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DE69708693C5 - Verfahren und Vorrichtung für CELP Sprachcodierung oder -decodierung - Google Patents

Verfahren und Vorrichtung für CELP Sprachcodierung oder -decodierung Download PDF

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Publication number
DE69708693C5
DE69708693C5 DE69708693.3T DE69708693T DE69708693C5 DE 69708693 C5 DE69708693 C5 DE 69708693C5 DE 69708693 T DE69708693 T DE 69708693T DE 69708693 C5 DE69708693 C5 DE 69708693C5
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DE
Germany
Prior art keywords
vector
random
random code
codebook
code vector
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
DE69708693.3T
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English (en)
Other versions
DE69708693D1 (de
DE69708693T2 (de
Inventor
Kazutoshi Yasunaga
Toshiyuki Morii
Taisuke Watanabe
Hiroyuki Ehara
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Panasonic Corp
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Godo Kaisha IP Bridge 1
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Priority claimed from JP29473896A external-priority patent/JP4003240B2/ja
Priority claimed from JP31032496A external-priority patent/JP4006770B2/ja
Priority claimed from JP03458397A external-priority patent/JP3700310B2/ja
Priority claimed from JP03458297A external-priority patent/JP3174742B2/ja
Application filed by Godo Kaisha IP Bridge 1 filed Critical Godo Kaisha IP Bridge 1
Publication of DE69708693D1 publication Critical patent/DE69708693D1/de
Application granted granted Critical
Publication of DE69708693T2 publication Critical patent/DE69708693T2/de
Anticipated expiration legal-status Critical
Publication of DE69708693C5 publication Critical patent/DE69708693C5/de
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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
    • G10L19/135—Vector sum excited linear prediction [VSELP]
    • 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
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0007—Codebook element generation
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0013—Codebook search algorithms

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)
  • Analogue/Digital Conversion (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

A CELP speech coder or decoder, comprising:
an adaptive codebook (223) for generating an adaptive code vector;
a random codebook (221,211), for generating a random code vector;
a synthesis filter (215) for receiving a random code vector generated from the random codebook (221,211) so as to perform LPC synthesis;
means (225) for determining a voiced/unvoiced characteristic of the input speech;
a second random codebook for generating random code vectors; and
selecting means for selecting one of said random codebook and said second random codebook; characterized in that
said random codebook (221, 211) is formed by an excitation vector generator comprising fixed waveform arranging means (182) for arranging one or more fixed waveforms (v1, v2, v3) stored in a fixed waveform storage means (181) in accordance with the positions (P1, P2, P3) and polarities of an input impulse vector, and in that
the random codebook generates the random code vector in accordance with the determined voiced/unvoiced characteristic,
wherein the determination of the voiced/unvoiced characteristic of the input speech is based on a value of a quantized pitch gain, and
if the value of the quantized pitch gain is small, by which it is considered that the input speech is unvoiced, said selecting means selects said random codebook.

Description

Claims (10)

  1. A CELP speech coder or decoder, comprising: an adaptive codebook (223) for generating an adaptive code vector; a random codebook (221,211), for generating a random code vector; a synthesis filter (215) for receiving a random code vector generated from the random codebook (221,211) so as to perform LPC synthesis; means (225) for determining a voiced/unvoiced characteristic of the input speech; a second random codebook for generating random code vectors; and selecting means for selecting one of said random codebook and said second random codebook; characterized in that said random codebook (221, 211) is formed by an excitation vector generator comprising fixed waveform arranging means (182) for arranging one or more fixed waveforms (v1, v2, v3) stored in a fixed waveform storage means (181) in accordance with the positions (P1, P2, P3) and polarities of an input impulse vector, and in that the random codebook generates the random code vector in accordance with the determined voiced/unvoiced characteristic, wherein the determination of the voiced/unvoiced characteristic of the input speech is based on a value of a quantized pitch gain, and if the value of the quantized pitch gain is small, by which it is considered that the input speech is unvoiced, said selecting means selects said random codebook.
  2. A CELP speech coder/decoder according to claim 1, wherein said fixed waveform arranging means (182) shifts said fixed waveforms read from the fixed waveform storage means (181) according to the positions (P1, P2, P3) and polarities of said pulses of said input impulse vector.
  3. A CELP speech coder/decoder according to claim 1, wherein said fixed waveform arranging means (182) convolutes said fixed waveforms read from the fixed waveform storage means (181) with said input impulse vector (P1, P2, P3).
  4. The CELP speech coder/decoder according to one of claims 1 to 3, wherein the excitation vector generator generates a corresponding random code vector by changing said fixed waveforms either to be arranged, shifted or convoluted.
  5. The CELP speech coder/decoder according to one of claims 1 to 3, wherein the excitation vector generator generates a different random code vector by changing the fixed waveform used for the modification of the vector provided from an algebraic codebook.
  6. A CELP speech coding or decoding method, comprising the steps of; generating an adaptive code vector; determining a voiced/unvoiced characteristic of the input speech; generating a random code vector in accordance with said determined voiced/unvoiced characteristic by arranging one or more fixed waveforms in accordance with the positions (P1, P2, P3) and polarities of an input impulse vector; wherein one of a random code vector generated by said arranging and a random code vector not modified by said arranging is selected; outputting the random code vector to a synthesis filter to perform LPC synthesis, wherein the determination of the voiced/unvoiced characteristic of the input speech is based on a value of a quantized pitch gain, and if the value of the quantized pitch gain is small, by which it is considered that the input speech is unvoiced, the random code vector generated by the arranging is selected.
  7. The method according to claim 6, wherein said arranging step shifts said fixed waveforms according to the positions and polarities of said pulses of said input impulse vector.
  8. The method according to claim 6, wherein said arranging step convolutes said fixed waveforms with said input impulse vector.
  9. The method according to one of claims 6-8, wherein said random code vector is generated by changing said fixed waveforms either to be arranged, shifted or convoluted.
  10. The method according to one of claims 6 to 9, wherein said different random code vector is generated by changing the fixed waveform used for the modification of the vector provided from an algebraic codebook.
DE69708693.3T 1996-11-07 1997-11-06 Verfahren und Vorrichtung für CELP Sprachcodierung oder -decodierung Expired - Lifetime DE69708693C5 (de)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP29473896A JP4003240B2 (ja) 1996-11-07 1996-11-07 音声符号化装置及び音声復号化装置
JP29473896 1996-11-07
JP31032496 1996-11-21
JP31032496A JP4006770B2 (ja) 1996-11-21 1996-11-21 ノイズ推定装置、ノイズ削減装置、ノイズ推定方法、及びノイズ削減方法
JP03458397A JP3700310B2 (ja) 1997-02-19 1997-02-19 ベクトル量子化装置及びベクトル量子化方法
JP3458297 1997-02-19
JP03458297A JP3174742B2 (ja) 1997-02-19 1997-02-19 Ｃｅｌｐ型音声復号化装置及びｃｅｌｐ型音声復号化方法
JP3458397 1997-02-19

