FR2702075B1 - Procede de generation d'un filtre de ponderation spectrale du bruit dans un codeur de la parole. - Google Patents

Procede de generation d'un filtre de ponderation spectrale du bruit dans un codeur de la parole.

Info

Publication number
FR2702075B1
FR2702075B1 FR9401450A FR9401450A FR2702075B1 FR 2702075 B1 FR2702075 B1 FR 2702075B1 FR 9401450 A FR9401450 A FR 9401450A FR 9401450 A FR9401450 A FR 9401450A FR 2702075 B1 FR2702075 B1 FR 2702075B1
Authority
FR
France
Prior art keywords
generating
speech encoder
weighting filter
spectral weighting
spectral
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
FR9401450A
Other languages
English (en)
Other versions
FR2702075A1 (fr
Inventor
Ira A Gerson
Mark A Jasiuk
Matthew A Hartman
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 FR2702075A1 publication Critical patent/FR2702075A1/fr
Application granted granted Critical
Publication of FR2702075B1 publication Critical patent/FR2702075B1/fr
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
    • G10L19/04—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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders

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)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
FR9401450A 1993-02-23 1994-02-09 Procede de generation d'un filtre de ponderation spectrale du bruit dans un codeur de la parole. Expired - Lifetime FR2702075B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/021,364 US5434947A (en) 1993-02-23 1993-02-23 Method for generating a spectral noise weighting filter for use in a speech coder

Publications (2)

Publication Number Publication Date
FR2702075A1 FR2702075A1 (fr) 1994-09-02
FR2702075B1 true FR2702075B1 (fr) 1996-04-26

Family

ID=21803778

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9401450A Expired - Lifetime FR2702075B1 (fr) 1993-02-23 1994-02-09 Procede de generation d'un filtre de ponderation spectrale du bruit dans un codeur de la parole.

Country Status (11)

Country Link
US (2) US5434947A (fr)
JP (2) JP3070955B2 (fr)
CN (1) CN1074846C (fr)
AU (1) AU669788B2 (fr)
BR (1) BR9404230A (fr)
CA (1) CA2132006C (fr)
DE (2) DE4491015T1 (fr)
FR (1) FR2702075B1 (fr)
GB (1) GB2280828B (fr)
SE (1) SE517793C2 (fr)
WO (1) WO1994019790A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5708756A (en) * 1995-02-24 1998-01-13 Industrial Technology Research Institute Low delay, middle bit rate speech coder
US6064962A (en) * 1995-09-14 2000-05-16 Kabushiki Kaisha Toshiba Formant emphasis method and formant emphasis filter device
US5963899A (en) * 1996-08-07 1999-10-05 U S West, Inc. Method and system for region based filtering of speech
US6098038A (en) * 1996-09-27 2000-08-01 Oregon Graduate Institute Of Science & Technology Method and system for adaptive speech enhancement using frequency specific signal-to-noise ratio estimates
US5924062A (en) * 1997-07-01 1999-07-13 Nokia Mobile Phones ACLEP codec with modified autocorrelation matrix storage and search
GB2352949A (en) * 1999-08-02 2001-02-07 Motorola Ltd Speech coder for communications unit
US6801931B1 (en) * 2000-07-20 2004-10-05 Ericsson Inc. System and method for personalizing electronic mail messages by rendering the messages in the voice of a predetermined speaker
SE521693C3 (sv) * 2001-03-30 2004-02-04 Ericsson Telefon Ab L M En metod och anordning för brusundertryckning
US7337110B2 (en) * 2002-08-26 2008-02-26 Motorola, Inc. Structured VSELP codebook for low complexity search
JP4813796B2 (ja) * 2002-09-17 2011-11-09 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 信号を合成するための方法、記憶媒体及びコンピュータシステム
EP1513137A1 (fr) * 2003-08-22 2005-03-09 MicronasNIT LCC, Novi Sad Institute of Information Technologies Système de traitement de la parole à excitation à impulsions multiples
JP5202960B2 (ja) * 2005-01-31 2013-06-05 スカイプ 通信システムにおけるフレームの連結方法
US8725506B2 (en) * 2010-06-30 2014-05-13 Intel Corporation Speech audio processing
CA3025108C (fr) 2010-07-02 2020-10-27 Dolby International Ab Decodage audio avec post-filtrage selectifeurs ou codeurs
FR2977439A1 (fr) * 2011-06-28 2013-01-04 France Telecom Fenetres de ponderation en codage/decodage par transformee avec recouvrement, optimisees en retard.
JP6077166B2 (ja) * 2016-07-10 2017-02-08 有限会社技研産業 放射線遮蔽材料及び放射線遮蔽建材

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL188189C (nl) * 1979-04-04 1992-04-16 Philips Nv Werkwijze ter bepaling van stuursignalen voor besturing van polen van een louter-polen filter in een spraaksynthese-inrichting.
US4401855A (en) * 1980-11-28 1983-08-30 The Regents Of The University Of California Apparatus for the linear predictive coding of human speech
JPH0738119B2 (ja) * 1986-07-30 1995-04-26 日本電気株式会社 音声波形符号復号化装置
US5125030A (en) * 1987-04-13 1992-06-23 Kokusai Denshin Denwa Co., Ltd. Speech signal coding/decoding system based on the type of speech signal
US4817157A (en) * 1988-01-07 1989-03-28 Motorola, Inc. Digital speech coder having improved vector excitation source
CA2021514C (fr) * 1989-09-01 1998-12-15 Yair Shoham Codage a excitation stochastique avec contrainte
JP2626223B2 (ja) * 1990-09-26 1997-07-02 日本電気株式会社 音声符号化装置
JPH04207410A (ja) * 1990-11-30 1992-07-29 Canon Inc デジタルフイルタ装置
JPH06138896A (ja) * 1991-05-31 1994-05-20 Motorola Inc 音声フレームを符号化するための装置および方法

Also Published As

Publication number Publication date
SE9403630D0 (sv) 1994-10-24
DE4491015C2 (de) 1996-10-24
JP3070955B2 (ja) 2000-07-31
JPH07506202A (ja) 1995-07-06
JP3236592B2 (ja) 2001-12-10
JP2000155597A (ja) 2000-06-06
CA2132006A1 (fr) 1994-09-01
CN1074846C (zh) 2001-11-14
BR9404230A (pt) 1999-06-15
AU669788B2 (en) 1996-06-20
CA2132006C (fr) 1998-04-28
US5570453A (en) 1996-10-29
GB2280828B (en) 1997-07-30
GB2280828A (en) 1995-02-08
FR2702075A1 (fr) 1994-09-02
US5434947A (en) 1995-07-18
DE4491015T1 (de) 1995-09-21
AU6125594A (en) 1994-09-14
SE9403630L (sv) 1994-12-21
SE517793C2 (sv) 2002-07-16
CN1104010A (zh) 1995-06-21
GB9420077D0 (en) 1994-11-23
WO1994019790A1 (fr) 1994-09-01

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