ATE321332T1 - Virtuelle mikrophonanordnung - Google Patents

Virtuelle mikrophonanordnung

Info

Publication number
ATE321332T1
ATE321332T1 AT03360044T AT03360044T ATE321332T1 AT E321332 T1 ATE321332 T1 AT E321332T1 AT 03360044 T AT03360044 T AT 03360044T AT 03360044 T AT03360044 T AT 03360044T AT E321332 T1 ATE321332 T1 AT E321332T1
Authority
AT
Austria
Prior art keywords
acoustic signal
received acoustic
signal
virtual microphone
quality
Prior art date
Application number
AT03360044T
Other languages
English (en)
Inventor
Michael Walker
Original Assignee
Cit Alcatel
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 Cit Alcatel filed Critical Cit Alcatel
Application granted granted Critical
Publication of ATE321332T1 publication Critical patent/ATE321332T1/de

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
    • H04R3/00—Circuits for transducers
    • H04R3/005—Circuits for transducers 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
    • G10L2021/02082—Noise filtering the noise being echo, reverberation of the speech
    • 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
    • G10L2021/02163—Only one microphone

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)
  • Circuit For Audible Band Transducer (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Stereophonic Arrangements (AREA)
AT03360044T 2003-03-31 2003-03-31 Virtuelle mikrophonanordnung ATE321332T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03360044A EP1465159B1 (de) 2003-03-31 2003-03-31 Virtuelle Mikrophonanordnung

Publications (1)

Publication Number Publication Date
ATE321332T1 true ATE321332T1 (de) 2006-04-15

Family

ID=32842879

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03360044T ATE321332T1 (de) 2003-03-31 2003-03-31 Virtuelle mikrophonanordnung

Country Status (4)

Country Link
US (1) US20040204933A1 (de)
EP (1) EP1465159B1 (de)
AT (1) ATE321332T1 (de)
DE (1) DE60304147T2 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4158533B2 (ja) * 2003-01-21 2008-10-01 ソニー株式会社 データの記録、送信または再生に関する方法並びに装置
EP1885154B1 (de) * 2006-08-01 2013-07-03 Nuance Communications, Inc. Enthallung eines Mikrofonsignals
US8036767B2 (en) 2006-09-20 2011-10-11 Harman International Industries, Incorporated System for extracting and changing the reverberant content of an audio input signal
US7953233B2 (en) * 2007-03-20 2011-05-31 National Semiconductor Corporation Synchronous detection and calibration system and method for differential acoustic sensors
US20090018826A1 (en) * 2007-07-13 2009-01-15 Berlin Andrew A Methods, Systems and Devices for Speech Transduction
DE102008055760A1 (de) * 2008-11-04 2010-05-20 Siemens Medical Instruments Pte. Ltd. Adaptives Mikrofonsystem für ein Hörgerät und zugehöriges Verfahren zum Betrieb
CN102687536B (zh) 2009-10-05 2017-03-08 哈曼国际工业有限公司 用于音频信号的空间提取的系统
JP2012078422A (ja) * 2010-09-30 2012-04-19 Roland Corp 音信号処理装置
US9947318B2 (en) * 2014-10-03 2018-04-17 2236008 Ontario Inc. System and method for processing an audio signal captured from a microphone
US9691378B1 (en) * 2015-11-05 2017-06-27 Amazon Technologies, Inc. Methods and devices for selectively ignoring captured audio data
US10079015B1 (en) 2016-12-06 2018-09-18 Amazon Technologies, Inc. Multi-layer keyword detection
WO2020014931A1 (zh) * 2018-07-19 2020-01-23 深圳市汇顶科技股份有限公司 语音增强方法、装置、设备及存储介质

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4832147A (en) * 1987-06-19 1989-05-23 E. I. Dupont De Nemours And Company Sound reduction membrane

Also Published As

Publication number Publication date
DE60304147D1 (de) 2006-05-11
US20040204933A1 (en) 2004-10-14
EP1465159B1 (de) 2006-03-22
DE60304147T2 (de) 2006-08-17
EP1465159A1 (de) 2004-10-06

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Legal Events

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