Publications (3)

Publication Number Publication Date
DE69708693D1 DE69708693D1 (de) 2002-01-10
DE69708693T2 DE69708693T2 (de) 2002-08-01
DE69708693C5 true DE69708693C5 (de) 2021-10-28

Family

ID=27459954

Family Applications (17)

Application Number Title Priority Date Filing Date
DE69712927T Expired - Lifetime DE69712927T2 (de) 1996-11-07 1997-11-06 CELP-Codec
DE69711715T Expired - Lifetime DE69711715T2 (de) 1996-11-07 1997-11-06 Anregungsvektorerzeugung
DE69712537T Expired - Lifetime DE69712537T2 (de) 1996-11-07 1997-11-06 Verfahren zur Erzeugung eines Vektorquantisierungs-Codebuchs
DE69712538T Expired - Lifetime DE69712538T2 (de) 1996-11-07 1997-11-06 Verfahren zur Erzeugung eines Vektorquantisierungs-Codebuchs
DE69708696T Expired - Lifetime DE69708696T2 (de) 1996-11-07 1997-11-06 Verfahren und Vorrichtung zur Erzeugung eines Vektorquantisierungs-codebuchs
DE69708693.3T Expired - Lifetime DE69708693C5 (de) 1996-11-07 1997-11-06 Verfahren und Vorrichtung für CELP Sprachcodierung oder -decodierung
DE69710505T Expired - Lifetime DE69710505T2 (de) 1996-11-07 1997-11-06 Verfahren und Vorrichtung zur Erzeugung eines Vektorquantisierungs-Codebuchs
DE69708697T Expired - Lifetime DE69708697T2 (de) 1996-11-07 1997-11-06 Verfahren zur Erzeugung eines Vektorquantisierungs-codebuchs, und Vorrichtung und Verfahren zur Sprachcodierung/-decodierung
DE69730316T Expired - Lifetime DE69730316T2 (de) 1996-11-07 1997-11-06 Schallquellengenerator, sprachkodierer und sprachdekodierer
DE69715478T Expired - Lifetime DE69715478T2 (de) 1996-11-07 1997-11-06 Verfahren und Vorrichtung zur CELP Sprachkodierung und -dekodierung
DE69721595T Expired - Lifetime DE69721595T2 (de) 1996-11-07 1997-11-06 Verfahren zur Erzeugung eines Vektorquantisierungs-Codebuchs
DE69712539T Expired - Lifetime DE69712539T2 (de) 1996-11-07 1997-11-06 Verfahren und Vorrichtung zur Erzeugung eines Vektorquantisierungs-Codebuchs
DE69712535T Expired - Lifetime DE69712535T2 (de) 1996-11-07 1997-11-06 Vorrichtung zur Erzeugung eines Vektorquantisierungs-Codebuchs
DE69710794T Expired - Lifetime DE69710794T2 (de) 1996-11-07 1997-11-06 Vorrichtungzur Erzeugung eines Vektorquantisierungs-Codebuchs
DE69712928T Expired - Lifetime DE69712928T2 (de) 1996-11-07 1997-11-06 Verfahren zur Erzeugung eines Vektorquantisierungs-codebuchs
DE69723324T Expired - Lifetime DE69723324T2 (de) 1996-11-07 1997-11-06 Verfahren zur Erzeugung eines Vektorquantisierungs-codebuchs
DE69713633T Expired - Lifetime DE69713633T2 (de) 1996-11-07 1997-11-06 Verfahren zur Erzeugung eines Vektorquantisierungs-Codebuchs

Family Applications Before (5)

Application Number Title Priority Date Filing Date
DE69712927T Expired - Lifetime DE69712927T2 (de) 1996-11-07 1997-11-06 CELP-Codec
DE69711715T Expired - Lifetime DE69711715T2 (de) 1996-11-07 1997-11-06 Anregungsvektorerzeugung
DE69712537T Expired - Lifetime DE69712537T2 (de) 1996-11-07 1997-11-06 Verfahren zur Erzeugung eines Vektorquantisierungs-Codebuchs
DE69712538T Expired - Lifetime DE69712538T2 (de) 1996-11-07 1997-11-06 Verfahren zur Erzeugung eines Vektorquantisierungs-Codebuchs
DE69708696T Expired - Lifetime DE69708696T2 (de) 1996-11-07 1997-11-06 Verfahren und Vorrichtung zur Erzeugung eines Vektorquantisierungs-codebuchs

Family Applications After (11)

