GB2453118B - Method and apparatus for generating and audio signal from multiple microphones - Google Patents

Method and apparatus for generating and audio signal from multiple microphones

Info

Publication number
GB2453118B
GB2453118B GB0718683A GB0718683A GB2453118B GB 2453118 B GB2453118 B GB 2453118B GB 0718683 A GB0718683 A GB 0718683A GB 0718683 A GB0718683 A GB 0718683A GB 2453118 B GB2453118 B GB 2453118B
Authority
GB
United Kingdom
Prior art keywords
generating
audio signal
multiple microphones
microphones
audio
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
GB0718683A
Other versions
GB2453118A (en
GB0718683D0 (en
Inventor
Holly Francois
David Pearce
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.)
Motorola Solutions Inc
Motorola Mobility LLC
Original Assignee
Motorola Mobility LLC
Motorola 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 Motorola Mobility LLC, Motorola Inc filed Critical Motorola Mobility LLC
Priority to GB0718683A priority Critical patent/GB2453118B/en
Publication of GB0718683D0 publication Critical patent/GB0718683D0/en
Priority to PCT/US2008/075701 priority patent/WO2009042385A1/en
Publication of GB2453118A publication Critical patent/GB2453118A/en
Application granted granted Critical
Publication of GB2453118B publication Critical patent/GB2453118B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • 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
    • 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
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S1/00—Two-channel systems
    • 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
    • G10L2021/02165—Two microphones, one receiving mainly the noise signal and the other one mainly the speech signal
    • 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
    • H04R2410/07—Mechanical or electrical reduction of wind noise generated by wind passing a microphone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/03—Synergistic effects of band splitting and sub-band processing
    • 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
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Circuit For Audible Band Transducer (AREA)
GB0718683A 2007-09-25 2007-09-25 Method and apparatus for generating and audio signal from multiple microphones Active GB2453118B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0718683A GB2453118B (en) 2007-09-25 2007-09-25 Method and apparatus for generating and audio signal from multiple microphones
PCT/US2008/075701 WO2009042385A1 (en) 2007-09-25 2008-09-09 Method and apparatus for generating an audio signal from multiple microphones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0718683A GB2453118B (en) 2007-09-25 2007-09-25 Method and apparatus for generating and audio signal from multiple microphones

Publications (3)

Publication Number Publication Date
GB0718683D0 GB0718683D0 (en) 2007-10-31
GB2453118A GB2453118A (en) 2009-04-01
GB2453118B true GB2453118B (en) 2011-09-21

Family

ID=38670459

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0718683A Active GB2453118B (en) 2007-09-25 2007-09-25 Method and apparatus for generating and audio signal from multiple microphones

Country Status (2)

Country Link
GB (1) GB2453118B (en)
WO (1) WO2009042385A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8724829B2 (en) 2008-10-24 2014-05-13 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for coherence detection
US8620672B2 (en) * 2009-06-09 2013-12-31 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for phase-based processing of multichannel signal
CN103222209B (en) * 2010-11-18 2014-11-26 希尔Ip有限公司 Systems and methods for reducing unwanted sounds in signals received from an arrangement of microphones
US8861745B2 (en) * 2010-12-01 2014-10-14 Cambridge Silicon Radio Limited Wind noise mitigation
CN105792071B (en) * 2011-02-10 2019-07-05 杜比实验室特许公司 The system and method for detecting and inhibiting for wind
WO2020051786A1 (en) 2018-09-12 2020-03-19 Shenzhen Voxtech Co., Ltd. Signal processing device having multiple acoustic-electric transducers
US11665482B2 (en) 2011-12-23 2023-05-30 Shenzhen Shokz Co., Ltd. Bone conduction speaker and compound vibration device thereof
EP2901448A4 (en) * 2012-09-26 2016-03-30 Nokia Technologies Oy A method, an apparatus and a computer program for creating an audio composition signal
DK2765787T3 (en) 2013-02-07 2020-03-09 Oticon As METHOD OF REDUCING NON-CORRECT NOISE IN AN AUDIO TREATMENT UNIT
CN103945291B (en) * 2014-03-05 2017-05-17 北京飞利信科技股份有限公司 Method and device for achieving orientation voice transmission through two microphones
EP3275208B1 (en) 2015-03-25 2019-12-25 Dolby Laboratories Licensing Corporation Sub-band mixing of multiple microphones
GB2555139A (en) 2016-10-21 2018-04-25 Nokia Technologies Oy Detecting the presence of wind noise
IT201700040732A1 (en) * 2017-04-12 2018-10-12 Inst Rundfunktechnik Gmbh VERFAHREN UND VORRICHTUNG ZUM MISCHEN VON N INFORMATIONSSIGNALEN
US10192566B1 (en) 2018-01-17 2019-01-29 Sorenson Ip Holdings, Llc Noise reduction in an audio system
CN110910893B (en) * 2019-11-26 2022-07-22 北京梧桐车联科技有限责任公司 Audio processing method, device and storage medium

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06269084A (en) * 1993-03-16 1994-09-22 Sony Corp Wind noise reduction device
US20020037088A1 (en) * 2000-09-13 2002-03-28 Thomas Dickel Method for operating a hearing aid or hearing aid system, and a hearing aid and hearing aid system
US20040161120A1 (en) * 2003-02-19 2004-08-19 Petersen Kim Spetzler Device and method for detecting wind noise
US20050213778A1 (en) * 2004-03-17 2005-09-29 Markus Buck System for detecting and reducing noise via a microphone array
US20060013412A1 (en) * 2004-07-16 2006-01-19 Alexander Goldin Method and system for reduction of noise in microphone signals
US20070058822A1 (en) * 2005-09-12 2007-03-15 Sony Corporation Noise reducing apparatus, method and program and sound pickup apparatus for electronic equipment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100718829B1 (en) * 1999-12-24 2007-05-17 코닌클리케 필립스 일렉트로닉스 엔.브이. Multichannel audio signal processing device
WO2003083828A1 (en) * 2002-03-27 2003-10-09 Aliphcom Nicrophone and voice activity detection (vad) configurations for use with communication systems

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06269084A (en) * 1993-03-16 1994-09-22 Sony Corp Wind noise reduction device
US20020037088A1 (en) * 2000-09-13 2002-03-28 Thomas Dickel Method for operating a hearing aid or hearing aid system, and a hearing aid and hearing aid system
US20040161120A1 (en) * 2003-02-19 2004-08-19 Petersen Kim Spetzler Device and method for detecting wind noise
US20050213778A1 (en) * 2004-03-17 2005-09-29 Markus Buck System for detecting and reducing noise via a microphone array
US20060013412A1 (en) * 2004-07-16 2006-01-19 Alexander Goldin Method and system for reduction of noise in microphone signals
US20070058822A1 (en) * 2005-09-12 2007-03-15 Sony Corporation Noise reducing apparatus, method and program and sound pickup apparatus for electronic equipment

Also Published As

Publication number Publication date
WO2009042385A4 (en) 2009-05-22
WO2009042385A1 (en) 2009-04-02
GB2453118A (en) 2009-04-01
GB0718683D0 (en) 2007-10-31

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732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20170831 AND 20170906