HK1006874A1 - A method of and system for coding analogue signals - Google Patents

A method of and system for coding analogue signals

Info

Publication number
HK1006874A1
HK1006874A1 HK98105174A HK98105174A HK1006874A1 HK 1006874 A1 HK1006874 A1 HK 1006874A1 HK 98105174 A HK98105174 A HK 98105174A HK 98105174 A HK98105174 A HK 98105174A HK 1006874 A1 HK1006874 A1 HK 1006874A1
Authority
HK
Hong Kong
Prior art keywords
analogue signals
coding
coding analogue
signals
analogue
Prior art date
Application number
HK98105174A
Other languages
English (en)
Inventor
Patrick William Elliot
Timothy James Moulsley
Original Assignee
Philips Electronics Uk Ltd
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
Priority claimed from GB9021103A external-priority patent/GB2248372A/en
Priority claimed from GB919112143A external-priority patent/GB9112143D0/en
Application filed by Philips Electronics Uk Ltd filed Critical Philips Electronics Uk Ltd
Publication of HK1006874A1 publication Critical patent/HK1006874A1/xx

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00Image coding
    • G06T9/008Vector quantisation
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/04Speech 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
    • G10L19/08Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/083Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/04Speech 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
    • G10L19/08Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12Determination 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
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L19/04Speech 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
    • G10L19/16Vocoder architecture
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L2019/0001Codebooks
    • G10L2019/0004Design or structure of the codebook
    • G10L2019/0005Multi-stage vector quantisation
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L2019/0001Codebooks
    • G10L2019/0007Codebook element generation
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00Speech 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
    • G10L2019/0001Codebooks
    • G10L2019/0013Codebook search algorithms
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/24Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being the cepstrum
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10LSPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/27Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the analysis technique

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Computational Linguistics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Selective Calling Equipment (AREA)
  • Error Detection And Correction (AREA)
HK98105174A 1990-09-28 1998-06-11 A method of and system for coding analogue signals HK1006874A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9021103A GB2248372A (en) 1990-09-28 1990-09-28 Coding/decoding analogue signals using master and two slave codebooks
GB919112143A GB9112143D0 (en) 1991-06-05 1991-06-05 A method of,and a system for,coding analogue signals
PCT/NL1991/000200 WO1992006470A1 (en) 1990-09-28 1991-09-25 A method of, and system for, coding analogue signals

Publications (1)

Publication Number Publication Date
HK1006874A1 true HK1006874A1 (en) 1999-03-19

Family

ID=26297721

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98105174A HK1006874A1 (en) 1990-09-28 1998-06-11 A method of and system for coding analogue signals

Country Status (14)

