FI973142A - Spektralt subtraherande brusdämpningsförfarande - Google Patents

Spektralt subtraherande brusdämpningsförfarande Download PDF

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Publication number
FI973142A
FI973142A FI973142A FI973142A FI973142A FI 973142 A FI973142 A FI 973142A FI 973142 A FI973142 A FI 973142A FI 973142 A FI973142 A FI 973142A FI 973142 A FI973142 A FI 973142A
Authority
FI
Finland
Prior art keywords
spectrally
noise suppression
suppression procedure
subtractive noise
subtractive
Prior art date
Application number
FI973142A
Other languages
English (en)
Finnish (fi)
Other versions
FI973142A0 (sv
Inventor
Peter Haendel
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of FI973142A0 publication Critical patent/FI973142A0/sv
Publication of FI973142A publication Critical patent/FI973142A/sv

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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
    • 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
    • G10L2021/02168—Noise filtering characterised by the method used for estimating noise the estimation exclusively taking place during speech pauses
    • 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
    • G10L21/0264—Noise filtering characterised by the type of parameter measurement, e.g. correlation techniques, zero crossing techniques or predictive techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Noise Elimination (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Telephone Function (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
FI973142A 1995-01-30 1997-07-29 Spektralt subtraherande brusdämpningsförfarande FI973142A (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9500321A SE505156C2 (sv) 1995-01-30 1995-01-30 Förfarande för bullerundertryckning genom spektral subtraktion
PCT/SE1996/000024 WO1996024128A1 (en) 1995-01-30 1996-01-12 Spectral subtraction noise suppression method

Publications (2)

Publication Number Publication Date
FI973142A0 FI973142A0 (sv) 1997-07-29
FI973142A true FI973142A (sv) 1997-09-30

Family

ID=20397011

Family Applications (1)

Application Number Title Priority Date Filing Date
FI973142A FI973142A (sv) 1995-01-30 1997-07-29 Spektralt subtraherande brusdämpningsförfarande

Country Status (14)

Country Link
US (1) US5943429A (sv)
EP (1) EP0807305B1 (sv)
JP (1) JPH10513273A (sv)
KR (1) KR100365300B1 (sv)
CN (1) CN1110034C (sv)
AU (1) AU696152B2 (sv)
BR (1) BR9606860A (sv)
CA (1) CA2210490C (sv)
DE (1) DE69606978T2 (sv)
ES (1) ES2145429T3 (sv)
FI (1) FI973142A (sv)
RU (1) RU2145737C1 (sv)
SE (1) SE505156C2 (sv)
WO (1) WO1996024128A1 (sv)

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EP0807305A1 (en) 1997-11-19
CN1110034C (zh) 2003-05-28
US5943429A (en) 1999-08-24
SE9500321D0 (sv) 1995-01-30
WO1996024128A1 (en) 1996-08-08
CA2210490A1 (en) 1996-08-08
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RU2145737C1 (ru) 2000-02-20
CA2210490C (en) 2005-03-29
CN1169788A (zh) 1998-01-07
EP0807305B1 (en) 2000-03-08
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BR9606860A (pt) 1997-11-25
AU696152B2 (en) 1998-09-03
KR100365300B1 (ko) 2003-03-15
DE69606978D1 (de) 2000-04-13
FI973142A0 (sv) 1997-07-29
SE505156C2 (sv) 1997-07-07
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AU4636996A (en) 1996-08-21
ES2145429T3 (es) 2000-07-01

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