CA2404863A1 - Method for providing the transmission characteristics of a microphone arrangement and microphone arrangement - Google Patents

Method for providing the transmission characteristics of a microphone arrangement and microphone arrangement Download PDF

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Publication number
CA2404863A1
CA2404863A1 CA002404863A CA2404863A CA2404863A1 CA 2404863 A1 CA2404863 A1 CA 2404863A1 CA 002404863 A CA002404863 A CA 002404863A CA 2404863 A CA2404863 A CA 2404863A CA 2404863 A1 CA2404863 A1 CA 2404863A1
Authority
CA
Canada
Prior art keywords
microphone arrangement
signal
result
providing
transmission characteristics
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.)
Granted
Application number
CA002404863A
Other languages
French (fr)
Other versions
CA2404863C (en
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
Individual
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 Individual filed Critical Individual
Publication of CA2404863A1 publication Critical patent/CA2404863A1/en
Application granted granted Critical
Publication of CA2404863C publication Critical patent/CA2404863C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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

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)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

Two output signals (A1a and A1b) of a microphone arrangement (1) are divided (7), whereby said signals are dif-ferently dependent on the direction of incidence (.PHI.) of acoustic signals. A product from the division result (A7) and the weighting factor (.alpha.) is saturated (12) and subtracted from a signal value (A) which can be inputted. The subtraction result is multiplied with the output signal of the microphone arrangement (1) which is the denominator signal for the division (7). A desired directivity is produced between the result signal (S out) of the multiplication and the direction of incidence (.PHI.) on the microphone arrangement (1) of incident acoustic signals according to the weighting factor (.alpha.) of the saturation value (B) and of the subtraction value (A).
CA002404863A 2000-03-31 2000-03-31 Method for providing the transmission characteristics of a microphone arrangement and microphone arrangement Expired - Fee Related CA2404863C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2000/000190 WO2000033634A2 (en) 2000-03-31 2000-03-31 Method for providing the transmission characteristics of a microphone arrangement and microphone arrangement

Publications (2)

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

Family

ID=4358061

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002404863A Expired - Fee Related CA2404863C (en) 2000-03-31 2000-03-31 Method for providing the transmission characteristics of a microphone arrangement and microphone arrangement

Country Status (7)

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

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
EP1469702B1 (en) * 2004-03-15 2016-11-23 Sonova AG Feedback suppression
US7324651B2 (en) 2004-03-15 2008-01-29 Phonak Ag Feedback suppression
JP5249207B2 (en) * 2006-06-23 2013-07-31 ジーエヌ リザウンド エー／エス Hearing aid with adaptive directional signal processing
EP2095678A1 (en) 2006-11-24 2009-09-02 Rasmussen Digital APS Signal processing using spatial filter
JP5409786B2 (en) * 2009-06-17 2014-02-05 パナソニック株式会社 Hearing aid
WO2011107545A2 (en) * 2010-03-05 2011-09-09 Siemens Medical Instruments Pte. Ltd. Method for adjusting a directional hearing device
EP2699020B1 (en) * 2012-08-17 2016-04-13 Sivantos Pte. Ltd. Method and device for determining a gain factor of a hearing aid
DE102013201043B4 (en) 2012-08-17 2016-03-17 Sivantos Pte. Ltd. Method and device for determining an amplification factor of a hearing aid

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2242790B2 (en) * 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 DIGITAL RECEIVER WITH SPECTRUM EVALUATION
DE3017797A1 (en) * 1980-05-09 1981-11-12 Fried. Krupp Gmbh, 4300 Essen METHOD FOR DETERMINING THE DIRECTIONS
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 (en) * 1996-07-20 2004-07-08 Technische Universität Dresden Arrangement for the objective assessment of the functional state of the human hearing organ

Also Published As

Publication number Publication date
DK1269576T3 (en) 2005-05-17
DE50009746D1 (en) 2005-04-14
AU3414200A (en) 2000-06-26
WO2000033634A3 (en) 2001-05-17
CA2404863C (en) 2009-08-04
JP2003516646A (en) 2003-05-13
EP1269576A1 (en) 2003-01-02
WO2000033634A2 (en) 2000-06-15
EP1269576B1 (en) 2005-03-09
AU2000234142B2 (en) 2005-05-19

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Effective date: 20160331