Application Number Title Priority Date Filing Date
DE69710505T Expired - Lifetime DE69710505T2 (de) 1996-11-07 1997-11-06 Verfahren und Vorrichtung zur Erzeugung eines Vektorquantisierungs-Codebuchs
DE69708697T Expired - Lifetime DE69708697T2 (de) 1996-11-07 1997-11-06 Verfahren zur Erzeugung eines Vektorquantisierungs-codebuchs, und Vorrichtung und Verfahren zur Sprachcodierung/-decodierung
DE69730316T Expired - Lifetime DE69730316T2 (de) 1996-11-07 1997-11-06 Schallquellengenerator, sprachkodierer und sprachdekodierer
DE69715478T Expired - Lifetime DE69715478T2 (de) 1996-11-07 1997-11-06 Verfahren und Vorrichtung zur CELP Sprachkodierung und -dekodierung
DE69721595T Expired - Lifetime DE69721595T2 (de) 1996-11-07 1997-11-06 Verfahren zur Erzeugung eines Vektorquantisierungs-Codebuchs
DE69712539T Expired - Lifetime DE69712539T2 (de) 1996-11-07 1997-11-06 Verfahren und Vorrichtung zur Erzeugung eines Vektorquantisierungs-Codebuchs
DE69712535T Expired - Lifetime DE69712535T2 (de) 1996-11-07 1997-11-06 Vorrichtung zur Erzeugung eines Vektorquantisierungs-Codebuchs
DE69710794T Expired - Lifetime DE69710794T2 (de) 1996-11-07 1997-11-06 Vorrichtungzur Erzeugung eines Vektorquantisierungs-Codebuchs
DE69712928T Expired - Lifetime DE69712928T2 (de) 1996-11-07 1997-11-06 Verfahren zur Erzeugung eines Vektorquantisierungs-codebuchs
DE69723324T Expired - Lifetime DE69723324T2 (de) 1996-11-07 1997-11-06 Verfahren zur Erzeugung eines Vektorquantisierungs-codebuchs
DE69713633T Expired - Lifetime DE69713633T2 (de) 1996-11-07 1997-11-06 Verfahren zur Erzeugung eines Vektorquantisierungs-Codebuchs

Country Status (9)

Country Link
US (20) US6453288B1 (de)
EP (16) EP1071079B1 (de)
KR (9) KR100339168B1 (de)
CN (11) CN1170269C (de)
AU (1) AU4884297A (de)
CA (1) CA2242345C (de)
DE (17) DE69712927T2 (de)
HK (2) HK1017472A1 (de)
WO (1) WO1998020483A1 (de)

