NZ502350A - Processing of hearing aid transducer inputs to enhance directional response - Google Patents

Processing of hearing aid transducer inputs to enhance directional response

Info

Publication number
NZ502350A
NZ502350A NZ502350A NZ50235098A NZ502350A NZ 502350 A NZ502350 A NZ 502350A NZ 502350 A NZ502350 A NZ 502350A NZ 50235098 A NZ50235098 A NZ 50235098A NZ 502350 A NZ502350 A NZ 502350A
Authority
NZ
New Zealand
Prior art keywords
processing
hearing aid
directional response
beam forming
transducers
Prior art date
Application number
NZ502350A
Inventor
Joseph Maisano
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 NZ502350A publication Critical patent/NZ502350A/en

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
    • 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
    • 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
    • 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
    • H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
    • H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing

Landscapes

  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Otolaryngology (AREA)
  • Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

For beam forming acoustical signals the phase difference of the output signals of two acoustical/electrical transducers is determined (27) and is multiplied by a factor (30). One of the two output signals of the at least two transducers is phase shifted by an amount according to the multiplication result. This phase shifted signal and the signal of the second transducer are led to a signal processing unit, wherein beam forming on these at least two signals is performed. Thereby, it becomes possible to perform beam forming as if the transducers were mutually distant by more than they physically are.
NZ502350A 1997-07-16 1998-07-14 Processing of hearing aid transducer inputs to enhance directional response NZ502350A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP97112125A EP0802699A3 (en) 1997-07-16 1997-07-16 Method for electronically enlarging the distance between two acoustical/electrical transducers and hearing aid apparatus
PCT/IB1998/001069 WO1999004598A1 (en) 1997-07-16 1998-07-14 Method for electronically selecting the dependency of an output signal from the spatial angle of acoustic signal impingement and hearing aid apparatus

Publications (1)

Publication Number Publication Date
NZ502350A true NZ502350A (en) 2002-10-25

Family

ID=8227067

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ502350A NZ502350A (en) 1997-07-16 1998-07-14 Processing of hearing aid transducer inputs to enhance directional response

Country Status (13)

Country Link
EP (2) EP0802699A3 (en)
JP (1) JP2001510975A (en)
KR (1) KR20010021877A (en)
CN (1) CN1267444A (en)
AT (1) ATE218025T1 (en)
AU (1) AU749652B2 (en)
CA (1) CA2296414C (en)
DE (1) DE69805526T2 (en)
DK (1) DK0997055T3 (en)
IL (1) IL133999A (en)
NZ (1) NZ502350A (en)
TR (1) TR200000119T2 (en)
WO (1) WO1999004598A1 (en)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6987856B1 (en) 1996-06-19 2006-01-17 Board Of Trustees Of The University Of Illinois Binaural signal processing techniques
WO2000019770A1 (en) * 1998-09-29 2000-04-06 Siemens Audiologische Technik Gmbh Hearing aid and method for processing microphone signals in a hearing aid
EP1035752A1 (en) * 1999-03-05 2000-09-13 Phonak Ag Method for shaping the spatial reception amplification characteristic of a converter arrangement and converter arrangement
US6307901B1 (en) * 2000-04-24 2001-10-23 Motorola, Inc. Turbo decoder with decision feedback equalization
US7206423B1 (en) 2000-05-10 2007-04-17 Board Of Trustees Of University Of Illinois Intrabody communication for a hearing aid
CN1440628A (en) * 2000-05-10 2003-09-03 伊利诺伊大学评议会 Interference suppression technologies
US6947570B2 (en) 2001-04-18 2005-09-20 Phonak Ag Method for analyzing an acoustical environment and a system to do so
US7502479B2 (en) 2001-04-18 2009-03-10 Phonak Ag Method for analyzing an acoustical environment and a system to do so
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
CA2420989C (en) * 2002-03-08 2006-12-05 Gennum Corporation Low-noise directional microphone system
DK1326478T3 (en) 2003-03-07 2014-12-08 Phonak Ag Method for producing control signals and binaural hearing device system
US8027495B2 (en) 2003-03-07 2011-09-27 Phonak Ag Binaural hearing device and method for controlling a hearing device system
US20040175008A1 (en) 2003-03-07 2004-09-09 Hans-Ueli Roeck Method for producing control signals, method of controlling signal and a hearing device
EP1320281B1 (en) 2003-03-07 2013-08-07 Phonak Ag Binaural hearing device and method for controlling such a hearing device
US7945064B2 (en) 2003-04-09 2011-05-17 Board Of Trustees Of The University Of Illinois Intrabody communication with ultrasound
DE10331956C5 (en) 2003-07-16 2010-11-18 Siemens Audiologische Technik Gmbh Hearing aid and method for operating a hearing aid with a microphone system, in which different Richtcharaktistiken are adjustable
US8275147B2 (en) 2004-05-05 2012-09-25 Deka Products Limited Partnership Selective shaping of communication signals
EP1513371B1 (en) 2004-10-19 2012-08-15 Phonak Ag Method for operating a hearing device as well as a hearing device
US7619563B2 (en) 2005-08-26 2009-11-17 Step Communications Corporation Beam former using phase difference enhancement
US7472041B2 (en) * 2005-08-26 2008-12-30 Step Communications Corporation Method and apparatus for accommodating device and/or signal mismatch in a sensor array
US7415372B2 (en) 2005-08-26 2008-08-19 Step Communications Corporation Method and apparatus for improving noise discrimination in multiple sensor pairs
DE102006049870B4 (en) * 2006-10-23 2016-05-19 Sivantos Gmbh Differential directional microphone system and hearing aid with such a differential directional microphone system
US8103030B2 (en) 2006-10-23 2012-01-24 Siemens Audiologische Technik Gmbh Differential directional microphone system and hearing aid device with such a differential directional microphone system
EP2095678A1 (en) 2006-11-24 2009-09-02 Rasmussen Digital APS Signal processing using spatial filter
CN101911722B (en) 2007-11-13 2013-10-30 Akg声学有限公司 Microphone arrangement, having two pressure gradient transducers
EP2208362B1 (en) * 2007-11-13 2011-07-27 AKG Acoustics GmbH Method for synthesizing a microphone signal
WO2009105793A1 (en) 2008-02-26 2009-09-03 Akg Acoustics Gmbh Transducer assembly
JP2010124370A (en) 2008-11-21 2010-06-03 Fujitsu Ltd Signal processing device, signal processing method, and signal processing program
JP5388379B2 (en) * 2009-04-28 2014-01-15 パナソニック株式会社 Hearing aid and hearing aid method
JP5272920B2 (en) * 2009-06-23 2013-08-28 富士通株式会社 Signal processing apparatus, signal processing method, and signal processing program
JP5368272B2 (en) * 2009-11-20 2013-12-18 ジェイ・アール・シー特機株式会社 Acoustic signal processing device
JP5493850B2 (en) * 2009-12-28 2014-05-14 富士通株式会社 Signal processing apparatus, microphone array apparatus, signal processing method, and signal processing program
GB2575491A (en) * 2018-07-12 2020-01-15 Centricam Tech Limited A microphone system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4751738A (en) * 1984-11-29 1988-06-14 The Board Of Trustees Of The Leland Stanford Junior University Directional hearing aid
JPH0579899A (en) * 1991-09-24 1993-03-30 Ono Sokki Co Ltd Acoustic intensity measuring apparatus
FR2687496B1 (en) * 1992-02-18 1994-04-01 Alcatel Radiotelephone METHOD FOR REDUCING ACOUSTIC NOISE IN A SPEAKING SIGNAL.
US5473701A (en) * 1993-11-05 1995-12-05 At&T Corp. Adaptive microphone array

