CA2783913C - Off-axis audio suppression in an automobile cabin - Google Patents

Off-axis audio suppression in an automobile cabin Download PDF

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Publication number
CA2783913C
CA2783913C CA2783913A CA2783913A CA2783913C CA 2783913 C CA2783913 C CA 2783913C CA 2783913 A CA2783913 A CA 2783913A CA 2783913 A CA2783913 A CA 2783913A CA 2783913 C CA2783913 C CA 2783913C
Authority
CA
Canada
Prior art keywords
audio
slope
phase difference
target
audio signals
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.)
Active
Application number
CA2783913A
Other languages
English (en)
French (fr)
Other versions
CA2783913A1 (en
Inventor
Mark Ryan Fallat
Phillip Alan Hetherington
Michael Andrew Percy
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.)
BlackBerry Ltd
Original Assignee
2236008 Ontario Inc
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 2236008 Ontario Inc filed Critical 2236008 Ontario Inc
Publication of CA2783913A1 publication Critical patent/CA2783913A1/en
Application granted granted Critical
Publication of CA2783913C publication Critical patent/CA2783913C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • 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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/0208—Noise filtering
    • G10L21/0216—Noise filtering characterised by the method used for estimating noise
    • G10L2021/02161—Number of inputs available containing the signal or the noise to be suppressed
    • G10L2021/02166—Microphone arrays; Beamforming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2410/00—Microphones
    • H04R2410/05—Noise reduction with a separate noise microphone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/13—Acoustic transducers and sound field adaptation in vehicles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S7/00—Indicating arrangements; Control arrangements, e.g. balance control
    • H04S7/30—Control circuits for electronic adaptation of the sound field
    • H04S7/302—Electronic adaptation of stereophonic sound system to listener position or orientation
    • H04S7/303—Tracking of listener position or orientation

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • General Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
CA2783913A 2011-07-29 2012-07-30 Off-axis audio suppression in an automobile cabin Active CA2783913C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP11175926.2 2011-07-29
EP11175926A EP2551849A1 (de) 2011-07-29 2011-07-29 Außerachsige Geräuschunterdrückung im Führerraum eines Kraftfahrzeugs

Publications (2)

Publication Number Publication Date
CA2783913A1 CA2783913A1 (en) 2013-01-29
CA2783913C true CA2783913C (en) 2016-01-26

Family

ID=44720566

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2783913A Active CA2783913C (en) 2011-07-29 2012-07-30 Off-axis audio suppression in an automobile cabin

Country Status (2)

Country Link
EP (1) EP2551849A1 (de)
CA (1) CA2783913C (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015041549A1 (en) * 2013-09-17 2015-03-26 Intel Corporation Adaptive phase difference based noise reduction for automatic speech recognition (asr)
WO2018095545A1 (en) * 2016-11-28 2018-05-31 Huawei Technologies Duesseldorf Gmbh Apparatus and method for unwrapping phase differences
GB2563857A (en) * 2017-06-27 2019-01-02 Nokia Technologies Oy Recording and rendering sound spaces
US11290814B1 (en) 2020-12-15 2022-03-29 Valeo North America, Inc. Method, apparatus, and computer-readable storage medium for modulating an audio output of a microphone array

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5581620A (en) * 1994-04-21 1996-12-03 Brown University Research Foundation Methods and apparatus for adaptive beamforming
JP3906230B2 (ja) * 2005-03-11 2007-04-18 株式会社東芝 音響信号処理装置、音響信号処理方法、音響信号処理プログラム、及び音響信号処理プログラムを記録したコンピュータ読み取り可能な記録媒体
JP4912036B2 (ja) * 2006-05-26 2012-04-04 富士通株式会社 指向性集音装置、指向性集音方法、及びコンピュータプログラム
JP5070873B2 (ja) * 2006-08-09 2012-11-14 富士通株式会社 音源方向推定装置、音源方向推定方法、及びコンピュータプログラム
KR101519104B1 (ko) * 2008-10-30 2015-05-11 삼성전자 주식회사 목적음 검출 장치 및 방법
EP2197219B1 (de) * 2008-12-12 2012-10-24 Nuance Communications, Inc. Verfahren zur Bestimmung einer Verzögerung zur Verzögerungskompensation
JP5493850B2 (ja) * 2009-12-28 2014-05-14 富士通株式会社 信号処理装置、マイクロホン・アレイ装置、信号処理方法、および信号処理プログラム

Also Published As

Publication number Publication date
EP2551849A1 (de) 2013-01-30
CA2783913A1 (en) 2013-01-29

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