CN1227646C - 音频信号传输系统 - Google Patents

音频信号传输系统 Download PDF

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Publication number
CN1227646C
CN1227646C CNB008014647A CN00801464A CN1227646C CN 1227646 C CN1227646 C CN 1227646C CN B008014647 A CNB008014647 A CN B008014647A CN 00801464 A CN00801464 A CN 00801464A CN 1227646 C CN1227646 C CN 1227646C
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CN
China
Prior art keywords
time
signal
frequency
sound signal
change
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 - Fee Related
Application number
CNB008014647A
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English (en)
Chinese (zh)
Other versions
CN1318188A (zh
Inventor
R·J·斯勒伊特
A·J·E·M·杰森
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.)
Koninklijke Philips NV
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Koninklijke Philips Electronics NV
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Publication date
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of CN1318188A publication Critical patent/CN1318188A/zh
Application granted granted Critical
Publication of CN1227646C publication Critical patent/CN1227646C/zh
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    • 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
    • G10L21/003—Changing voice quality, e.g. pitch or formants
    • 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
    • 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
    • G10L21/04—Time compression or expansion
    • 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
    • G10L2025/906—Pitch tracking

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
CNB008014647A 1999-05-26 2000-05-08 音频信号传输系统 Expired - Fee Related CN1227646C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP99201656 1999-05-26
EP99201656.8 1999-05-26

Publications (2)

Publication Number Publication Date
CN1318188A CN1318188A (zh) 2001-10-17
CN1227646C true CN1227646C (zh) 2005-11-16

Family

ID=8240236

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB008014647A Expired - Fee Related CN1227646C (zh) 1999-05-26 2000-05-08 音频信号传输系统

Country Status (7)

Country Link
US (1) US6978241B1 (enExample)
EP (1) EP1099215B1 (enExample)
JP (1) JP2003500708A (enExample)
KR (1) KR20010072035A (enExample)
CN (1) CN1227646C (enExample)
DE (1) DE60018246T2 (enExample)
WO (1) WO2000074039A1 (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005506582A (ja) 2001-10-26 2005-03-03 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ オーディオコーダにおける正弦波パラメータのトラッキング
JP4652323B2 (ja) * 2003-01-17 2011-03-16 トムソン ライセンシング 固定レートサンプリングモードにおいて同期サンプリング設計を使用する方法
US7567903B1 (en) * 2005-01-12 2009-07-28 At&T Intellectual Property Ii, L.P. Low latency real-time vocal tract length normalization
US7720677B2 (en) * 2005-11-03 2010-05-18 Coding Technologies Ab Time warped modified transform coding of audio signals
US8682652B2 (en) * 2006-06-30 2014-03-25 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic
US7873511B2 (en) * 2006-06-30 2011-01-18 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder and audio processor having a dynamically variable warping characteristic
KR101360456B1 (ko) 2008-07-11 2014-02-07 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 시간 워프 활성 신호의 제공 및 이를 이용한 오디오 신호의 인코딩
MY154452A (en) * 2008-07-11 2015-06-15 Fraunhofer Ges Forschung An apparatus and a method for decoding an encoded audio signal
EP2144230A1 (en) 2008-07-11 2010-01-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Low bitrate audio encoding/decoding scheme having cascaded switches
CA2792504C (en) * 2010-03-10 2016-05-31 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio signal decoder, audio signal encoder, method for decoding an audio signal, method for encoding an audio signal and computer program using a pitch-dependent adaptation of a coding context
JP6303340B2 (ja) * 2013-08-30 2018-04-04 富士通株式会社 音声処理装置、音声処理方法及び音声処理用コンピュータプログラム

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4937873A (en) 1985-03-18 1990-06-26 Massachusetts Institute Of Technology Computationally efficient sine wave synthesis for acoustic waveform processing
JPH0546199A (ja) * 1991-08-21 1993-02-26 Matsushita Electric Ind Co Ltd 音声符号化装置
US5884253A (en) * 1992-04-09 1999-03-16 Lucent Technologies, Inc. Prototype waveform speech coding with interpolation of pitch, pitch-period waveforms, and synthesis filter
AU7960994A (en) * 1993-10-08 1995-05-04 Comsat Corporation Improved low bit rate vocoders and methods of operation therefor
JPH07219597A (ja) * 1994-01-31 1995-08-18 Matsushita Electric Ind Co Ltd ピッチ変換装置
CA2154911C (en) * 1994-08-02 2001-01-02 Kazunori Ozawa Speech coding device
US5794185A (en) * 1996-06-14 1998-08-11 Motorola, Inc. Method and apparatus for speech coding using ensemble statistics
JPH10149199A (ja) * 1996-11-19 1998-06-02 Sony Corp 音声符号化方法、音声復号化方法、音声符号化装置、音声復号化装置、電話装置、ピッチ変換方法及び媒体
US6449590B1 (en) * 1998-08-24 2002-09-10 Conexant Systems, Inc. Speech encoder using warping in long term preprocessing

Also Published As

Publication number Publication date
US6978241B1 (en) 2005-12-20
JP2003500708A (ja) 2003-01-07
CN1318188A (zh) 2001-10-17
DE60018246D1 (de) 2005-03-31
DE60018246T2 (de) 2006-05-04
KR20010072035A (ko) 2001-07-31
EP1099215B1 (en) 2005-02-23
WO2000074039A1 (en) 2000-12-07
EP1099215A1 (en) 2001-05-16

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