TW326070B - The estimation method of the impulse gain for coding vocoder - Google Patents

The estimation method of the impulse gain for coding vocoder

Info

Publication number
TW326070B
TW326070B TW085115665A TW85115665A TW326070B TW 326070 B TW326070 B TW 326070B TW 085115665 A TW085115665 A TW 085115665A TW 85115665 A TW85115665 A TW 85115665A TW 326070 B TW326070 B TW 326070B
Authority
TW
Taiwan
Prior art keywords
impulse
gain
estimation method
decision unit
unit
Prior art date
Application number
TW085115665A
Other languages
English (en)
Inventor
Jinn-Deng Lin
Shinn-An Lin
Original Assignee
Holtek Microelectronics 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 Holtek Microelectronics Inc filed Critical Holtek Microelectronics Inc
Priority to TW085115665A priority Critical patent/TW326070B/zh
Priority to US08/851,223 priority patent/US5953697A/en
Priority to DE19722705A priority patent/DE19722705A1/de
Application granted granted Critical
Publication of TW326070B publication Critical patent/TW326070B/zh

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
    • G10L19/083—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain
    • 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
    • G10L2019/0012—Smoothing of parameters of the decoder interpolation

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)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Telephonic Communication Services (AREA)
TW085115665A 1996-12-19 1996-12-19 The estimation method of the impulse gain for coding vocoder TW326070B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
TW085115665A TW326070B (en) 1996-12-19 1996-12-19 The estimation method of the impulse gain for coding vocoder
US08/851,223 US5953697A (en) 1996-12-19 1997-05-05 Gain estimation scheme for LPC vocoders with a shape index based on signal envelopes
DE19722705A DE19722705A1 (de) 1996-12-19 1997-05-30 Verfahren zur Abschätzung der Verstärkung zur Sprachkodierung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW085115665A TW326070B (en) 1996-12-19 1996-12-19 The estimation method of the impulse gain for coding vocoder

Publications (1)

Publication Number Publication Date
TW326070B true TW326070B (en) 1998-02-01

Family

ID=21625621

Family Applications (1)

Application Number Title Priority Date Filing Date
TW085115665A TW326070B (en) 1996-12-19 1996-12-19 The estimation method of the impulse gain for coding vocoder

Country Status (3)

Country Link
US (1) US5953697A (zh)
DE (1) DE19722705A1 (zh)
TW (1) TW326070B (zh)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6993480B1 (en) * 1998-11-03 2006-01-31 Srs Labs, Inc. Voice intelligibility enhancement system
US7092881B1 (en) * 1999-07-26 2006-08-15 Lucent Technologies Inc. Parametric speech codec for representing synthetic speech in the presence of background noise
CA2290037A1 (en) * 1999-11-18 2001-05-18 Voiceage Corporation Gain-smoothing amplifier device and method in codecs for wideband speech and audio signals
US6539349B1 (en) * 2000-02-15 2003-03-25 Lucent Technologies Inc. Constraining pulse positions in CELP vocoding
DE10026904A1 (de) 2000-04-28 2002-01-03 Deutsche Telekom Ag Verfahren zur Berechnung des die Lautstärke mitbestimmenden Verstärkungsfaktors für ein codiert übertragenes Sprachsignal
DE10031832C2 (de) * 2000-06-30 2003-04-30 Cochlear Ltd Hörgerät zur Rehabilitation einer Hörstörung
US20030120484A1 (en) * 2001-06-12 2003-06-26 David Wong Method and system for generating colored comfort noise in the absence of silence insertion description packets
US7512535B2 (en) * 2001-10-03 2009-03-31 Broadcom Corporation Adaptive postfiltering methods and systems for decoding speech
US20030135374A1 (en) * 2002-01-16 2003-07-17 Hardwick John C. Speech synthesizer
US20030187663A1 (en) 2002-03-28 2003-10-02 Truman Michael Mead Broadband frequency translation for high frequency regeneration
US7860256B1 (en) * 2004-04-09 2010-12-28 Apple Inc. Artificial-reverberation generating device
BRPI0510303A (pt) * 2004-04-27 2007-10-02 Matsushita Electric Ind Co Ltd dispositivo de codificação escalável, dispositivo de decodificação escalável, e seu método
EP3118849B1 (en) * 2004-05-19 2020-01-01 Fraunhofer Gesellschaft zur Förderung der Angewand Encoding device, decoding device, and method thereof
WO2008108721A1 (en) 2007-03-05 2008-09-12 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for controlling smoothing of stationary background noise
EP2945158B1 (en) 2007-03-05 2019-12-25 Telefonaktiebolaget LM Ericsson (publ) Method and arrangement for smoothing of stationary background noise
CN101207665B (zh) * 2007-11-05 2010-12-08 华为技术有限公司 一种衰减因子的获取方法
CN100550712C (zh) * 2007-11-05 2009-10-14 华为技术有限公司 一种信号处理方法和处理装置
DE102008042579B4 (de) * 2008-10-02 2020-07-23 Robert Bosch Gmbh Verfahren zur Fehlerverdeckung bei fehlerhafter Übertragung von Sprachdaten
EP2246845A1 (en) * 2009-04-21 2010-11-03 Siemens Medical Instruments Pte. Ltd. Method and acoustic signal processing device for estimating linear predictive coding coefficients
US9626982B2 (en) 2011-02-15 2017-04-18 Voiceage Corporation Device and method for quantizing the gains of the adaptive and fixed contributions of the excitation in a CELP codec
AU2012218778B2 (en) * 2011-02-15 2016-10-20 Voiceage Evs Llc Device and method for quantizing the gains of the adaptive and fixed contributions of the excitation in a celp codec
PL2791937T3 (pl) 2011-11-02 2016-11-30 Wytworzenie rozszerzenia pasma wysokiego sygnału dźwiękowego o poszerzonym paśmie

