ATE360249T1 - Verfahren und vorrichtung zur bestimmung von sprachkodierparametern - Google Patents

Verfahren und vorrichtung zur bestimmung von sprachkodierparametern

Info

Publication number
ATE360249T1
ATE360249T1 AT00901158T AT00901158T ATE360249T1 AT E360249 T1 ATE360249 T1 AT E360249T1 AT 00901158 T AT00901158 T AT 00901158T AT 00901158 T AT00901158 T AT 00901158T AT E360249 T1 ATE360249 T1 AT E360249T1
Authority
AT
Austria
Prior art keywords
frame
noise reduction
speech coding
samples
noise
Prior art date
Application number
AT00901158T
Other languages
English (en)
Inventor
Antti Vaehaetalo
Erkki Paajanen
Original Assignee
Nokia Corp
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 Corp filed Critical Nokia Corp
Application granted granted Critical
Publication of ATE360249T1 publication Critical patent/ATE360249T1/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
    • 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
    • G10L19/26—Pre-filtering or post-filtering
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • G10L19/025—Detection of transients or attacks for time/frequency resolution switching

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)
  • Devices For Executing Special Programs (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
AT00901158T 1999-01-08 2000-01-04 Verfahren und vorrichtung zur bestimmung von sprachkodierparametern ATE360249T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI990033A FI114833B (fi) 1999-01-08 1999-01-08 Menetelmä, puhekooderi ja matkaviestin puheenkoodauskehysten muodostamiseksi

Publications (1)

Publication Number Publication Date
ATE360249T1 true ATE360249T1 (de) 2007-05-15

Family

ID=8553299

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00901158T ATE360249T1 (de) 1999-01-08 2000-01-04 Verfahren und vorrichtung zur bestimmung von sprachkodierparametern

Country Status (11)

Country Link
US (1) US6587817B1 (de)
EP (1) EP1145221B1 (de)
JP (1) JP4545941B2 (de)
CN (1) CN1132155C (de)
AT (1) ATE360249T1 (de)
AU (1) AU2112700A (de)
DE (1) DE60034429T2 (de)
ES (1) ES2284473T3 (de)
FI (1) FI114833B (de)
HK (1) HK1042578B (de)
WO (1) WO2000041163A2 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100452109B1 (ko) * 2002-10-07 2004-10-12 주식회사 아큐죤 음성신호 추적장치 및 그 방법
EP1626504A1 (de) 2003-05-21 2006-02-15 Sony Corporation Datenverarbeitungseinrichtung, codierungseinrichtung, codierungsverfahren, decodierungseinrichtung, decodierungsverfahren und programm
FR2875633A1 (fr) * 2004-09-17 2006-03-24 France Telecom Procede et dispositif d'evaluation de l'efficacite d'une fonction de reduction de bruit destinee a etre appliquee a des signaux audio
FR2882458A1 (fr) * 2005-02-18 2006-08-25 France Telecom Procede de mesure de la gene due au bruit dans un signal audio
PL3848928T3 (pl) 2006-10-25 2023-07-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Urządzenie i sposób do generowania wartości podpasm audio o wartościach zespolonych
USRE50158E1 (en) 2006-10-25 2024-10-01 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples
WO2008069593A1 (en) 2006-12-07 2008-06-12 Lg Electronics Inc. A method and an apparatus for processing an audio signal
GB2466675B (en) 2009-01-06 2013-03-06 Skype Speech coding
GB2466671B (en) 2009-01-06 2013-03-27 Skype Speech encoding
GB2466670B (en) 2009-01-06 2012-11-14 Skype Speech encoding
GB2466673B (en) 2009-01-06 2012-11-07 Skype Quantization
US8452606B2 (en) 2009-09-29 2013-05-28 Skype Speech encoding using multiple bit rates
TWI479478B (zh) * 2011-02-14 2015-04-01 弗勞恩霍夫爾協會 用以使用對齊的預看部分將音訊信號解碼的裝置與方法
MY165853A (en) 2011-02-14 2018-05-18 Fraunhofer Ges Forschung Linear prediction based coding scheme using spectral domain noise shaping
BR112013020324B8 (pt) 2011-02-14 2022-02-08 Fraunhofer Ges Forschung Aparelho e método para supressão de erro em fala unificada de baixo atraso e codificação de áudio
TWI564882B (zh) 2011-02-14 2017-01-01 弗勞恩霍夫爾協會 利用重疊變換之資訊信號表示技術（一）
EP2676267B1 (de) 2011-02-14 2017-07-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Kodierung und dekodierung von impulspositionen von spuren eines audiosignals
WO2012110448A1 (en) 2011-02-14 2012-08-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for coding a portion of an audio signal using a transient detection and a quality result
KR101699898B1 (ko) 2011-02-14 2017-01-25 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 스펙트럼 영역에서 디코딩된 오디오 신호를 처리하기 위한 방법 및 장치
CN111415674A (zh) * 2020-05-07 2020-07-14 北京声智科技有限公司 语音降噪方法及电子设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5774846A (en) * 1994-12-19 1998-06-30 Matsushita Electric Industrial Co., Ltd. Speech coding apparatus, linear prediction coefficient analyzing apparatus and noise reducing apparatus
US5732389A (en) * 1995-06-07 1998-03-24 Lucent Technologies Inc. Voiced/unvoiced classification of speech for excitation codebook selection in celp speech decoding during frame erasures
FI100840B (fi) * 1995-12-12 1998-02-27 Nokia Mobile Phones Ltd Kohinanvaimennin ja menetelmä taustakohinan vaimentamiseksi kohinaises ta puheesta sekä matkaviestin
GB2326572A (en) * 1997-06-19 1998-12-23 Softsound Limited Low bit rate audio coder and decoder

Also Published As

Publication number Publication date
FI990033A0 (fi) 1999-01-08
DE60034429D1 (de) 2007-05-31
CN1337042A (zh) 2002-02-20
JP2004513381A (ja) 2004-04-30
WO2000041163A3 (en) 2005-03-10
HK1042578B (zh) 2005-03-04
CN1132155C (zh) 2003-12-24
EP1145221A3 (de) 2005-04-27
HK1042578A1 (en) 2002-08-16
DE60034429T2 (de) 2008-01-03
US6587817B1 (en) 2003-07-01
FI990033L (fi) 2000-07-09
WO2000041163A2 (en) 2000-07-13
FI114833B (fi) 2004-12-31
AU2112700A (en) 2000-07-24
JP4545941B2 (ja) 2010-09-15
EP1145221B1 (de) 2007-04-18
EP1145221A2 (de) 2001-10-17
ES2284473T3 (es) 2007-11-16

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