Families Citing this family (143)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5995539A (en) * 1993-03-17 1999-11-30 Miller; William J. Method and apparatus for signal transmission and reception
EP1071079B1 (de) * 1996-11-07 2002-06-26 Matsushita Electric Industrial Co., Ltd. Verfahren zur Erzeugung eines Vektorquantisierungs-Codebuchs
EP1746583B1 (de) * 1997-10-22 2008-09-17 Matsushita Electric Industrial Co., Ltd. Tonkodierer und Tondekodierer
WO1999034354A1 (en) 1997-12-24 1999-07-08 Mitsubishi Denki Kabushiki Kaisha Sound encoding method and sound decoding method, and sound encoding device and sound decoding device
US7072832B1 (en) 1998-08-24 2006-07-04 Mindspeed Technologies, Inc. System for speech encoding having an adaptive encoding arrangement
JP3343082B2 (ja) * 1998-10-27 2002-11-11 松下電器産業株式会社 Ｃｅｌｐ型音声符号化装置
US6687663B1 (en) * 1999-06-25 2004-02-03 Lake Technology Limited Audio processing method and apparatus
FI116992B (fi) * 1999-07-05 2006-04-28 Nokia Corp Menetelmät, järjestelmä ja laitteet audiosignaalin koodauksen ja siirron tehostamiseksi
JP3784583B2 (ja) * 1999-08-13 2006-06-14 沖電気工業株式会社 音声蓄積装置
CA2348659C (en) 1999-08-23 2008-08-05 Kazutoshi Yasunaga Apparatus and method for speech coding
JP2001075600A (ja) * 1999-09-07 2001-03-23 Mitsubishi Electric Corp 音声符号化装置および音声復号化装置
JP3417362B2 (ja) * 1999-09-10 2003-06-16 日本電気株式会社 音声信号復号方法及び音声信号符号化復号方法
EP1221694B1 (de) * 1999-09-14 2006-07-19 Fujitsu Limited Sprachkodierer/dekodierer
US6636829B1 (en) * 1999-09-22 2003-10-21 Mindspeed Technologies, Inc. Speech communication system and method for handling lost frames
JP3594854B2 (ja) 1999-11-08 2004-12-02 三菱電機株式会社 音声符号化装置及び音声復号化装置
USRE43209E1 (en) 1999-11-08 2012-02-21 Mitsubishi Denki Kabushiki Kaisha Speech coding apparatus and speech decoding apparatus
WO2001052241A1 (en) * 2000-01-11 2001-07-19 Matsushita Electric Industrial Co., Ltd. Multi-mode voice encoding device and decoding device
ATE420432T1 (de) * 2000-04-24 2009-01-15 Qualcomm Inc Verfahren und vorrichtung zur prädiktiven quantisierung von stimmhaften sprachsignalen
JP3426207B2 (ja) * 2000-10-26 2003-07-14 三菱電機株式会社 音声符号化方法および装置
JP3404024B2 (ja) * 2001-02-27 2003-05-06 三菱電機株式会社 音声符号化方法および音声符号化装置
US7031916B2 (en) * 2001-06-01 2006-04-18 Texas Instruments Incorporated Method for converging a G.729 Annex B compliant voice activity detection circuit
JP3888097B2 (ja) * 2001-08-02 2007-02-28 松下電器産業株式会社 ピッチ周期探索範囲設定装置、ピッチ周期探索装置、復号化適応音源ベクトル生成装置、音声符号化装置、音声復号化装置、音声信号送信装置、音声信号受信装置、移動局装置、及び基地局装置
US7110942B2 (en) * 2001-08-14 2006-09-19 Broadcom Corporation Efficient excitation quantization in a noise feedback coding system using correlation techniques
US7206740B2 (en) * 2002-01-04 2007-04-17 Broadcom Corporation Efficient excitation quantization in noise feedback coding with general noise shaping
US7580834B2 (en) * 2002-02-20 2009-08-25 Panasonic Corporation Fixed sound source vector generation method and fixed sound source codebook
US7694326B2 (en) * 2002-05-17 2010-04-06 Sony Corporation Signal processing system and method, signal processing apparatus and method, recording medium, and program
JP4304360B2 (ja) * 2002-05-22 2009-07-29 日本電気株式会社 音声符号化復号方式間の符号変換方法および装置とその記憶媒体
US7103538B1 (en) * 2002-06-10 2006-09-05 Mindspeed Technologies, Inc. Fixed code book with embedded adaptive code book
CA2392640A1 (en) * 2002-07-05 2004-01-05 Voiceage Corporation A method and device for efficient in-based dim-and-burst signaling and half-rate max operation in variable bit-rate wideband speech coding for cdma wireless systems
JP2004101588A (ja) * 2002-09-05 2004-04-02 Hitachi Kokusai Electric Inc 音声符号化方法及び音声符号化装置
AU2002952079A0 (en) * 2002-10-16 2002-10-31 Darrell Ballantyne Copeman Winch
JP3887598B2 (ja) * 2002-11-14 2007-02-28 松下電器産業株式会社 確率的符号帳の音源の符号化方法及び復号化方法
US7249014B2 (en) * 2003-03-13 2007-07-24 Intel Corporation Apparatus, methods and articles incorporating a fast algebraic codebook search technique
KR100480341B1 (ko) * 2003-03-13 2005-03-31 한국전자통신연구원 광대역 저전송률 음성 신호의 부호화기
US7742926B2 (en) * 2003-04-18 2010-06-22 Realnetworks, Inc. Digital audio signal compression method and apparatus
US20040208169A1 (en) * 2003-04-18 2004-10-21 Reznik Yuriy A. Digital audio signal compression method and apparatus
US7370082B2 (en) * 2003-05-09 2008-05-06 Microsoft Corporation Remote invalidation of pre-shared RDMA key
KR100546758B1 (ko) * 2003-06-30 2006-01-26 한국전자통신연구원 음성의 상호부호화시 전송률 결정 장치 및 방법
US7146309B1 (en) 2003-09-02 2006-12-05 Mindspeed Technologies, Inc. Deriving seed values to generate excitation values in a speech coder
US8369405B2 (en) 2004-05-04 2013-02-05 Qualcomm Incorporated Method and apparatus for motion compensated frame rate up conversion for block-based low bit rate video
JP4445328B2 (ja) 2004-05-24 2010-04-07 パナソニック株式会社 音声・楽音復号化装置および音声・楽音復号化方法
JP3827317B2 (ja) * 2004-06-03 2006-09-27 任天堂株式会社 コマンド処理装置
JP5038134B2 (ja) * 2004-07-01 2012-10-03 クゥアルコム・インコーポレイテッド スケーラブルなビデオ符号化において、フレームレートアップ変換技術を使用する方法及び装置
KR100672355B1 (ko) * 2004-07-16 2007-01-24 엘지전자 주식회사 음성 코딩/디코딩 방법 및 그를 위한 장치
JP2008507915A (ja) 2004-07-20 2008-03-13 クゥアルコム・インコーポレイテッド 映像圧縮のための符号器補助式フレーム速度アップコンバージョンのための方法及び装置
US8553776B2 (en) * 2004-07-21 2013-10-08 QUALCOMM Inorporated Method and apparatus for motion vector assignment
CN101006495A (zh) * 2004-08-31 2007-07-25 松下电器产业株式会社 语音编码装置、语音解码装置、通信装置以及语音编码方法
KR20070084002A (ko) * 2004-11-05 2007-08-24 마츠시타 덴끼 산교 가부시키가이샤 스케일러블 복호화 장치 및 스케일러블 부호화 장치
