SE9500321L - Förfarande för bullerundertryckning genom spektral subtraktion - Google Patents

Förfarande för bullerundertryckning genom spektral subtraktion

Info

Publication number
SE9500321L
SE9500321L SE9500321A SE9500321A SE9500321L SE 9500321 L SE9500321 L SE 9500321L SE 9500321 A SE9500321 A SE 9500321A SE 9500321 A SE9500321 A SE 9500321A SE 9500321 L SE9500321 L SE 9500321L
Authority
SE
Sweden
Prior art keywords
pct
frame
cir
estimate
spectral subtraction
Prior art date
Application number
SE9500321A
Other languages
English (en)
Other versions
SE505156C2 (sv
SE9500321D0 (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
Priority to SE9500321A priority Critical patent/SE505156C2/sv
Publication of SE9500321D0 publication Critical patent/SE9500321D0/sv
Priority to PCT/SE1996/000024 priority patent/WO1996024128A1/en
Priority to EP96902028A priority patent/EP0807305B1/en
Priority to US08/875,412 priority patent/US5943429A/en
Priority to CA002210490A priority patent/CA2210490C/en
Priority to ES96902028T priority patent/ES2145429T3/es
Priority to RU97116274A priority patent/RU2145737C1/ru
Priority to JP8523454A priority patent/JPH10513273A/ja
Priority to KR1019970705131A priority patent/KR100365300B1/ko
Priority to DE69606978T priority patent/DE69606978T2/de
Priority to BR9606860A priority patent/BR9606860A/pt
Priority to AU46369/96A priority patent/AU696152B2/en
Priority to CN96191661A priority patent/CN1110034C/zh
Publication of SE9500321L publication Critical patent/SE9500321L/sv
Publication of SE505156C2 publication Critical patent/SE505156C2/sv
Priority to FI973142A priority patent/FI973142A/sv

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
    • 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)
  • Filters That Use Time-Delay Elements (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Telephone Function (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
SE9500321A 1995-01-30 1995-01-30 Förfarande för bullerundertryckning genom spektral subtraktion SE505156C2 (sv)

Priority Applications (14)

Application Number Priority Date Filing Date Title
SE9500321A SE505156C2 (sv) 1995-01-30 1995-01-30 Förfarande för bullerundertryckning genom spektral subtraktion
CN96191661A CN1110034C (zh) 1995-01-30 1996-01-12 谱削减噪声抑制方法
RU97116274A RU2145737C1 (ru) 1995-01-30 1996-01-12 Способ подавления шума путем спектрального вычитания
KR1019970705131A KR100365300B1 (ko) 1995-01-30 1996-01-12 스펙트럼감산잡음억제방법
US08/875,412 US5943429A (en) 1995-01-30 1996-01-12 Spectral subtraction noise suppression method
CA002210490A CA2210490C (en) 1995-01-30 1996-01-12 Spectral subtraction noise suppression method
ES96902028T ES2145429T3 (es) 1995-01-30 1996-01-12 Procedimiento de supresion de ruido por substraccion espectral.
PCT/SE1996/000024 WO1996024128A1 (en) 1995-01-30 1996-01-12 Spectral subtraction noise suppression method
JP8523454A JPH10513273A (ja) 1995-01-30 1996-01-12 スペクトル減算雑音抑止方法
EP96902028A EP0807305B1 (en) 1995-01-30 1996-01-12 Spectral subtraction noise suppression method
DE69606978T DE69606978T2 (de) 1995-01-30 1996-01-12 Verfahren zur rauschunterdrückung mittels spektraler subtraktion
BR9606860A BR9606860A (pt) 1995-01-30 1996-01-12 Processo de supressão de ruído por subtração espectral
AU46369/96A AU696152B2 (en) 1995-01-30 1996-01-12 Spectral subtraction noise suppression method
FI973142A FI973142A (sv) 1995-01-30 1997-07-29 Spektralt subtraherande brusdämpningsförfarande

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9500321A SE505156C2 (sv) 1995-01-30 1995-01-30 Förfarande för bullerundertryckning genom spektral subtraktion

Publications (3)

Publication Number Publication Date
SE9500321D0 SE9500321D0 (sv) 1995-01-30
SE9500321L true SE9500321L (sv) 1996-07-31
SE505156C2 SE505156C2 (sv) 1997-07-07

Family

ID=20397011

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9500321A SE505156C2 (sv) 1995-01-30 1995-01-30 Förfarande för bullerundertryckning genom spektral subtraktion

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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CN1110034C (zh) 2003-05-28
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US5943429A (en) 1999-08-24
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