ATE535103T1 - ADAPTIVE MICROPHONE ARRAY SYSTEM WITH BINAURAL CUE PRESERVATION - Google Patents

ADAPTIVE MICROPHONE ARRAY SYSTEM WITH BINAURAL CUE PRESERVATION

Info

Publication number
ATE535103T1
ATE535103T1 AT01942048T AT01942048T ATE535103T1 AT E535103 T1 ATE535103 T1 AT E535103T1 AT 01942048 T AT01942048 T AT 01942048T AT 01942048 T AT01942048 T AT 01942048T AT E535103 T1 ATE535103 T1 AT E535103T1
Authority
AT
Austria
Prior art keywords
adaptive filters
microphone array
adaptive
array system
binaural cue
Prior art date
Application number
AT01942048T
Other languages
German (de)
Inventor
Fa-Long Luo
Jun Yang
Brent Edwards
Nick Michael
Original Assignee
Gn Resound As
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 Resound As filed Critical Gn Resound As
Application granted granted Critical
Publication of ATE535103T1 publication Critical patent/ATE535103T1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Electric hearing aids
    • H04R25/55—Electric hearing aids 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H04R3/005—Circuits for transducers 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Electric hearing aids
    • 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.
AT01942048T 2000-06-13 2001-06-05 ADAPTIVE MICROPHONE ARRAY SYSTEM WITH BINAURAL CUE PRESERVATION ATE535103T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US59372800A 2000-06-13 2000-06-13
PCT/US2001/018416 WO2002003749A2 (en) 2000-06-13 2001-06-05 Adaptive microphone array system with preserving binaural cues

Publications (1)

Publication Number Publication Date
ATE535103T1 true ATE535103T1 (en) 2011-12-15

Family

ID=24375900

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01942048T ATE535103T1 (en) 2000-06-13 2001-06-05 ADAPTIVE MICROPHONE ARRAY SYSTEM WITH BINAURAL CUE PRESERVATION

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 (9)

* 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
CA2621940C (en) * 2005-09-09 2014-07-29 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
EP2611215B1 (en) * 2011-12-30 2016-04-20 GN Resound A/S A hearing aid with signal enhancement
US8891777B2 (en) 2011-12-30 2014-11-18 Gn Resound A/S Hearing aid with signal enhancement
JP6204618B2 (en) 2014-02-10 2017-09-27 ボーズ・コーポレーションＢｏｓｅ Ｃｏｒｐｏｒａｔｉｏｎ Conversation support system
KR101627647B1 (en) * 2014-12-04 2016-06-07 가우디오디오랩 주식회사 An apparatus and a method for processing audio signal to perform binaural rendering
US11373668B2 (en) * 2019-09-17 2022-06-28 Bose Corporation Enhancement of audio from remote audio sources
EP4038901A1 (en) 2019-09-30 2022-08-10 Widex A/S A method of operating a binaural ear level audio system and a binaural ear level audio system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE68921890T2 (en) * 1988-07-08 1995-07-20 Adaptive Audio Ltd SOUND PLAYING 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
EP1305975A4 (en) 2007-09-19
EP1305975A2 (en) 2003-05-02
EP1305975B1 (en) 2011-11-23
WO2002003749A3 (en) 2002-06-20
DK1305975T3 (en) 2012-02-13
WO2002003749A2 (en) 2002-01-10

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