BRPI0515814A (pt) * 2004-12-10 2008-08-05 Matsushita Electric Ind Co Ltd dispositivo de codificação de banda larga, dispositivo de predição de lsp de banda larga, dispositivo de codificação de banda escalonável, método de codificação de banda larga
KR100707173B1 (ko) * 2004-12-21 2007-04-13 삼성전자주식회사 저비트율 부호화/복호화방법 및 장치
US20060217983A1 (en) * 2005-03-28 2006-09-28 Tellabs Operations, Inc. Method and apparatus for injecting comfort noise in a communications system
US20060217970A1 (en) * 2005-03-28 2006-09-28 Tellabs Operations, Inc. Method and apparatus for noise reduction
US20060215683A1 (en) * 2005-03-28 2006-09-28 Tellabs Operations, Inc. Method and apparatus for voice quality enhancement
US20060217972A1 (en) * 2005-03-28 2006-09-28 Tellabs Operations, Inc. Method and apparatus for modifying an encoded signal
US20060217988A1 (en) * 2005-03-28 2006-09-28 Tellabs Operations, Inc. Method and apparatus for adaptive level control
DE602005025027D1 (de) * 2005-03-30 2011-01-05 Nokia Corp Quellencodierung und/oder -decodierung
EP1866914B1 (de) * 2005-04-01 2010-03-03 Qualcomm Incorporated Vorrichtung und Verfahren für die Teilband-Sprachkodierung
TWI317933B (en) 2005-04-22 2009-12-01 Qualcomm Inc Methods, data storage medium,apparatus of signal processing,and cellular telephone including the same
WO2006134992A1 (ja) * 2005-06-17 2006-12-21 Matsushita Electric Industrial Co., Ltd. ポストフィルタ、復号化装置及びポストフィルタ処理方法
US8150684B2 (en) * 2005-06-29 2012-04-03 Panasonic Corporation Scalable decoder preventing signal degradation and lost data interpolation method
US8081764B2 (en) * 2005-07-15 2011-12-20 Panasonic Corporation Audio decoder
WO2007025061A2 (en) * 2005-08-25 2007-03-01 Bae Systems Information And Electronics Systems Integration Inc. Coherent multichip rfid tag and method and appartus for creating such coherence
JP5159318B2 (ja) * 2005-12-09 2013-03-06 パナソニック株式会社 固定符号帳探索装置および固定符号帳探索方法
US8612216B2 (en) * 2006-01-31 2013-12-17 Siemens Enterprise Communications Gmbh & Co. Kg Method and arrangements for audio signal encoding
EP1979899B1 (de) * 2006-01-31 2015-03-11 Unify GmbH & Co. KG Verfahren und anordnungen zur audiosignalkodierung
US7958164B2 (en) * 2006-02-16 2011-06-07 Microsoft Corporation Visual design of annotated regular expression
US20070230564A1 (en) * 2006-03-29 2007-10-04 Qualcomm Incorporated Video processing with scalability
WO2007114290A1 (ja) * 2006-03-31 2007-10-11 Matsushita Electric Industrial Co., Ltd. ベクトル量子化装置、ベクトル逆量子化装置、ベクトル量子化方法及びベクトル逆量子化方法
US8750387B2 (en) * 2006-04-04 2014-06-10 Qualcomm Incorporated Adaptive encoder-assisted frame rate up conversion
US8634463B2 (en) * 2006-04-04 2014-01-21 Qualcomm Incorporated Apparatus and method of enhanced frame interpolation in video compression
WO2007129726A1 (ja) * 2006-05-10 2007-11-15 Panasonic Corporation 音声符号化装置及び音声符号化方法
US20090198491A1 (en) * 2006-05-12 2009-08-06 Panasonic Corporation Lsp vector quantization apparatus, lsp vector inverse-quantization apparatus, and their methods
WO2008001866A1 (fr) * 2006-06-29 2008-01-03 Panasonic Corporation dispositif de codage vocal et procédé de codage vocal
US8335684B2 (en) 2006-07-12 2012-12-18 Broadcom Corporation Interchangeable noise feedback coding and code excited linear prediction encoders
EP2051244A4 (de) * 2006-08-08 2010-04-14 Panasonic Corp Audiocodierungseinrichtung und audiocodierungsverfahren
JP5061111B2 (ja) * 2006-09-15 2012-10-31 パナソニック株式会社 音声符号化装置および音声符号化方法
WO2008047795A1 (fr) * 2006-10-17 2008-04-24 Panasonic Corporation Dispositif de quantification vectorielle, dispositif de quantification vectorielle inverse et procédé associé
JP5231243B2 (ja) 2006-11-28 2013-07-10 パナソニック株式会社 符号化装置及び符号化方法
CN101502123B (zh) * 2006-11-30 2011-08-17 松下电器产业株式会社 编码装置
JP5328368B2 (ja) * 2006-12-13 2013-10-30 パナソニック株式会社 符号化装置、復号装置、およびこれらの方法
WO2008072732A1 (ja) * 2006-12-14 2008-06-19 Panasonic Corporation 音声符号化装置および音声符号化方法
CN101548317B (zh) * 2006-12-15 2012-01-18 松下电器产业株式会社 自适应激励矢量量化装置和自适应激励矢量量化方法
EP2101319B1 (de) * 2006-12-15 2015-09-16 Panasonic Intellectual Property Corporation of America Einrichtung zur adaptiven schallquellen-vektorquantisierung und verfahren dafür
US8036886B2 (en) * 2006-12-22 2011-10-11 Digital Voice Systems, Inc. Estimation of pulsed speech model parameters
US8688437B2 (en) 2006-12-26 2014-04-01 Huawei Technologies Co., Ltd. Packet loss concealment for speech coding
GB0703275D0 (en) * 2007-02-20 2007-03-28 Skype Ltd Method of estimating noise levels in a communication system
EP2128855A1 (de) * 2007-03-02 2009-12-02 Panasonic Corporation Sprachcodierungseinrichtung und sprachcodierungsverfahren
JP5018193B2 (ja) 2007-04-06 2012-09-05 ヤマハ株式会社 雑音抑圧装置およびプログラム
US8489396B2 (en) * 2007-07-25 2013-07-16 Qnx Software Systems Limited Noise reduction with integrated tonal noise reduction
JP5483000B2 (ja) * 2007-09-19 2014-05-07 日本電気株式会社 雑音抑圧装置、その方法及びプログラム
CN101821800B (zh) * 2007-10-12 2012-09-26 松下电器产业株式会社 矢量量化装置、矢量反量化装置和其方法
US8271417B2 (en) * 2007-10-19 2012-09-18 Oracle International Corporation Health meter
WO2009081568A1 (ja) * 2007-12-21 2009-07-02 Panasonic Corporation 符号化装置、復号装置および符号化方法
US8306817B2 (en) * 2008-01-08 2012-11-06 Microsoft Corporation Speech recognition with non-linear noise reduction on Mel-frequency cepstra
WO2009090876A1 (ja) * 2008-01-16 2009-07-23 Panasonic Corporation ベクトル量子化装置、ベクトル逆量子化装置、およびこれらの方法
KR20090122143A (ko) * 2008-05-23 2009-11-26 엘지전자 주식회사 오디오 신호 처리 방법 및 장치
