DE69527257D1 - System zur Sprachkodierung - Google Patents

System zur Sprachkodierung

Info

Publication number
DE69527257D1
DE69527257D1 DE69527257T DE69527257T DE69527257D1 DE 69527257 D1 DE69527257 D1 DE 69527257D1 DE 69527257 T DE69527257 T DE 69527257T DE 69527257 T DE69527257 T DE 69527257T DE 69527257 D1 DE69527257 D1 DE 69527257D1
Authority
DE
Germany
Prior art keywords
unit
block length
fft
linear
input signal
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
DE69527257T
Other languages
English (en)
Other versions
DE69527257T2 (de
Inventor
Satoshi Hasegawa
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.)
Acer Inc
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE69527257D1 publication Critical patent/DE69527257D1/de
Publication of DE69527257T2 publication Critical patent/DE69527257T2/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
    • G10L19/02—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
    • G10L19/0212—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 using orthogonal transformation
    • 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)
  • 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)
DE69527257T 1994-12-08 1995-12-05 System zur Sprachkodierung Expired - Lifetime DE69527257T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6304941A JP2776277B2 (ja) 1994-12-08 1994-12-08 音声符号化装置

Publications (2)

Publication Number Publication Date
DE69527257D1 true DE69527257D1 (de) 2002-08-08
DE69527257T2 DE69527257T2 (de) 2003-03-13

Family

ID=17939166

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69527257T Expired - Lifetime DE69527257T2 (de) 1994-12-08 1995-12-05 System zur Sprachkodierung

Country Status (4)

Country Link
US (1) US5799270A (de)
EP (1) EP0716409B1 (de)
JP (1) JP2776277B2 (de)
DE (1) DE69527257T2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09325860A (ja) * 1996-06-04 1997-12-16 Alps Electric Co Ltd 座標入力装置
US8306811B2 (en) * 1996-08-30 2012-11-06 Digimarc Corporation Embedding data in audio and detecting embedded data in audio
US6128593A (en) * 1998-08-04 2000-10-03 Sony Corporation System and method for implementing a refined psycho-acoustic modeler
JP3813025B2 (ja) * 1998-10-29 2006-08-23 株式会社リコー デジタル音響信号符号化装置、デジタル音響信号符号化方法及びデジタル音響信号符号化プログラムを記録した媒体
US6266643B1 (en) 1999-03-03 2001-07-24 Kenneth Canfield Speeding up audio without changing pitch by comparing dominant frequencies
US6965859B2 (en) * 2003-02-28 2005-11-15 Xvd Corporation Method and apparatus for audio compression
CN101355829B (zh) * 2007-07-25 2013-08-21 鹏智科技(深圳)有限公司 减小噪音影响的发声设备测试装置及测试方法
US10841030B2 (en) * 2018-07-30 2020-11-17 Avago Technologies International Sales Pte. Limited Leg combining by FFT selection

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2844695B2 (ja) * 1989-07-19 1999-01-06 ソニー株式会社 信号符号化装置
US5502789A (en) * 1990-03-07 1996-03-26 Sony Corporation Apparatus for encoding digital data with reduction of perceptible noise
JP3033156B2 (ja) * 1990-08-24 2000-04-17 ソニー株式会社 ディジタル信号符号化装置
EP0506394A2 (de) * 1991-03-29 1992-09-30 Sony Corporation Einrichtung zur Kodierung von digitalen Signalen
JP3134337B2 (ja) * 1991-03-30 2001-02-13 ソニー株式会社 ディジタル信号符号化方法
JP3141450B2 (ja) * 1991-09-30 2001-03-05 ソニー株式会社 オーディオ信号処理方法
US5285498A (en) * 1992-03-02 1994-02-08 At&T Bell Laboratories Method and apparatus for coding audio signals based on perceptual model
JP3104400B2 (ja) * 1992-04-27 2000-10-30 ソニー株式会社 オーディオ信号符号化装置及び方法
JP3186292B2 (ja) * 1993-02-02 2001-07-11 ソニー株式会社 高能率符号化方法及び装置
JP3173218B2 (ja) * 1993-05-10 2001-06-04 ソニー株式会社 圧縮データ記録方法及び装置、圧縮データ再生方法、並びに記録媒体
US5581654A (en) * 1993-05-25 1996-12-03 Sony Corporation Method and apparatus for information encoding and decoding
DE69426860T2 (de) * 1993-12-10 2001-07-19 Nec Corp., Tokio/Tokyo Sprachcodierer und Verfahren zum Suchen von Codebüchern

Also Published As

Publication number Publication date
DE69527257T2 (de) 2003-03-13
US5799270A (en) 1998-08-25
EP0716409A2 (de) 1996-06-12
JPH08160998A (ja) 1996-06-21
JP2776277B2 (ja) 1998-07-16
EP0716409B1 (de) 2002-07-03
EP0716409A3 (de) 1998-01-07

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: ACER INC., TAIPEH/T'AI-PEI, TW

8328 Change in the person/name/address of the agent

Representative=s name: MICHALSKI HUETTERMANN & PARTNER PATENTANWAELTE, 40