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DE69630580D1 - Rauschunterdrücker und Verfahren zur Unterdrückung des Hintergrundrauschens in einem verrauschten Sprachsignal und eine Mobilstation - Google Patents

Rauschunterdrücker und Verfahren zur Unterdrückung des Hintergrundrauschens in einem verrauschten Sprachsignal und eine Mobilstation

Info

Publication number
DE69630580D1
DE69630580D1 DE69630580T DE69630580T DE69630580D1 DE 69630580 D1 DE69630580 D1 DE 69630580D1 DE 69630580 T DE69630580 T DE 69630580T DE 69630580 T DE69630580 T DE 69630580T DE 69630580 D1 DE69630580 D1 DE 69630580D1
Authority
DE
Germany
Prior art keywords
noise
mobile station
speech signal
noisy speech
suppressing background
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.)
Expired - Lifetime
Application number
DE69630580T
Other languages
English (en)
Other versions
DE69630580T2 (de
Inventor
Antti Vaehaetalo
Erkki Paajanen
Juha Haekkinen
Ville-Veikko Mattila
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.)
Nokia Oyj
Original Assignee
Nokia Oyj
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 Nokia Oyj filed Critical Nokia Oyj
Application granted granted Critical
Publication of DE69630580D1 publication Critical patent/DE69630580D1/de
Publication of DE69630580T2 publication Critical patent/DE69630580T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78—Detection of presence or absence of voice signals
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/90—Pitch determination of speech signals
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78—Detection of presence or absence of voice signals
    • G10L2025/783—Detection of presence or absence of voice signals based on threshold decision
    • 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
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/12—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being prediction coefficients
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/27—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the analysis technique

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Noise Elimination (AREA)
DE69630580T 1995-12-12 1996-11-08 Rauschunterdrücker und Verfahren zur Unterdrückung des Hintergrundrauschens in einem verrauschten Sprachsignal und eine Mobilstation Expired - Lifetime DE69630580T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI955947A FI100840B (fi) 1995-12-12 1995-12-12 Kohinanvaimennin ja menetelmä taustakohinan vaimentamiseksi kohinaises ta puheesta sekä matkaviestin
FI955947 1995-12-12

Publications (2)

Publication Number Publication Date
DE69630580D1 true DE69630580D1 (de) 2003-12-11
DE69630580T2 DE69630580T2 (de) 2004-09-16

Family

ID=8544524

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69630580T Expired - Lifetime DE69630580T2 (de) 1995-12-12 1996-11-08 Rauschunterdrücker und Verfahren zur Unterdrückung des Hintergrundrauschens in einem verrauschten Sprachsignal und eine Mobilstation
DE69614989T Expired - Lifetime DE69614989T2 (de) 1995-12-12 1996-11-19 Verfahren und Vorrichtung zur Feststellung der Sprachaktivität in einem Sprachsignal und eine Kommunikationsvorrichtung

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69614989T Expired - Lifetime DE69614989T2 (de) 1995-12-12 1996-11-19 Verfahren und Vorrichtung zur Feststellung der Sprachaktivität in einem Sprachsignal und eine Kommunikationsvorrichtung

Country Status (7)

Country Link
US (2) US5963901A (de)
EP (2) EP0790599B1 (de)
JP (4) JP4163267B2 (de)
AU (2) AU1067797A (de)
DE (2) DE69630580T2 (de)
FI (1) FI100840B (de)
WO (2) WO1997022117A1 (de)

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* Cited by examiner, † Cited by third party
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US5963901A (en) 1999-10-05
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