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BR9702073A - Sistema de transmissão transmissor para transmitir um sinal de entrada codificador e processos de transmissão de um sinal de entrada de decodificação e de codificação - Google Patents

Sistema de transmissão transmissor para transmitir um sinal de entrada codificador e processos de transmissão de um sinal de entrada de decodificação e de codificação

Info

Publication number
BR9702073A
BR9702073A BR9702073A BR9702073A BR9702073A BR 9702073 A BR9702073 A BR 9702073A BR 9702073 A BR9702073 A BR 9702073A BR 9702073 A BR9702073 A BR 9702073A BR 9702073 A BR9702073 A BR 9702073A
Authority
BR
Brazil
Prior art keywords
transmitting
input signal
encoding input
decoding
processes
Prior art date
Application number
BR9702073A
Other languages
English (en)
Inventor
Fransiscus Marinus Jozeph Bont
Friedhelm Wuppermann
Robert Johannes Sjuijter
Eric Kathmann
Original Assignee
Philips Electronics Nv
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 Philips Electronics Nv filed Critical Philips Electronics Nv
Publication of BR9702073A publication Critical patent/BR9702073A/pt

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
    • G10L13/00—Speech synthesis; Text to speech systems
    • 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
    • G10L2019/0013—Codebook search algorithms

Landscapes

  • Engineering & Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
BR9702073A 1996-02-15 1997-01-31 Sistema de transmissão transmissor para transmitir um sinal de entrada codificador e processos de transmissão de um sinal de entrada de decodificação e de codificação BR9702073A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP96200369 1996-02-15
PCT/IB1997/000067 WO1997030438A1 (en) 1996-02-15 1997-01-31 Celp speech coder with reduced complexity synthesis filter

Publications (1)

Publication Number Publication Date
BR9702073A true BR9702073A (pt) 1998-05-26

Family

ID=8223671

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9702073A BR9702073A (pt) 1996-02-15 1997-01-31 Sistema de transmissão transmissor para transmitir um sinal de entrada codificador e processos de transmissão de um sinal de entrada de decodificação e de codificação

Country Status (8)

Country Link
US (1) US6014619A (pt)
EP (1) EP0843875A1 (pt)
JP (1) JPH11504731A (pt)
KR (1) KR19990007817A (pt)
CN (1) CN1132156C (pt)
BR (1) BR9702073A (pt)
TW (1) TW307960B (pt)
WO (1) WO1997030438A1 (pt)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69737012T2 (de) * 1996-08-02 2007-06-06 Matsushita Electric Industrial Co., Ltd., Kadoma Sprachkodierer, sprachdekodierer und aufzeichnungsmedium dafür
TW439368B (en) * 1998-05-14 2001-06-07 Koninkl Philips Electronics Nv Transmission system using an improved signal encoder and decoder
US6732070B1 (en) * 2000-02-16 2004-05-04 Nokia Mobile Phones, Ltd. Wideband speech codec using a higher sampling rate in analysis and synthesis filtering than in excitation searching
US6789059B2 (en) * 2001-06-06 2004-09-07 Qualcomm Incorporated Reducing memory requirements of a codebook vector search
US8605911B2 (en) 2001-07-10 2013-12-10 Dolby International Ab Efficient and scalable parametric stereo coding for low bitrate audio coding applications
SE0202159D0 (sv) 2001-07-10 2002-07-09 Coding Technologies Sweden Ab Efficientand scalable parametric stereo coding for low bitrate applications
EP1423847B1 (en) 2001-11-29 2005-02-02 Coding Technologies AB Reconstruction of high frequency components
SE0202770D0 (sv) 2002-09-18 2002-09-18 Coding Technologies Sweden Ab Method for reduction of aliasing introduces by spectral envelope adjustment in real-valued filterbanks
US7054807B2 (en) * 2002-11-08 2006-05-30 Motorola, Inc. Optimizing encoder for efficiently determining analysis-by-synthesis codebook-related parameters
CA2602804C (en) 2005-04-01 2013-12-24 Qualcomm Incorporated Systems, methods, and apparatus for highband burst suppression
PL1875463T3 (pl) 2005-04-22 2019-03-29 Qualcomm Incorporated Układy, sposoby i urządzenie do wygładzania współczynnika wzmocnienia
US8417185B2 (en) * 2005-12-16 2013-04-09 Vocollect, Inc. Wireless headset and method for robust voice data communication
US7885419B2 (en) * 2006-02-06 2011-02-08 Vocollect, Inc. Headset terminal with speech functionality
US7773767B2 (en) 2006-02-06 2010-08-10 Vocollect, Inc. Headset terminal with rear stability strap
USD605629S1 (en) 2008-09-29 2009-12-08 Vocollect, Inc. Headset
US8160287B2 (en) 2009-05-22 2012-04-17 Vocollect, Inc. Headset with adjustable headband
US8438659B2 (en) 2009-11-05 2013-05-07 Vocollect, Inc. Portable computing device and headset interface
CN116429160A (zh) * 2023-02-07 2023-07-14 北京奕斯伟计算技术股份有限公司 一种用于追踪编码器测试的控制方法及装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5384891A (en) * 1988-09-28 1995-01-24 Hitachi, Ltd. Vector quantizing apparatus and speech analysis-synthesis system using the apparatus
US5671327A (en) * 1991-10-21 1997-09-23 Kabushiki Kaisha Toshiba Speech encoding apparatus utilizing stored code data
US5327520A (en) * 1992-06-04 1994-07-05 At&T Bell Laboratories Method of use of voice message coder/decoder
AU668817B2 (en) * 1993-03-26 1996-05-16 Blackberry Limited Vector quantizer method and apparatus
US5717823A (en) * 1994-04-14 1998-02-10 Lucent Technologies Inc. Speech-rate modification for linear-prediction based analysis-by-synthesis speech coders
US5602961A (en) * 1994-05-31 1997-02-11 Alaris, Inc. Method and apparatus for speech compression using multi-mode code excited linear predictive coding
JP3183074B2 (ja) * 1994-06-14 2001-07-03 松下電器産業株式会社 音声符号化装置
US5732389A (en) * 1995-06-07 1998-03-24 Lucent Technologies Inc. Voiced/unvoiced classification of speech for excitation codebook selection in celp speech decoding during frame erasures

Also Published As

Publication number Publication date
US6014619A (en) 2000-01-11
WO1997030438A1 (en) 1997-08-21
CN1188557A (zh) 1998-07-22
CN1132156C (zh) 2003-12-24
EP0843875A1 (en) 1998-05-27
TW307960B (en) 1997-06-11
KR19990007817A (ko) 1999-01-25
JPH11504731A (ja) 1999-04-27

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Legal Events

Date Code Title Description
TC Change of name
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements
B15K Others concerning applications: alteration of classification

Free format text: PROCEDIMENTO AUTOMATICO DE RECLASSIFICACAO. A CLASSIFICACAO IPC ANTERIOR ERA G10L 9/14.

Ipc: G10L 19/12 (2013.01)

Ipc: G10L 19/12 (2013.01)