ATE343200T1 - Geräuschunterdrückung vor der sprachkodierung - Google Patents

Geräuschunterdrückung vor der sprachkodierung

Info

Publication number
ATE343200T1
ATE343200T1 AT00126186T AT00126186T ATE343200T1 AT E343200 T1 ATE343200 T1 AT E343200T1 AT 00126186 T AT00126186 T AT 00126186T AT 00126186 T AT00126186 T AT 00126186T AT E343200 T1 ATE343200 T1 AT E343200T1
Authority
AT
Austria
Prior art keywords
signal
estimator
noise
filter
paths
Prior art date
Application number
AT00126186T
Other languages
English (en)
Inventor
Dean Mcarthur
Jim Reilly
Original Assignee
Research In Motion Ltd
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 Research In Motion Ltd filed Critical Research In Motion Ltd
Application granted granted Critical
Publication of ATE343200T1 publication Critical patent/ATE343200T1/de

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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Quality & Reliability (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Analogue/Digital Conversion (AREA)
  • Noise Elimination (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
AT00126186T 1999-12-01 2000-11-30 Geräuschunterdrückung vor der sprachkodierung ATE343200T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/452,623 US6473733B1 (en) 1999-12-01 1999-12-01 Signal enhancement for voice coding

Publications (1)

Publication Number Publication Date
ATE343200T1 true ATE343200T1 (de) 2006-11-15

Family

ID=23797227

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00126186T ATE343200T1 (de) 1999-12-01 2000-11-30 Geräuschunterdrückung vor der sprachkodierung

Country Status (5)

Country Link
US (3) US6473733B1 (de)
EP (1) EP1107235B1 (de)
AT (1) ATE343200T1 (de)
CA (1) CA2326879C (de)
DE (1) DE60031354T2 (de)

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Also Published As

Publication number Publication date
US20030028372A1 (en) 2003-02-06
CA2326879C (en) 2006-05-30
EP1107235A3 (de) 2002-09-18
US6473733B1 (en) 2002-10-29
EP1107235A2 (de) 2001-06-13
DE60031354D1 (de) 2006-11-30
EP1107235B1 (de) 2006-10-18
CA2326879A1 (en) 2001-06-01
DE60031354T2 (de) 2007-08-23
US6647367B2 (en) 2003-11-11
US7174291B2 (en) 2007-02-06
US20040015348A1 (en) 2004-01-22

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