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0332228A (ja) * 1989-06-29 1991-02-12 Fujitsu Ltd ゲイン―シェイプ・ベクトル量子化方式
US5664055A (en) * 1995-06-07 1997-09-02 Lucent Technologies Inc. CS-ACELP speech compression system with adaptive pitch prediction filter gain based on a measure of periodicity

Also Published As

Publication number Publication date
DE19722705A1 (de) 1998-07-02
US5953697A (en) 1999-09-14

Similar Documents

Publication Publication Date Title
TW326070B (en) The estimation method of the impulse gain for coding vocoder
Goldberg A practical handbook of speech coders
EP0751493A3 (en) Method and apparatus for reproducing speech signals and method for transmitting same
JPS6046440B2 (ja) 音声処理方法とその装置
WO1985004276A1 (en) Multipulse lpc speech processing arrangement
JPH06222798A (ja) 音声信号を効率的に符号化するための方法及びこの方法を用いる符号器
JP2002108400A (ja) 入力信号をボコーディングする方法および装置およびそのためのコンピュータ読み出し可能信号を有する媒体を含む製造物品
EP1103953B1 (en) Method for concealing erased speech frames
JP3451998B2 (ja) 無音声符号化を含む音声符号化・復号装置、復号化方法及びプログラムを記録した記録媒体
JP3515216B2 (ja) 音声符号化装置
JP2853170B2 (ja) 音声符号化復号化方式
EP1892701A1 (en) Injection high frequency noise into pulse excitation for low bit rate celp
JP3475958B2 (ja) 無音声符号化を含む音声符号化・復号装置、復号化方法及びプログラムを記録した記録媒体
JPH0411040B2 (zh)
JPS62102294A (ja) 音声符号化方式
JP3166797B2 (ja) 音声符号化法及び音声復号化法並びに音声符復号化装置
JP2853126B2 (ja) マルチパルス符号化装置
JP2898641B2 (ja) 音声符号化装置
JPH05224698A (ja) ピッチサイクル波形を平滑化する方法及び装置
GB2322778A (en) Noise output for a decoded speech signal
Baghbadrani Codebook excited linear prediction speech coding
GB2266213A (en) Digital signal coding
Tang et al. Fixed bit-rate PWI speech coding with variable frame length
WO2001009880A1 (en) Multimode vselp speech coder
JPH05346798A (ja) 音声符号化装置