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WO2002003749A3 - Adaptive microphone array system with preserving binaural cues - Google Patents

Adaptive microphone array system with preserving binaural cues Download PDF

Info

Publication number
WO2002003749A3
WO2002003749A3 PCT/US2001/018416 US0118416W WO0203749A3 WO 2002003749 A3 WO2002003749 A3 WO 2002003749A3 US 0118416 W US0118416 W US 0118416W WO 0203749 A3 WO0203749 A3 WO 0203749A3
Authority
WO
WIPO (PCT)
Prior art keywords
adaptive filters
binaural cues
microphone array
adaptive
array system
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.)
Ceased
Application number
PCT/US2001/018416
Other languages
French (fr)
Other versions
WO2002003749A2 (en
Inventor
Fa-Long Luo
Jun Yang
Brent Edwards
Nick Michael
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.)
GN Hearing Care Corp
Original Assignee
GN Hearing Care Corp
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 GN Hearing Care Corp filed Critical GN Hearing Care Corp
Priority to AT01942048T priority Critical patent/ATE535103T1/en
Priority to DK01942048.8T priority patent/DK1305975T3/en
Priority to EP01942048A priority patent/EP1305975B1/en
Publication of WO2002003749A2 publication Critical patent/WO2002003749A2/en
Publication of WO2002003749A3 publication Critical patent/WO2002003749A3/en
Anticipated expiration legal-status Critical
Ceased 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
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/55—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using an external connection, either wireless or wired
    • H04R25/552—Binaural
    • 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

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

Abstract

A microphone system using left and right microphones produces good binaural cues as well as noise reduction by using two adaptive filters (56, 58). A noise enhanced reference signal (46) is sent to two different adaptive filters (56, 58). The output of each adaptive filter is combined with the left or right microphone signal, respectively, to produce left and right output signals. These left and right output signals are used as the error signals to modify the coefficients of the adaptive filters (56, 58). By using two adaptive filters, each of the adaptive filters is able to independently operate helping to preserve the binaural cues.
PCT/US2001/018416 2000-06-13 2001-06-05 Adaptive microphone array system with preserving binaural cues Ceased WO2002003749A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT01942048T ATE535103T1 (en) 2000-06-13 2001-06-05 ADAPTIVE MICROPHONE ARRAY SYSTEM WITH BINAURAL CUE PRESERVATION
DK01942048.8T DK1305975T3 (en) 2000-06-13 2001-06-05 Adaptive microphone array system with preservation of binaural cues
EP01942048A EP1305975B1 (en) 2000-06-13 2001-06-05 Adaptive microphone array system with preserving binaural cues

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US59372800A 2000-06-13 2000-06-13
US09/593,728 2000-06-13

Publications (2)

Publication Number Publication Date
WO2002003749A2 WO2002003749A2 (en) 2002-01-10
WO2002003749A3 true WO2002003749A3 (en) 2002-06-20

Family

ID=24375900

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/018416 Ceased WO2002003749A2 (en) 2000-06-13 2001-06-05 Adaptive microphone array system with preserving binaural cues

Country Status (4)

Country Link
EP (1) EP1305975B1 (en)
AT (1) ATE535103T1 (en)
DK (1) DK1305975T3 (en)
WO (1) WO2002003749A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100669820B1 (en) * 2005-05-16 2007-01-16 이시동 Directional Acoustic Wave Receiver
WO2007028250A2 (en) * 2005-09-09 2007-03-15 Mcmaster University Method and device for binaural signal enhancement
GB0609248D0 (en) * 2006-05-10 2006-06-21 Leuven K U Res & Dev Binaural noise reduction preserving interaural transfer functions
DK2611215T3 (en) * 2011-12-30 2016-07-04 Gn Resound As A hearing with highlighted signal
US8891777B2 (en) * 2011-12-30 2014-11-18 Gn Resound A/S Hearing aid with signal enhancement
WO2015120475A1 (en) 2014-02-10 2015-08-13 Bose Corporation Conversation assistance system
CN107005778B (en) * 2014-12-04 2020-11-27 高迪音频实验室公司 Audio signal processing apparatus and method for binaural rendering
US11818548B2 (en) 2019-09-30 2023-11-14 Widex A/S Method of operating a binaural ear level audio system and a binaural ear level audio system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5633935A (en) * 1993-04-13 1997-05-27 Matsushita Electric Industrial Co., Ltd. Stereo ultradirectional microphone apparatus
US5675659A (en) * 1995-12-12 1997-10-07 Motorola Methods and apparatus for blind separation of delayed and filtered sources
US5727066A (en) * 1988-07-08 1998-03-10 Adaptive Audio Limited Sound Reproduction systems

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5727066A (en) * 1988-07-08 1998-03-10 Adaptive Audio Limited Sound Reproduction systems
US5633935A (en) * 1993-04-13 1997-05-27 Matsushita Electric Industrial Co., Ltd. Stereo ultradirectional microphone apparatus
US5675659A (en) * 1995-12-12 1997-10-07 Motorola Methods and apparatus for blind separation of delayed and filtered sources

Also Published As

Publication number Publication date
EP1305975B1 (en) 2011-11-23
EP1305975A4 (en) 2007-09-19
DK1305975T3 (en) 2012-02-13
ATE535103T1 (en) 2011-12-15
WO2002003749A2 (en) 2002-01-10
EP1305975A2 (en) 2003-05-02

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