KR101616873B1 (ko) * 2008-12-23 2016-05-02 삼성전자주식회사 디지털 앰프의 소요 전력량 예측 장치 및 그 방법
CN101604525B (zh) * 2008-12-31 2011-04-06 华为技术有限公司 基音增益获取方法、装置及编码器、解码器
US20100174539A1 (en) * 2009-01-06 2010-07-08 Qualcomm Incorporated Method and apparatus for vector quantization codebook search
GB2466672B (en) * 2009-01-06 2013-03-13 Skype Speech coding
GB2466669B (en) * 2009-01-06 2013-03-06 Skype Speech coding
GB2466674B (en) * 2009-01-06 2013-11-13 Skype Speech coding
GB2466671B (en) * 2009-01-06 2013-03-27 Skype Speech encoding
GB2466670B (en) * 2009-01-06 2012-11-14 Skype Speech encoding
GB2466673B (en) 2009-01-06 2012-11-07 Skype Quantization
GB2466675B (en) 2009-01-06 2013-03-06 Skype Speech coding
JP5459688B2 (ja) 2009-03-31 2014-04-02 ▲ホア▼▲ウェイ▼技術有限公司 復号信号のスペクトルを調整する方法、装置、および音声復号システム
CN101538923B (zh) * 2009-04-07 2011-05-11 上海翔实玻璃有限公司 新型墙体装饰安装结构
JP2010249939A (ja) * 2009-04-13 2010-11-04 Sony Corp ノイズ低減装置、ノイズ判定方法
EP2246845A1 (de) * 2009-04-21 2010-11-03 Siemens Medical Instruments Pte. Ltd. Verfahren und akustische Signalverarbeitungsvorrichtung zur Schätzung von linearen prädiktiven Kodierungskoeffizienten
US8452606B2 (en) * 2009-09-29 2013-05-28 Skype Speech encoding using multiple bit rates
JP5525540B2 (ja) * 2009-10-30 2014-06-18 パナソニック株式会社 符号化装置および符号化方法
PT2515299T (pt) * 2009-12-14 2018-10-10 Fraunhofer Ges Forschung Dispositivo de quantificação vetorial, dispositivo de codificação de voz, método de quantificação vetorial e método de codificação de voz
US8924222B2 (en) 2010-07-30 2014-12-30 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for coding of harmonic signals
US9208792B2 (en) 2010-08-17 2015-12-08 Qualcomm Incorporated Systems, methods, apparatus, and computer-readable media for noise injection
US8599820B2 (en) * 2010-09-21 2013-12-03 Anite Finland Oy Apparatus and method for communication
US9972325B2 (en) 2012-02-17 2018-05-15 Huawei Technologies Co., Ltd. System and method for mixed codebook excitation for speech coding
PL2831757T3 (pl) * 2012-03-29 2019-11-29 Ericsson Telefon Ab L M Wektorowy kwantyzator
RU2495504C1 (ru) * 2012-06-25 2013-10-10 Государственное казенное образовательное учреждение высшего профессионального образования Академия Федеральной службы охраны Российской Федерации (Академия ФСО России) Способ снижения скорости передачи низкоскоростных вокодеров с линейным предсказанием
RU2636126C2 (ru) 2012-10-05 2017-11-20 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Устройство для кодирования речевого сигнала с использованием acelp в автокорреляционной области
US10447516B2 (en) * 2012-11-27 2019-10-15 Nec Corporation Signal processing apparatus, signal processing method, and signal processing program
WO2014084000A1 (ja) * 2012-11-27 2014-06-05 日本電気株式会社 信号処理装置、信号処理方法、および信号処理プログラム
CN110070877B (zh) * 2013-07-18 2022-11-11 日本电信电话株式会社 线性预测分析装置、线性预测分析方法以及记录介质
CN103714820B (zh) * 2013-12-27 2017-01-11 广州华多网络科技有限公司 参数域的丢包隐藏方法及装置
US10885089B2 (en) * 2015-08-21 2021-01-05 Cortical.Io Ag Methods and systems for identifying a level of similarity between a filtering criterion and a data item within a set of streamed documents
US12147459B2 (en) * 2014-08-07 2024-11-19 Cortical.Io Ag Methods and systems for mapping data items to sparse distributed representations
US10394851B2 (en) 2014-08-07 2019-08-27 Cortical.Io Ag Methods and systems for mapping data items to sparse distributed representations
US9953660B2 (en) * 2014-08-19 2018-04-24 Nuance Communications, Inc. System and method for reducing tandeming effects in a communication system
US9582425B2 (en) 2015-02-18 2017-02-28 International Business Machines Corporation Set selection of a set-associative storage container
CN104966517B (zh) * 2015-06-02 2019-02-01 华为技术有限公司 一种音频信号增强方法和装置
US20160372127A1 (en) * 2015-06-22 2016-12-22 Qualcomm Incorporated Random noise seed value generation
RU2631968C2 (ru) * 2015-07-08 2017-09-29 Федеральное государственное казенное военное образовательное учреждение высшего образования "Академия Федеральной службы охраны Российской Федерации" (Академия ФСО России) Способ низкоскоростного кодирования и декодирования речевого сигнала
US10044547B2 (en) * 2015-10-30 2018-08-07 Taiwan Semiconductor Manufacturing Company, Ltd. Digital code recovery with preamble
CN105976822B (zh) * 2016-07-12 2019-12-03 西北工业大学 基于参数化超增益波束形成器的音频信号提取方法及装置
US10572221B2 (en) 2016-10-20 2020-02-25 Cortical.Io Ag Methods and systems for identifying a level of similarity between a plurality of data representations
CN106788433B (zh) * 2016-12-13 2019-07-05 山东大学 数字噪声源、数据处理系统及数据处理方法
US10222864B2 (en) 2017-04-17 2019-03-05 Facebook, Inc. Machine translation of consonant-vowel pairs and syllabic units to haptic sequences for transmission via haptic device
CN110751960B (zh) * 2019-10-16 2022-04-26 北京网众共创科技有限公司 噪声数据的确定方法及装置
CN110739002B (zh) * 2019-10-16 2022-02-22 中山大学 基于生成对抗网络的复数域语音增强方法、系统及介质
US11270714B2 (en) 2020-01-08 2022-03-08 Digital Voice Systems, Inc. Speech coding using time-varying interpolation
US11734332B2 (en) 2020-11-19 2023-08-22 Cortical.Io Ag Methods and systems for reuse of data item fingerprints in generation of semantic maps
US12254895B2 (en) 2021-07-02 2025-03-18 Digital Voice Systems, Inc. Detecting and compensating for the presence of a speaker mask in a speech signal
US11990144B2 (en) 2021-07-28 2024-05-21 Digital Voice Systems, Inc. Reducing perceived effects of non-voice data in digital speech

