DE602007003023D1 - Linear-prädiktive codierung eines audiosignals - Google Patents

Linear-prädiktive codierung eines audiosignals

Info

Publication number
DE602007003023D1
DE602007003023D1 DE602007003023T DE602007003023T DE602007003023D1 DE 602007003023 D1 DE602007003023 D1 DE 602007003023D1 DE 602007003023 T DE602007003023 T DE 602007003023T DE 602007003023 T DE602007003023 T DE 602007003023T DE 602007003023 D1 DE602007003023 D1 DE 602007003023D1
Authority
DE
Germany
Prior art keywords
processor
audio signal
predictive coding
generates
autocorrelation sequence
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.)
Active
Application number
DE602007003023T
Other languages
English (en)
Inventor
Brinker Albertus C Den
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
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of DE602007003023D1 publication Critical patent/DE602007003023D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term 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
    • 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)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
DE602007003023T 2006-05-30 2007-05-15 Linear-prädiktive codierung eines audiosignals Active DE602007003023D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06114670 2006-05-30
PCT/IB2007/051832 WO2007138511A1 (en) 2006-05-30 2007-05-15 Linear predictive coding of an audio signal

Publications (1)

Publication Number Publication Date
DE602007003023D1 true DE602007003023D1 (de) 2009-12-10

Family

ID=38566813

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602007003023T Active DE602007003023D1 (de) 2006-05-30 2007-05-15 Linear-prädiktive codierung eines audiosignals

Country Status (7)

Country Link
US (1) US20090204397A1 (de)
EP (1) EP2030199B1 (de)
JP (1) JP2009539132A (de)
CN (1) CN101460998A (de)
AT (1) ATE447227T1 (de)
DE (1) DE602007003023D1 (de)
WO (1) WO2007138511A1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
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ES2535609T3 (es) 2011-02-14 2015-05-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Codificador de audio con estimación de ruido de fondo durante fases activas
PL2676266T3 (pl) * 2011-02-14 2015-08-31 Fraunhofer Ges Forschung Układ kodowania na bazie predykcji liniowej wykorzystujący kształtowanie szumu w dziedzinie widmowej
TWI488176B (zh) 2011-02-14 2015-06-11 Fraunhofer Ges Forschung 音訊信號音軌脈衝位置之編碼與解碼技術
JP6117359B2 (ja) * 2013-07-18 2017-04-19 日本電信電話株式会社 線形予測分析装置、方法、プログラム及び記録媒体
WO2015111569A1 (ja) * 2014-01-24 2015-07-30 日本電信電話株式会社 線形予測分析装置、方法、プログラム及び記録媒体
PL3441970T3 (pl) * 2014-01-24 2020-04-30 Nippon Telegraph And Telephone Corporation Urządzenie, sposób i program do analizy liniowo-predykcyjnej oraz nośnik zapisu
EP2980796A1 (de) * 2014-07-28 2016-02-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren und Vorrichtung zur Verarbeitung eines Audiosignals, Audiodecodierer und Audiocodierer
CN110113998B (zh) * 2016-12-28 2022-05-13 皇家飞利浦有限公司 表征睡眠呼吸障碍的方法
WO2018122217A1 (en) * 2016-12-28 2018-07-05 Koninklijke Philips N.V. Method of characterizing sleep disordered breathing
WO2019091573A1 (en) 2017-11-10 2019-05-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding and decoding an audio signal using downsampling or interpolation of scale parameters
EP3483886A1 (de) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Auswahl einer grundfrequenz
EP3483880A1 (de) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Zeitliche rauschformung
EP3483879A1 (de) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Analyse-/synthese-fensterfunktion für modulierte geläppte transformation
EP3483882A1 (de) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Steuerung der bandbreite in codierern und/oder decodierern
EP3483883A1 (de) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiokodierung und -dekodierung mit selektiver nachfilterung
EP3483884A1 (de) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Signalfiltrierung
WO2019091576A1 (en) 2017-11-10 2019-05-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoders, audio decoders, methods and computer programs adapting an encoding and decoding of least significant bits
EP3483878A1 (de) 2017-11-10 2019-05-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audiodecoder mit auswahlfunktion für unterschiedliche verlustmaskierungswerkzeuge

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US4544919A (en) * 1982-01-03 1985-10-01 Motorola, Inc. Method and means of determining coefficients for linear predictive coding
JPH02294699A (ja) * 1989-05-10 1990-12-05 Hitachi Ltd 音声分析合成方式
JP2770581B2 (ja) * 1991-02-19 1998-07-02 日本電気株式会社 音声信号のスペクトル分析方法とその装置
JP2776050B2 (ja) * 1991-02-26 1998-07-16 日本電気株式会社 音声符号化方式
CA2084323C (en) * 1991-12-03 1996-12-03 Tetsu Taguchi Speech signal encoding system capable of transmitting a speech signal at a low bit rate
US5339384A (en) 1992-02-18 1994-08-16 At&T Bell Laboratories Code-excited linear predictive coding with low delay for speech or audio signals
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
JP3522012B2 (ja) * 1995-08-23 2004-04-26 沖電気工業株式会社 コード励振線形予測符号化装置
US5790759A (en) * 1995-09-19 1998-08-04 Lucent Technologies Inc. Perceptual noise masking measure based on synthesis filter frequency response
US6047254A (en) * 1996-05-15 2000-04-04 Advanced Micro Devices, Inc. System and method for determining a first formant analysis filter and prefiltering a speech signal for improved pitch estimation
EP0907258B1 (de) * 1997-10-03 2007-01-03 Matsushita Electric Industrial Co., Ltd. Audiosignalkompression, Sprachsignalkompression und Spracherkennung
KR100304092B1 (ko) * 1998-03-11 2001-09-26 마츠시타 덴끼 산교 가부시키가이샤 오디오 신호 부호화 장치, 오디오 신호 복호화 장치 및 오디오 신호 부호화/복호화 장치
JP3552201B2 (ja) * 1999-06-30 2004-08-11 株式会社東芝 音声符号化方法および装置
JP2001265398A (ja) * 2000-03-16 2001-09-28 Matsushita Electric Ind Co Ltd 適応型雑音抑圧音声符号化装置及び符号化方法
JP2001273000A (ja) * 2000-03-23 2001-10-05 Matsushita Electric Ind Co Ltd 適応型雑音抑圧音声符号化装置
US20030028386A1 (en) * 2001-04-02 2003-02-06 Zinser Richard L. Compressed domain universal transcoder
US20030235243A1 (en) * 2002-06-25 2003-12-25 Shousheng He Method for windowed noise auto-correlation
US7676362B2 (en) * 2004-12-31 2010-03-09 Motorola, Inc. Method and apparatus for enhancing loudness of a speech signal
WO2007080211A1 (en) * 2006-01-09 2007-07-19 Nokia Corporation Decoding of binaural audio signals

Also Published As

Publication number Publication date
ATE447227T1 (de) 2009-11-15
EP2030199A1 (de) 2009-03-04
EP2030199B1 (de) 2009-10-28
JP2009539132A (ja) 2009-11-12
US20090204397A1 (en) 2009-08-13
CN101460998A (zh) 2009-06-17
WO2007138511A1 (en) 2007-12-06

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