AU635342B2 - Digital speech decoder having a postfilter with reduced spectral distortion - Google Patents

Digital speech decoder having a postfilter with reduced spectral distortion

Info

Publication number
AU635342B2
AU635342B2 AU64114/90A AU6411490A AU635342B2 AU 635342 B2 AU635342 B2 AU 635342B2 AU 64114/90 A AU64114/90 A AU 64114/90A AU 6411490 A AU6411490 A AU 6411490A AU 635342 B2 AU635342 B2 AU 635342B2
Authority
AU
Australia
Prior art keywords
component
coefficients
postfilter
providing
parameters
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
Application number
AU64114/90A
Other languages
English (en)
Other versions
AU6411490A (en
Inventor
Ira Alan Gerson
Mark Antoni Jasiuk
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of AU6411490A publication Critical patent/AU6411490A/en
Application granted granted Critical
Publication of AU635342B2 publication Critical patent/AU635342B2/en
Anticipated expiration legal-status Critical
Expired 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
    • G10L19/26—Pre-filtering or post-filtering

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)
  • Filters That Use Time-Delay Elements (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
AU64114/90A 1989-10-17 1990-09-17 Digital speech decoder having a postfilter with reduced spectral distortion Expired AU635342B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US42292689A 1989-10-17 1989-10-17
US422926 1989-10-17

Publications (2)

Publication Number Publication Date
AU6411490A AU6411490A (en) 1991-05-16
AU635342B2 true AU635342B2 (en) 1993-03-18

Family

ID=23676980

Family Applications (1)

Application Number Title Priority Date Filing Date
AU64114/90A Expired AU635342B2 (en) 1989-10-17 1990-09-17 Digital speech decoder having a postfilter with reduced spectral distortion

Country Status (8)

Country Link
EP (1) EP0570362B1 (de)
JP (1) JP3158434B2 (de)
CN (1) CN1078371C (de)
AT (1) ATE177867T1 (de)
AU (1) AU635342B2 (de)
DE (1) DE69033011T2 (de)
ES (1) ES2131498T3 (de)
WO (1) WO1991006093A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2729244B1 (fr) * 1995-01-06 1997-03-28 Matra Communication Procede de codage de parole a analyse par synthese
FR2729246A1 (fr) * 1995-01-06 1996-07-12 Matra Communication Procede de codage de parole a analyse par synthese
FR2729247A1 (fr) * 1995-01-06 1996-07-12 Matra Communication Procede de codage de parole a analyse par synthese
JP2993396B2 (ja) * 1995-05-12 1999-12-20 三菱電機株式会社 音声加工フィルタ及び音声合成装置
DE19643900C1 (de) * 1996-10-30 1998-02-12 Ericsson Telefon Ab L M Nachfiltern von Hörsignalen, speziell von Sprachsignalen
US6137844A (en) * 1998-02-02 2000-10-24 Oki Telecom, Inc. Digital filter for noise and error removal in transmitted analog signals

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4301329A (en) * 1978-01-09 1981-11-17 Nippon Electric Co., Ltd. Speech analysis and synthesis apparatus
US4617676A (en) * 1984-09-04 1986-10-14 At&T Bell Laboratories Predictive communication system filtering arrangement
US4852169A (en) * 1986-12-16 1989-07-25 GTE Laboratories, Incorporation Method for enhancing the quality of coded speech

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2535833B2 (ja) * 1986-07-03 1996-09-18 日本電気株式会社 集積回路
US4969192A (en) * 1987-04-06 1990-11-06 Voicecraft, Inc. Vector adaptive predictive coder for speech and audio
US4817157A (en) * 1988-01-07 1989-03-28 Motorola, Inc. Digital speech coder having improved vector excitation source
WO2008020509A1 (fr) 2006-08-14 2008-02-21 Asahi Glass Company, Limited Verre trempé thermorésistant et son procédé de fabrication
JP5851280B2 (ja) 2012-02-28 2016-02-03 三菱電機株式会社 無線受信装置、無線通信装置および無線受信方法
KR101303301B1 (ko) 2012-10-12 2013-09-03 김정금 컴퍼니머니를 이용한 담보거래 서비스 방법

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4301329A (en) * 1978-01-09 1981-11-17 Nippon Electric Co., Ltd. Speech analysis and synthesis apparatus
US4617676A (en) * 1984-09-04 1986-10-14 At&T Bell Laboratories Predictive communication system filtering arrangement
US4852169A (en) * 1986-12-16 1989-07-25 GTE Laboratories, Incorporation Method for enhancing the quality of coded speech

Also Published As

Publication number Publication date
CN1078371C (zh) 2002-01-23
EP0570362B1 (de) 1999-03-17
CN1051101A (zh) 1991-05-01
DE69033011T2 (de) 2001-10-04
JPH05500573A (ja) 1993-02-04
DE69033011D1 (de) 1999-04-22
EP0570362A4 (de) 1993-07-01
ATE177867T1 (de) 1999-04-15
EP0570362A1 (de) 1993-11-24
JP3158434B2 (ja) 2001-04-23
ES2131498T3 (es) 1999-08-01
WO1991006093A1 (en) 1991-05-02
AU6411490A (en) 1991-05-16

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