Family Cites Families (94)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US488751A (en) * 1892-12-27 Device for moistening envelopes
US4797925A (en) 1986-09-26 1989-01-10 Bell Communications Research, Inc. Method for coding speech at low bit rates
JPH0738118B2 (ja) * 1987-02-04 1995-04-26 日本電気株式会社 マルチパルス符号化装置
IL84948A0 (en) * 1987-12-25 1988-06-30 D S P Group Israel Ltd Noise reduction system
US4817157A (en) 1988-01-07 1989-03-28 Motorola, Inc. Digital speech coder having improved vector excitation source
US5276765A (en) * 1988-03-11 1994-01-04 British Telecommunications Public Limited Company Voice activity detection
JP2621376B2 (ja) * 1988-06-30 1997-06-18 日本電気株式会社 マルチパルス符号化装置
JP2859634B2 (ja) 1989-04-19 1999-02-17 株式会社リコー 雑音除去装置
US5212764A (en) * 1989-04-19 1993-05-18 Ricoh Company, Ltd. Noise eliminating apparatus and speech recognition apparatus using the same
DE69029120T2 (de) * 1989-04-25 1997-04-30 Toshiba Kawasaki Kk Stimmenkodierer
US5060269A (en) 1989-05-18 1991-10-22 General Electric Company Hybrid switched multi-pulse/stochastic speech coding technique
US4963034A (en) * 1989-06-01 1990-10-16 Simon Fraser University Low-delay vector backward predictive coding of speech
US5204906A (en) 1990-02-13 1993-04-20 Matsushita Electric Industrial Co., Ltd. Voice signal processing device
CA2010830C (en) * 1990-02-23 1996-06-25 Jean-Pierre Adoul Dynamic codebook for efficient speech coding based on algebraic codes
US5701392A (en) * 1990-02-23 1997-12-23 Universite De Sherbrooke Depth-first algebraic-codebook search for fast coding of speech
EP0763812B1 (de) * 1990-05-28 2001-06-20 Matsushita Electric Industrial Co., Ltd. Vorrichtung zur Sprachsignalverarbeitung für die Bestimmung eines Sprachsignals in einem verrauschten Sprachsignal
US5293449A (en) * 1990-11-23 1994-03-08 Comsat Corporation Analysis-by-synthesis 2,4 kbps linear predictive speech codec
JP3077944B2 (ja) * 1990-11-28 2000-08-21 シャープ株式会社 信号再生装置
JP2836271B2 (ja) 1991-01-30 1998-12-14 日本電気株式会社 雑音除去装置
JPH04264597A (ja) * 1991-02-20 1992-09-21 Fujitsu Ltd 音声符号化装置および音声復号装置
FI98104C (fi) 1991-05-20 1997-04-10 Nokia Mobile Phones Ltd Menetelmä herätevektorin generoimiseksi ja digitaalinen puhekooderi
US5396576A (en) * 1991-05-22 1995-03-07 Nippon Telegraph And Telephone Corporation Speech coding and decoding methods using adaptive and random code books
US5187745A (en) * 1991-06-27 1993-02-16 Motorola, Inc. Efficient codebook search for CELP vocoders
US5233660A (en) * 1991-09-10 1993-08-03 At&T Bell Laboratories Method and apparatus for low-delay celp speech coding and decoding
US5390278A (en) * 1991-10-08 1995-02-14 Bell Canada Phoneme based speech recognition
US5371853A (en) * 1991-10-28 1994-12-06 University Of Maryland At College Park Method and system for CELP speech coding and codebook for use therewith
JPH0643892A (ja) 1992-02-18 1994-02-18 Matsushita Electric Ind Co Ltd 音声認識方法
JPH0612098A (ja) * 1992-03-16 1994-01-21 Sanyo Electric Co Ltd 音声符号化装置
JP3276977B2 (ja) * 1992-04-02 2002-04-22 シャープ株式会社 音声符号化装置
US5251263A (en) * 1992-05-22 1993-10-05 Andrea Electronics Corporation Adaptive noise cancellation and speech enhancement system and apparatus therefor
US5307405A (en) * 1992-09-25 1994-04-26 Qualcomm Incorporated Network echo canceller
JP2779886B2 (ja) * 1992-10-05 1998-07-23 日本電信電話株式会社 広帯域音声信号復元方法
JP3255189B2 (ja) * 1992-12-01 2002-02-12 日本電信電話株式会社 音声パラメータの符号化方法および復号方法
JP3099852B2 (ja) * 1993-01-07 2000-10-16 日本電信電話株式会社 励振信号の利得量子化方法
CN2150614Y (zh) 1993-03-17 1993-12-22 张宝源 磁盘退磁与磁性强度调整控制器
US5428561A (en) 1993-04-22 1995-06-27 Zilog, Inc. Efficient pseudorandom value generator
SG43128A1 (en) * 1993-06-10 1997-10-17 Oki Electric Ind Co Ltd Code excitation linear predictive (celp) encoder and decoder
GB2281680B (en) * 1993-08-27 1998-08-26 Motorola Inc A voice activity detector for an echo suppressor and an echo suppressor
JP2675981B2 (ja) 1993-09-20 1997-11-12 インターナショナル・ビジネス・マシーンズ・コーポレイション スヌープ・プッシュ・オペレーションを回避する方法
US5450449A (en) 1994-03-14 1995-09-12 At&T Ipm Corp. Linear prediction coefficient generation during frame erasure or packet loss
US6463406B1 (en) * 1994-03-25 2002-10-08 Texas Instruments Incorporated Fractional pitch method
JP2956473B2 (ja) * 1994-04-21 1999-10-04 日本電気株式会社 ベクトル量子化装置
US5651090A (en) * 1994-05-06 1997-07-22 Nippon Telegraph And Telephone Corporation Coding method and coder for coding input signals of plural channels using vector quantization, and decoding method and decoder therefor
JP3224955B2 (ja) * 1994-05-27 2001-11-05 株式会社東芝 ベクトル量子化装置およびベクトル量子化方法
JP3001375B2 (ja) 1994-06-15 2000-01-24 株式会社立松製作所 ドアヒンジ装置
JP3360423B2 (ja) 1994-06-21 2002-12-24 三菱電機株式会社 音声強調装置
JP3489748B2 (ja) * 1994-06-23 2004-01-26 株式会社東芝 音声符号化装置及び音声復号化装置
JP3418803B2 (ja) * 1994-07-04 2003-06-23 富士通株式会社 音声符号復号化装置
