SE9403630D0 - Sätt att åstadkomma ett spektralbrusviktningsfilter att använda i en talkodare - Google Patents

Sätt att åstadkomma ett spektralbrusviktningsfilter att använda i en talkodare

Info

Publication number
SE9403630D0
SE9403630D0 SE9403630A SE9403630A SE9403630D0 SE 9403630 D0 SE9403630 D0 SE 9403630D0 SE 9403630 A SE9403630 A SE 9403630A SE 9403630 A SE9403630 A SE 9403630A SE 9403630 D0 SE9403630 D0 SE 9403630D0
Authority
SE
Sweden
Prior art keywords
filter
order
speech coder
spectral noise
noise weighting
Prior art date
Application number
SE9403630A
Other languages
English (en)
Other versions
SE9403630L (sv
SE517793C2 (sv
Inventor
Ira A Gerson
Mark A Jasiuk
Matthew A Hartman
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 SE9403630D0 publication Critical patent/SE9403630D0/sv
Publication of SE9403630L publication Critical patent/SE9403630L/sv
Publication of SE517793C2 publication Critical patent/SE517793C2/sv

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)
SE9403630A 1993-02-23 1994-10-24 Sätt att åstadkomma ett spektralbrusviktningsfilter att använda i en talkodare SE517793C2 (sv)

Applications Claiming Priority (2)

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
PCT/US1994/000724 WO1994019790A1 (en) 1993-02-23 1994-01-18 Method for generating a spectral noise weighting filter for use in a speech coder

Publications (3)

Publication Number Publication Date
SE9403630D0 true SE9403630D0 (sv) 1994-10-24
SE9403630L SE9403630L (sv) 1994-12-21
SE517793C2 SE517793C2 (sv) 2002-07-16

Family

ID=21803778

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9403630A SE517793C2 (sv) 1993-02-23 1994-10-24 Sätt att åstadkomma ett spektralbrusviktningsfilter att använda i en talkodare

Country Status (11)

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

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
DE69628103T2 (de) * 1995-09-14 2004-04-01 Kabushiki Kaisha Toshiba, Kawasaki Verfahren und Filter zur Hervorbebung von Formanten
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
WO2004027754A1 (en) * 2002-09-17 2004-04-01 Koninklijke Philips Electronics N.V. A method of synthesizing of an unvoiced speech signal
EP1513137A1 (en) * 2003-08-22 2005-03-09 MicronasNIT LCC, Novi Sad Institute of Information Technologies Speech processing system and method with multi-pulse excitation
JP5420175B2 (ja) * 2005-01-31 2014-02-19 スカイプ 通信システムにおける隠蔽フレームの生成方法
US8725506B2 (en) * 2010-06-30 2014-05-13 Intel Corporation Speech audio processing
CN105355209B (zh) 2010-07-02 2020-02-14 杜比国际公司 音高增强后置滤波器
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 (en) * 1989-09-01 1998-12-15 Yair Shoham Constrained-stochastic-excitation coding
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
CN1074846C (zh) 2001-11-14
BR9404230A (pt) 1999-06-15
AU669788B2 (en) 1996-06-20
JP3070955B2 (ja) 2000-07-31
GB9420077D0 (en) 1994-11-23
DE4491015T1 (de) 1995-09-21
SE9403630L (sv) 1994-12-21
US5434947A (en) 1995-07-18
CA2132006A1 (en) 1994-09-01
JPH07506202A (ja) 1995-07-06
US5570453A (en) 1996-10-29
CN1104010A (zh) 1995-06-21
SE517793C2 (sv) 2002-07-16
FR2702075B1 (fr) 1996-04-26
AU6125594A (en) 1994-09-14
CA2132006C (en) 1998-04-28
JP3236592B2 (ja) 2001-12-10
JP2000155597A (ja) 2000-06-06
WO1994019790A1 (en) 1994-09-01
GB2280828A (en) 1995-02-08
DE4491015C2 (de) 1996-10-24
FR2702075A1 (fr) 1994-09-02
GB2280828B (en) 1997-07-30

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