Country Link
US (1) US5451951A (ko)
EP (1) EP0550657B1 (ko)
JP (1) JP3206661B2 (ko)
KR (1) KR100195575B1 (ko)
CN (1) CN1036886C (ko)
AU (1) AU653969B2 (ko)
BR (1) BR9106932A (ko)
CA (1) CA2091754C (ko)
DE (1) DE69121411T2 (ko)
DK (1) DK0550657T3 (ko)
ES (1) ES2093110T3 (ko)
HK (1) HK1006874A1 (ko)
SG (1) SG43974A1 (ko)
WO (1) WO1992006470A1 (ko)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5621852A (en) 1993-12-14 1997-04-15 Interdigital Technology Corporation Efficient codebook structure for code excited linear prediction coding
CN1099663C (zh) * 1994-03-11 2003-01-22 皇家菲利浦电子有限公司 准周期信号的传输系统
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
US5652585A (en) * 1995-04-05 1997-07-29 Crystal Semiconductor Corp. Multiple function analog-to-digital converter with multiple serial outputs
US5822724A (en) * 1995-06-14 1998-10-13 Nahumi; Dror Optimized pulse location in codebook searching techniques for speech processing
JP3137176B2 (ja) * 1995-12-06 2001-02-19 日本電気株式会社 音声符号化装置
BR9702072B1 (pt) * 1996-02-15 2009-01-13 sistema de transmissço, transmissor para transmitir um sinal de entrada, codificador, e, processos para transmitir um sinal de entrada atravÉs de um canal de transmissço e para codificar um sinal de entrada.
TW317051B (ko) * 1996-02-15 1997-10-01 Philips Electronics Nv
KR100389895B1 (ko) * 1996-05-25 2003-11-28 삼성전자주식회사 음성 부호화 및 복호화방법 및 그 장치
JP3707153B2 (ja) * 1996-09-24 2005-10-19 ソニー株式会社 ベクトル量子化方法、音声符号化方法及び装置
KR100198476B1 (ko) * 1997-04-23 1999-06-15 윤종용 노이즈에 견고한 스펙트럼 포락선 양자화기 및 양자화 방법
US6141639A (en) * 1998-06-05 2000-10-31 Conexant Systems, Inc. Method and apparatus for coding of signals containing speech and background noise
US6480822B2 (en) * 1998-08-24 2002-11-12 Conexant Systems, Inc. Low complexity random codebook structure
US6493665B1 (en) * 1998-08-24 2002-12-10 Conexant Systems, Inc. Speech classification and parameter weighting used in codebook search
US6823303B1 (en) * 1998-08-24 2004-11-23 Conexant Systems, Inc. Speech encoder using voice activity detection in coding noise
US6330531B1 (en) * 1998-08-24 2001-12-11 Conexant Systems, Inc. Comb codebook structure
DE19915009C2 (de) * 1999-04-01 2001-09-27 Siemens Ag Verfahren, Anordnung und ein computerlesbares Speichermedium zur rechnergestützen Ermittlung einer Zustandsgröße eines technischen Systems
US6850884B2 (en) * 2000-09-15 2005-02-01 Mindspeed Technologies, Inc. Selection of coding parameters based on spectral content of a speech signal
US6842733B1 (en) 2000-09-15 2005-01-11 Mindspeed Technologies, Inc. Signal processing system for filtering spectral content of a signal for speech coding
JP3404016B2 (ja) 2000-12-26 2003-05-06 三菱電機株式会社 音声符号化装置及び音声符号化方法
US7457746B2 (en) 2006-03-20 2008-11-25 Mindspeed Technologies, Inc. Pitch prediction for packet loss concealment
US9418671B2 (en) * 2013-08-15 2016-08-16 Huawei Technologies Co., Ltd. Adaptive high-pass post-filter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2065946B (en) * 1979-11-21 1983-08-24 Redland Automation Ltd Vehicle detiction installation
US4899385A (en) * 1987-06-26 1990-02-06 American Telephone And Telegraph Company Code excited linear predictive vocoder
JPH0225898A (ja) * 1988-07-15 1990-01-29 Toshiba Corp 音声認識装置
DE3853161T2 (de) * 1988-10-19 1995-08-17 Ibm Vektorquantisierungscodierer.
US4963034A (en) * 1989-06-01 1990-10-16 Simon Fraser University Low-delay vector backward predictive coding of speech
GB2235354A (en) * 1989-08-16 1991-02-27 Philips Electronic Associated Speech coding/encoding using celp

Also Published As

Publication number Publication date
CA2091754A1 (en) 1992-03-29
CN1036886C (zh) 1997-12-31
CN1060378A (zh) 1992-04-15
AU653969B2 (en) 1994-10-20
SG43974A1 (en) 1997-11-14
EP0550657B1 (en) 1996-08-14
DK0550657T3 (da) 1997-01-13
JPH06501113A (ja) 1994-01-27
AU8856791A (en) 1992-04-28
DE69121411T2 (de) 1997-02-20
US5451951A (en) 1995-09-19
ES2093110T3 (es) 1996-12-16
WO1992006470A1 (en) 1992-04-16
CA2091754C (en) 2002-01-29
JP3206661B2 (ja) 2001-09-10
EP0550657A1 (en) 1993-07-14
DE69121411D1 (de) 1996-09-19
KR100195575B1 (en) 1999-06-15
BR9106932A (pt) 1993-08-03

Similar Documents

Publication Publication Date Title
SG43974A1 (en) A method of and system for coding analogue signals
EP0739143A3 (en) Method and device for encoding a video signal
IL109566A0 (en) A method and system to enhance medical signals
GB9203066D0 (en) Method and system of production control
EP0483039A3 (en) Method and system for version control of engineering changes
SG52259A1 (en) A method of presulfurizing a catalyst
EP0545718A3 (en) Method of making bone-implants
GB2256273B (en) Method of and system for calibrating hydrophones
HK1001473A1 (en) System and method for encoding objects
EP0533196A3 (en) Version-up method and system
IL101355A0 (en) Apparatus and method for encoding signals
IL82686A (en) Method and apparatus for deriving the direction of a received signal
GB2240896B (en) Methods of and apparatus for coding television signals
GB9120618D0 (en) A method of moulding a component and a component made by such a method
GB2250557B (en) Hose-to-pipe connection and method of making such a connection
GB9021103D0 (en) A method of,and system for,coding analogue signals
GB2394222B (en) A method of making a polynitramine
GB9112143D0 (en) A method of,and a system for,coding analogue signals
GB9110376D0 (en) Method of sampling
PL289716A1 (en) Method of obtaining buprenophine
GB2274425B (en) A method of moulding a component and a component made by such a method
PL284784A1 (en) Method of and system for converting a measuring signal
GB9311943D0 (en) A method of processing a digital detail signal
PL288866A1 (en) Method of obtaining 2-nitro-5-phenylthioanilin
GB9111864D0 (en) A method of connection

Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)