IT1266943B1 (it) 1994-09-29 1997-01-21 Cselt Centro Studi Lab Telecom Procedimento di sintesi vocale mediante concatenazione e parziale sovrapposizione di forme d'onda.
US5550543A (en) 1994-10-14 1996-08-27 Lucent Technologies Inc. Frame erasure or packet loss compensation method
JP3328080B2 (ja) 1994-11-22 2002-09-24 沖電気工業株式会社 コード励振線形予測復号器
JPH08160994A (ja) 1994-12-07 1996-06-21 Matsushita Electric Ind Co Ltd 雑音抑圧装置
US5751903A (en) * 1994-12-19 1998-05-12 Hughes Electronics Low rate multi-mode CELP codec that encodes line SPECTRAL frequencies utilizing an offset
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
JPH08279757A (ja) * 1995-04-06 1996-10-22 Casio Comput Co Ltd 階層式ベクトル量子化装置
JP3285185B2 (ja) 1995-06-16 2002-05-27 日本電信電話株式会社 音響信号符号化方法
US5561668A (en) * 1995-07-06 1996-10-01 Coherent Communications Systems Corp. Echo canceler with subband attenuation and noise injection control
US5949888A (en) * 1995-09-15 1999-09-07 Hughes Electronics Corporaton Comfort noise generator for echo cancelers
JP3196595B2 (ja) * 1995-09-27 2001-08-06 日本電気株式会社 音声符号化装置
JP3137176B2 (ja) * 1995-12-06 2001-02-19 日本電気株式会社 音声符号化装置
EP0875107B1 (de) * 1996-03-07 1999-09-01 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Codierverfahren zur einbringung eines nicht hörbaren datensignals in ein audiosignal, decodierverfahren, codierer und decodierer
JPH09281995A (ja) * 1996-04-12 1997-10-31 Nec Corp 信号符号化装置及び方法
JP3094908B2 (ja) * 1996-04-17 2000-10-03 日本電気株式会社 音声符号化装置
JP3335841B2 (ja) * 1996-05-27 2002-10-21 日本電気株式会社 信号符号化装置
US5742694A (en) * 1996-07-12 1998-04-21 Eatwell; Graham P. Noise reduction filter
US5806025A (en) * 1996-08-07 1998-09-08 U S West, Inc. Method and system for adaptive filtering of speech signals using signal-to-noise ratio to choose subband filter bank
US5963899A (en) * 1996-08-07 1999-10-05 U S West, Inc. Method and system for region based filtering of speech
JP3174733B2 (ja) 1996-08-22 2001-06-11 松下電器産業株式会社 Ｃｅｌｐ型音声復号化装置、およびｃｅｌｐ型音声復号化方法
CA2213909C (en) * 1996-08-26 2002-01-22 Nec Corporation High quality speech coder at low bit rates
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
EP1071079B1 (de) 1996-11-07 2002-06-26 Matsushita Electric Industrial Co., Ltd. Verfahren zur Erzeugung eines Vektorquantisierungs-Codebuchs
CA2242610C (en) 1996-11-11 2003-01-28 Matsushita Electric Industrial Co., Ltd. Sound reproducing speed converter
JPH10149199A (ja) * 1996-11-19 1998-06-02 Sony Corp 音声符号化方法、音声復号化方法、音声符号化装置、音声復号化装置、電話装置、ピッチ変換方法及び媒体
US6148282A (en) * 1997-01-02 2000-11-14 Texas Instruments Incorporated Multimodal code-excited linear prediction (CELP) coder and method using peakiness measure
US5940429A (en) * 1997-02-25 1999-08-17 Solana Technology Development Corporation Cross-term compensation power adjustment of embedded auxiliary data in a primary data signal
JPH10247098A (ja) * 1997-03-04 1998-09-14 Mitsubishi Electric Corp 可変レート音声符号化方法、可変レート音声復号化方法
US5903866A (en) * 1997-03-10 1999-05-11 Lucent Technologies Inc. Waveform interpolation speech coding using splines
US5970444A (en) * 1997-03-13 1999-10-19 Nippon Telegraph And Telephone Corporation Speech coding method
JPH10260692A (ja) * 1997-03-18 1998-09-29 Toshiba Corp 音声の認識合成符号化／復号化方法及び音声符号化／復号化システム
JPH10318421A (ja) * 1997-05-23 1998-12-04 Sumitomo Electric Ind Ltd 比例圧力制御弁
KR100585405B1 (ko) 1997-06-13 2006-06-01 다카라 바이오 가부시키가이샤 하이드록시사이클로펜타논
US6073092A (en) * 1997-06-26 2000-06-06 Telogy Networks, Inc. Method for speech coding based on a code excited linear prediction (CELP) model
WO1999010719A1 (en) * 1997-08-29 1999-03-04 The Regents Of The University Of California Method and apparatus for hybrid coding of speech at 4kbps
US6029125A (en) 1997-09-02 2000-02-22 Telefonaktiebolaget L M Ericsson, (Publ) Reducing sparseness in coded speech signals
US6058359A (en) * 1998-03-04 2000-05-02 Telefonaktiebolaget L M Ericsson Speech coding including soft adaptability feature
JP3922482B2 (ja) * 1997-10-14 2007-05-30 ソニー株式会社 情報処理装置および方法
EP1746583B1 (de) * 1997-10-22 2008-09-17 Matsushita Electric Industrial Co., Ltd. Tonkodierer und Tondekodierer
US6163608A (en) * 1998-01-09 2000-12-19 Ericsson Inc. Methods and apparatus for providing comfort noise in communications systems
US6023674A (en) * 1998-01-23 2000-02-08 Telefonaktiebolaget L M Ericsson Non-parametric voice activity detection
US6301556B1 (en) * 1998-03-04 2001-10-09 Telefonaktiebolaget L M. Ericsson (Publ) Reducing sparseness in coded speech signals
US6415252B1 (en) * 1998-05-28 2002-07-02 Motorola, Inc. Method and apparatus for coding and decoding speech
JP3180786B2 (ja) * 1998-11-27 2001-06-25 日本電気株式会社 音声符号化方法及び音声符号化装置
US6311154B1 (en) * 1998-12-30 2001-10-30 Nokia Mobile Phones Limited Adaptive windows for analysis-by-synthesis CELP-type speech coding
JP4245300B2 (ja) 2002-04-02 2009-03-25 旭化成ケミカルズ株式会社 生分解性ポリエステル延伸成形体の製造方法

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