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DE69910239D1 - Verfahren und vorrichtung zur adaptiven bandbreitenabhängigen grundfrequenzsuche für die kodierung breitbandiger signale - Google Patents

Verfahren und vorrichtung zur adaptiven bandbreitenabhängigen grundfrequenzsuche für die kodierung breitbandiger signale

Info

Publication number
DE69910239D1
DE69910239D1 DE69910239T DE69910239T DE69910239D1 DE 69910239 D1 DE69910239 D1 DE 69910239D1 DE 69910239 T DE69910239 T DE 69910239T DE 69910239 T DE69910239 T DE 69910239T DE 69910239 D1 DE69910239 D1 DE 69910239D1
Authority
DE
Germany
Prior art keywords
pitch
basic frequency
frequency search
broadband signals
adaptive bandwidth
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
DE69910239T
Other languages
English (en)
Other versions
DE69910239T2 (de
Inventor
Bruno Bessette
Redwan Salami
Roch Lefebvre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VoiceAge Corp
Original Assignee
VoiceAge Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4162966&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69910239(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by VoiceAge Corp filed Critical VoiceAge Corp
Publication of DE69910239D1 publication Critical patent/DE69910239D1/de
Application granted granted Critical
Publication of DE69910239T2 publication Critical patent/DE69910239T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/90—Pitch determination of speech signals
    • 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
    • G10L19/26—Pre-filtering or post-filtering
    • 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
    • G10L2019/0011—Long term prediction filters, i.e. pitch estimation

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)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Error Detection And Correction (AREA)
  • Dc Digital Transmission (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Television Systems (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Networks Using Active Elements (AREA)
  • Package Frames And Binding Bands (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Image Processing (AREA)
  • Inorganic Insulating Materials (AREA)
  • Parts Printed On Printed Circuit Boards (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Optical Communication System (AREA)
DE69910239T 1998-10-27 1999-10-27 Verfahren und vorrichtung zur adaptiven bandbreitenabhängigen grundfrequenzsuche für die kodierung breitbandiger signale Expired - Lifetime DE69910239T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA2252170 1998-10-27
CA002252170A CA2252170A1 (en) 1998-10-27 1998-10-27 A method and device for high quality coding of wideband speech and audio signals
PCT/CA1999/001008 WO2000025298A1 (en) 1998-10-27 1999-10-27 A method and device for adaptive bandwidth pitch search in coding wideband signals

Publications (2)

Publication Number Publication Date
DE69910239D1 true DE69910239D1 (de) 2003-09-11
DE69910239T2 DE69910239T2 (de) 2004-06-24

Family

ID=4162966

Family Applications (4)

Application Number Title Priority Date Filing Date
DE69910058T Expired - Lifetime DE69910058T2 (de) 1998-10-27 1999-10-27 Verbesserung der periodizität eines breitbandsignals
DE69910240T Expired - Lifetime DE69910240T2 (de) 1998-10-27 1999-10-27 Vorrichtung und verfahren zur wiederherstellung des hochfrequenzanteils eines überabgetasteten synthetisierten breitbandsignals
DE69913724T Expired - Lifetime DE69913724T2 (de) 1998-10-27 1999-10-27 Vorrichtung zur rauschmaskierung und verfahren zur effizienten kodierung von breitbandsignalen
DE69910239T Expired - Lifetime DE69910239T2 (de) 1998-10-27 1999-10-27 Verfahren und vorrichtung zur adaptiven bandbreitenabhängigen grundfrequenzsuche für die kodierung breitbandiger signale

Family Applications Before (3)

Application Number Title Priority Date Filing Date
DE69910058T Expired - Lifetime DE69910058T2 (de) 1998-10-27 1999-10-27 Verbesserung der periodizität eines breitbandsignals
DE69910240T Expired - Lifetime DE69910240T2 (de) 1998-10-27 1999-10-27 Vorrichtung und verfahren zur wiederherstellung des hochfrequenzanteils eines überabgetasteten synthetisierten breitbandsignals
DE69913724T Expired - Lifetime DE69913724T2 (de) 1998-10-27 1999-10-27 Vorrichtung zur rauschmaskierung und verfahren zur effizienten kodierung von breitbandsignalen

Country Status (20)

Country Link
US (8) US6795805B1 (de)
EP (4) EP1125285B1 (de)
JP (4) JP3869211B2 (de)
KR (3) KR100417634B1 (de)
CN (4) CN1172292C (de)
AT (4) ATE246836T1 (de)
AU (4) AU763471B2 (de)
BR (2) BR9914890B1 (de)
CA (5) CA2252170A1 (de)
DE (4) DE69910058T2 (de)
DK (4) DK1125276T3 (de)
ES (4) ES2212642T3 (de)
HK (1) HK1043234B (de)
MX (2) MXPA01004181A (de)
NO (4) NO318627B1 (de)
NZ (1) NZ511163A (de)
PT (4) PT1125276E (de)
RU (2) RU2217718C2 (de)
WO (4) WO2000025304A1 (de)
ZA (2) ZA200103366B (de)

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* Cited by examiner, † Cited by third party
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