WO2001072085A3 - Directional processing for multi-microphone system - Google Patents

Directional processing for multi-microphone system Download PDF

Info

Publication number
WO2001072085A3
WO2001072085A3 PCT/US2001/009167 US0109167W WO0172085A3 WO 2001072085 A3 WO2001072085 A3 WO 2001072085A3 US 0109167 W US0109167 W US 0109167W WO 0172085 A3 WO0172085 A3 WO 0172085A3
Authority
WO
WIPO (PCT)
Prior art keywords
directional
approaches
microphone
processing
microphone system
Prior art date
Application number
PCT/US2001/009167
Other languages
French (fr)
Other versions
WO2001072085A2 (en
Inventor
Zezhang Hou
Original Assignee
Audia Technology Inc
Zezhang Hou
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
Priority claimed from US09/788,271 external-priority patent/US20010028718A1/en
Application filed by Audia Technology Inc, Zezhang Hou filed Critical Audia Technology Inc
Priority to AU2001247677A priority Critical patent/AU2001247677A1/en
Priority to DE10195945T priority patent/DE10195945T1/en
Priority to JP2001568657A priority patent/JP2003528508A/en
Publication of WO2001072085A2 publication Critical patent/WO2001072085A2/en
Publication of WO2001072085A3 publication Critical patent/WO2001072085A3/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
    • 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)
  • Neurosurgery (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

Improved approaches for directional processing in multi-microphone processing systems are disclosed. According to one aspect, these approaches operate to control activation/deactivation of directional processing in multi-microphone processing systems. According to another aspect, these improved approaches can adaptively suppress interfering noise in a multi-microphone directional system. These approaches are particularly useful for hearing aid applications in which directional noise suppression is important.
PCT/US2001/009167 2000-03-20 2001-03-20 Directional processing for multi-microphone system WO2001072085A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2001247677A AU2001247677A1 (en) 2000-03-20 2001-03-20 Directional processing for multi-microphone system
DE10195945T DE10195945T1 (en) 2000-03-20 2001-03-20 Straightening processing for a system with several microphones
JP2001568657A JP2003528508A (en) 2000-03-20 2001-03-20 Directional processing for multiple microphone systems

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US19057900P 2000-03-20 2000-03-20
US60/190,579 2000-03-20
US09/788,271 US20010028718A1 (en) 2000-02-17 2001-02-16 Null adaptation in multi-microphone directional system
US09/788,271 2001-02-16

Publications (2)

Publication Number Publication Date
WO2001072085A2 WO2001072085A2 (en) 2001-09-27
WO2001072085A3 true WO2001072085A3 (en) 2003-01-09

Family

ID=26886231

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/009167 WO2001072085A2 (en) 2000-03-20 2001-03-20 Directional processing for multi-microphone system

Country Status (5)

Country Link
JP (1) JP2003528508A (en)
CN (1) CN1426667A (en)
AU (1) AU2001247677A1 (en)
DE (1) DE10195945T1 (en)
WO (1) WO2001072085A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2370176A (en) * 2000-08-10 2002-06-19 James Gregory Stanier A simple microphone unit for the vertical localisation and enhancement of live sounds
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
DK1307072T3 (en) * 2001-10-17 2008-04-14 Siemens Audiologische Technik Method of operation of a hearing aid and hearing aid
DE10327889B3 (en) 2003-06-20 2004-09-16 Siemens Audiologische Technik Gmbh Adjusting hearing aid with microphone system with variable directional characteristic involves adjusting directional characteristic depending on acoustic input signal frequency and hearing threshold
JP4145323B2 (en) * 2003-09-19 2008-09-03 ヴェーデクス・アクティーセルスカプ Directivity control method for sound reception characteristics of hearing aid and signal processing apparatus for hearing aid having controllable directivity characteristics
EP1773100A1 (en) 2005-10-04 2007-04-11 Siemens Audiologische Technik GmbH Adaptation of a directional microphone to long lasting effects
CN101390440B (en) * 2006-02-27 2012-10-10 松下电器产业株式会社 Wearable terminal, processor for controlling wearable terminal and method therefor
EP2036396B1 (en) * 2006-06-23 2009-12-02 GN ReSound A/S A hearing instrument with adaptive directional signal processing
DE102008064430B4 (en) * 2008-12-22 2012-06-21 Siemens Medical Instruments Pte. Ltd. Hearing device with automatic algorithm switching
JP5409786B2 (en) 2009-06-17 2014-02-05 パナソニック株式会社 Hearing aid
JPWO2017056781A1 (en) * 2015-09-30 2018-07-19 ソニー株式会社 Signal processing apparatus, signal processing method, and program
US9894434B2 (en) 2015-12-04 2018-02-13 Sennheiser Electronic Gmbh & Co. Kg Conference system with a microphone array system and a method of speech acquisition in a conference system
US11064291B2 (en) 2015-12-04 2021-07-13 Sennheiser Electronic Gmbh & Co. Kg Microphone array system
CN107271963A (en) * 2017-06-22 2017-10-20 广东美的制冷设备有限公司 The method and apparatus and air conditioner of auditory localization

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS632500A (en) * 1986-06-20 1988-01-07 Matsushita Electric Ind Co Ltd Sound pickup device
EP0856833A2 (en) * 1997-01-29 1998-08-05 Nec Corporation Noise canceling method and apparatus for the same
WO1999003091A1 (en) * 1997-07-11 1999-01-21 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatus for measuring signal level and delay at multiple sensors
JPH11220796A (en) * 1998-01-29 1999-08-10 Ryuichi Fujita Directional reception system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS632500A (en) * 1986-06-20 1988-01-07 Matsushita Electric Ind Co Ltd Sound pickup device
EP0856833A2 (en) * 1997-01-29 1998-08-05 Nec Corporation Noise canceling method and apparatus for the same
WO1999003091A1 (en) * 1997-07-11 1999-01-21 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatus for measuring signal level and delay at multiple sensors
JPH11220796A (en) * 1998-01-29 1999-08-10 Ryuichi Fujita Directional reception system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 012, no. 204 (E - 620) 11 June 1988 (1988-06-11) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 13 30 November 1999 (1999-11-30) *

Also Published As

Publication number Publication date
DE10195945T1 (en) 2003-04-30
JP2003528508A (en) 2003-09-24
AU2001247677A1 (en) 2001-10-03
CN1426667A (en) 2003-06-25
WO2001072085A2 (en) 2001-09-27

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