Also Published As

Publication number Publication date
CA2296414A1 (en) 1999-01-28
KR20010021877A (en) 2001-03-15
DK0997055T3 (en) 2002-07-22
IL133999A (en) 2004-03-28
DE69805526D1 (en) 2002-06-27
EP0802699A2 (en) 1997-10-22
JP2001510975A (en) 2001-08-07
EP0802699A3 (en) 1998-02-25
AU7928198A (en) 1999-02-10
IL133999A0 (en) 2001-04-30
AU749652B2 (en) 2002-06-27
WO1999004598A1 (en) 1999-01-28
EP0997055B1 (en) 2002-05-22
TR200000119T2 (en) 2000-05-22
CA2296414C (en) 2005-03-15
CN1267444A (en) 2000-09-20
EP0997055A1 (en) 2000-05-03
DE69805526T2 (en) 2002-11-28
ATE218025T1 (en) 2002-06-15

Similar Documents

Publication Publication Date Title
NZ502350A (en) Processing of hearing aid transducer inputs to enhance directional response
CA2150819A1 (en) Gradient Directional Microphone System and Method Therefor
NZ502883A (en) Amplification directional characteristic for deaf aid set established by electronic filtering in accordance with acoustic reception delay at twin transducers
EP0847225A3 (en) Electroacoustical transducing
CA2186416A1 (en) Method and apparatus for multi-channel acoustic echo cancellation
CA2308156A1 (en) Hearing aid comprising an array of microphones
EP0298658A3 (en) Computational apparatus
WO2003034780A8 (en) Signal processing device for acoustic transducer array
ATE53734T1 (en) DIRECTIONAL MIC ARRANGEMENT.
EP0342782A3 (en) Electroacoustic system with electronic filters
HK1008643A1 (en) Musical instruments incorporating loudspeakers
WO2002043437A3 (en) Wave field synthesys sound reproduction system using a distributed mode panel
EP0949845A3 (en) Qsound surround synthesis from stereo
EP0325175A3 (en) Multi-channel stereophonic system
HK1016252A1 (en) Acoustic transducer components.
AU1881897A (en) Acoustic element and method for sound processing
WO2001052596A3 (en) A method for analyzing an acoustical environment and a system to do so
EP0744881A3 (en) Headphone reproducing apparatus
CA2117545A1 (en) Voice Canceler with Simulated Stereo Output
EP0635934A3 (en) Constant-amplitude wave combination type amplifier
JPS57185794A (en) Digital speaker system
AU6427000A (en) Signal processing unit
JPH04184285A (en) Processing signal
AU2670201A (en) Analysing signals
JPS57212900A (en) Reverberation adding device

Legal Events

Date Code Title Description
PSEA Patent sealed