DE50112765D1 - Verfahren zur verbesserung der sprachqualität bei sprachübertragungsaufgaben - Google Patents

Verfahren zur verbesserung der sprachqualität bei sprachübertragungsaufgaben

Info

Publication number
DE50112765D1
DE50112765D1 DE50112765T DE50112765T DE50112765D1 DE 50112765 D1 DE50112765 D1 DE 50112765D1 DE 50112765 T DE50112765 T DE 50112765T DE 50112765 T DE50112765 T DE 50112765T DE 50112765 D1 DE50112765 D1 DE 50112765D1
Authority
DE
Germany
Prior art keywords
language
sub
signal
opt2
quality
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
DE50112765T
Other languages
English (en)
Inventor
Kyrill Alexander Fischer
Christoph Erdmann
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.)
Deutsche Telekom AG
Original Assignee
Deutsche Telekom AG
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 Deutsche Telekom AG filed Critical Deutsche Telekom AG
Application granted granted Critical
Publication of DE50112765D1 publication Critical patent/DE50112765D1/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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/083—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain
    • 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
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/09—Long term prediction, i.e. removing periodical redundancies, e.g. by using adaptive codebook or pitch predictor

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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Machine Translation (AREA)
DE50112765T 2000-04-28 2001-03-08 Verfahren zur verbesserung der sprachqualität bei sprachübertragungsaufgaben Expired - Lifetime DE50112765D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10020863 2000-04-28
PCT/EP2001/002603 WO2001084541A1 (de) 2000-04-28 2001-03-08 Verfahren zur verbesserung der sprachqualität bei sprachübertragungsaufgaben

Publications (1)

Publication Number Publication Date
DE50112765D1 true DE50112765D1 (de) 2007-09-06

Family

ID=7640221

Family Applications (3)

Application Number Title Priority Date Filing Date
DE10026872A Withdrawn DE10026872A1 (de) 2000-04-28 2000-05-31 Verfahren zur Berechnung einer Sprachaktivitätsentscheidung (Voice Activity Detector)
DE10026904A Withdrawn DE10026904A1 (de) 2000-04-28 2000-05-31 Verfahren zur Berechnung des die Lautstärke mitbestimmenden Verstärkungsfaktors für ein codiert übertragenes Sprachsignal
DE50112765T Expired - Lifetime DE50112765D1 (de) 2000-04-28 2001-03-08 Verfahren zur verbesserung der sprachqualität bei sprachübertragungsaufgaben

Family Applications Before (2)

Application Number Title Priority Date Filing Date
DE10026872A Withdrawn DE10026872A1 (de) 2000-04-28 2000-05-31 Verfahren zur Berechnung einer Sprachaktivitätsentscheidung (Voice Activity Detector)
DE10026904A Withdrawn DE10026904A1 (de) 2000-04-28 2000-05-31 Verfahren zur Berechnung des die Lautstärke mitbestimmenden Verstärkungsfaktors für ein codiert übertragenes Sprachsignal

Country Status (5)

Country Link
US (1) US7318025B2 (de)
EP (1) EP1279168B1 (de)
AT (1) ATE368280T1 (de)
DE (3) DE10026872A1 (de)
WO (1) WO2001084541A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10244699B4 (de) * 2002-09-24 2006-06-01 Voice Inter Connect Gmbh Verfahren zur Bestimmung der Sprachaktivität
KR100463657B1 (ko) * 2002-11-30 2004-12-29 삼성전자주식회사 음성구간 검출 장치 및 방법
JP5552988B2 (ja) * 2010-09-27 2014-07-16 富士通株式会社 音声帯域拡張装置および音声帯域拡張方法
ES2758517T3 (es) 2014-07-29 2020-05-05 Ericsson Telefon Ab L M Estimación del ruido de fondo en las señales de audio

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976863A (en) * 1974-07-01 1976-08-24 Alfred Engel Optimal decoder for non-stationary signals
US4185168A (en) * 1976-05-04 1980-01-22 Causey G Donald Method and means for adaptively filtering near-stationary noise from an information bearing signal
US4133976A (en) 1978-04-07 1979-01-09 Bell Telephone Laboratories, Incorporated Predictive speech signal coding with reduced noise effects
FR2646978B1 (fr) 1989-05-11 1991-08-23 France Etat Procede et installation a codage de signaux sonores
DE4020633A1 (de) * 1990-06-26 1992-01-02 Volke Hans Juergen Dr Sc Nat Schaltungsanordnung zur zeitvariaten spektralanalyse elektrischer signale
US5579431A (en) * 1992-10-05 1996-11-26 Panasonic Technologies, Inc. Speech detection in presence of noise by determining variance over time of frequency band limited energy
DE69420027T2 (de) * 1993-02-12 2000-07-06 British Telecomm Rauschverminderung
US5459814A (en) * 1993-03-26 1995-10-17 Hughes Aircraft Company Voice activity detector for speech signals in variable background noise
SE501305C2 (sv) 1993-05-26 1995-01-09 Ericsson Telefon Ab L M Förfarande och anordning för diskriminering mellan stationära och icke stationära signaler
SE503547C2 (sv) 1993-06-11 1996-07-01 Ericsson Telefon Ab L M Anordning och förfarande för döljande av förlorade ramar
CA2124713C (en) 1993-06-18 1998-09-22 Willem Bastiaan Kleijn Long term predictor
BE1007428A3 (nl) 1993-08-02 1995-06-13 Philips Electronics Nv Transmissiesysteem met reconstructie van ontbrekende signaalmonsters.
FI100840B (fi) * 1995-12-12 1998-02-27 Nokia Mobile Phones Ltd Kohinanvaimennin ja menetelmä taustakohinan vaimentamiseksi kohinaises ta puheesta sekä matkaviestin
EP0909442B1 (de) * 1996-07-03 2002-10-09 BRITISH TELECOMMUNICATIONS public limited company Sprachaktivitätsdetektor
TW326070B (en) 1996-12-19 1998-02-01 Holtek Microelectronics Inc The estimation method of the impulse gain for coding vocoder
DE19716862A1 (de) * 1997-04-22 1998-10-29 Deutsche Telekom Ag Sprachaktivitätserkennung
JP3017715B2 (ja) * 1997-10-31 2000-03-13 松下電器産業株式会社 音声再生装置
JP4308345B2 (ja) * 1998-08-21 2009-08-05 パナソニック株式会社 マルチモード音声符号化装置及び復号化装置
US6192335B1 (en) 1998-09-01 2001-02-20 Telefonaktieboiaget Lm Ericsson (Publ) Adaptive combining of multi-mode coding for voiced speech and noise-like signals

Also Published As

Publication number Publication date
EP1279168A1 (de) 2003-01-29
EP1279168B1 (de) 2007-07-25
DE10026872A1 (de) 2001-10-31
WO2001084541A1 (de) 2001-11-08
US20030105626A1 (en) 2003-06-05
ATE368280T1 (de) 2007-08-15
DE10026904A1 (de) 2002-01-03
US7318025B2 (en) 2008-01-08

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