone Expired - Fee Related CA2404863C (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2000/000190 WO2000033634A2 (fr) 2000-03-31 2000-03-31 Procede pour predeterminer la caracteristique de transmission d'un ensemble microphone et ensemble microphone

Publications (2)

Publication Number Publication Date
CA2404863A1 CA2404863A1 (fr) 2002-09-24
CA2404863C true CA2404863C (fr) 2009-08-04

Family

ID=4358061

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002404863A Expired - Fee Related CA2404863C (fr) 2000-03-31 2000-03-31 Procede pour predeterminer la caracteristique de transmission d'un ensemble microphone et ensemble microphone

Country Status (7)

Country Link
EP (1) EP1269576B1 (fr)
JP (1) JP2003516646A (fr)
AU (2) AU2000234142B2 (fr)
CA (1) CA2404863C (fr)
DE (1) DE50009746D1 (fr)
DK (1) DK1269576T3 (fr)
WO (1) WO2000033634A2 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6687187B2 (en) 2000-08-11 2004-02-03 Phonak Ag Method for directional location and locating system
US6449216B1 (en) 2000-08-11 2002-09-10 Phonak Ag Method for directional location and locating system
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
US7076072B2 (en) * 2003-04-09 2006-07-11 Board Of Trustees For The University Of Illinois Systems and methods for interference-suppression with directional sensing patterns
US7324651B2 (en) 2004-03-15 2008-01-29 Phonak Ag Feedback suppression
EP1469702B1 (fr) * 2004-03-15 2016-11-23 Sonova AG Suppression de la réaction acoustique
WO2007147418A1 (fr) * 2006-06-23 2007-12-27 Gn Resound A/S Instrument d'audition avec traitement du signal directionnel adaptatif
US8565459B2 (en) 2006-11-24 2013-10-22 Rasmussen Digital Aps Signal processing using spatial filter
EP2445230A4 (fr) 2009-06-17 2016-05-18 Panasonic Ip Corp America Appareil auditif
WO2011107545A2 (fr) * 2010-03-05 2011-09-09 Siemens Medical Instruments Pte. Ltd. Procédé pour régler un dispositif d'audition à effet directif
EP2699020B1 (fr) * 2012-08-17 2016-04-13 Sivantos Pte. Ltd. Procédé et dispositif de détermination d'un facteur d'amplification d'un appareil de correction auditive
DE102013201043B4 (de) 2012-08-17 2016-03-17 Sivantos Pte. Ltd. Verfahren und Vorrichtung zum Bestimmen eines Verstärkungsfaktors eines Hörhilfegeräts

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2242790B2 (de) * 1972-08-31 1976-10-21 Hißen, Helmut, Dr.-Ing., 5481 Nierendorf; Kosel, Georg, Dr.-Ing., 5483 Bad Neuenahr; Krätzig, Gudrun, 5300 Bonn-Bad Godesberg Digitaler peilempfaenger mit spektrumsauswertung
DE3017797A1 (de) * 1980-05-09 1981-11-12 Fried. Krupp Gmbh, 4300 Essen Verfahren zum bestimmen der einfallsrichtungen
US4752961A (en) * 1985-09-23 1988-06-21 Northern Telecom Limited Microphone arrangement
US5289544A (en) * 1991-12-31 1994-02-22 Audiological Engineering Corporation Method and apparatus for reducing background noise in communication systems and for enhancing binaural hearing systems for the hearing impaired
US5473701A (en) * 1993-11-05 1995-12-05 At&T Corp. Adaptive microphone array
DE19730878B4 (de) * 1996-07-20 2004-07-08 Technische Universität Dresden Anordnung zur objektiven Beurteilung des Funktionszustandes des menschlichen Hörorgans

Also Published As

Publication number Publication date
JP2003516646A (ja) 2003-05-13
DK1269576T3 (da) 2005-05-17
DE50009746D1 (de) 2005-04-14
AU3414200A (en) 2000-06-26
AU2000234142B2 (en) 2005-05-19
CA2404863A1 (fr) 2002-09-24
WO2000033634A3 (fr) 2001-05-17
WO2000033634A2 (fr) 2000-06-15
EP1269576B1 (fr) 2005-03-09
EP1269576A1 (fr) 2003-01-02

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Effective date: 20160331