DE69913724T2 - Vorrichtung zur rauschmaskierung und verfahren zur effizienten kodierung von breitbandsignalen - Google Patents

Vorrichtung zur rauschmaskierung und verfahren zur effizienten kodierung von breitbandsignalen Download PDF

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Publication number
DE69913724T2
DE69913724T2 DE69913724T DE69913724T DE69913724T2 DE 69913724 T2 DE69913724 T2 DE 69913724T2 DE 69913724 T DE69913724 T DE 69913724T DE 69913724 T DE69913724 T DE 69913724T DE 69913724 T2 DE69913724 T2 DE 69913724T2
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Prior art keywords
pitch
broadband signals
noise masking
signal
efficiently coding
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DE69913724T
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DE69913724D1 (de
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Bruno Bessette
Redwan Salami
Roch Lefebvre
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VoiceAge Corp
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VoiceAge Corp
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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
DE69913724T 1998-10-27 1999-10-27 Vorrichtung zur rauschmaskierung und verfahren zur effizienten kodierung von breitbandsignalen Expired - Lifetime DE69913724T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002252170A CA2252170A1 (en) 1998-10-27 1998-10-27 A method and device for high quality coding of wideband speech and audio signals
PCT/CA1999/001010 WO2000025304A1 (en) 1998-10-27 1999-10-27 Perceptual weighting device and method for efficient coding of wideband signals

Publications (2)

Publication Number Publication Date
DE69913724D1 DE69913724D1 (de) 2004-01-29
DE69913724T2 true DE69913724T2 (de) 2004-10-07

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

Family Applications Before (2)

Application Number Title Priority Date Filing Date
DE69910240T Expired - Lifetime DE69910240T2 (de) 1998-10-27 1999-10-27 Vorrichtung und verfahren zur wiederherstellung des hochfrequenzanteils eines überabgetasteten synthetisierten breitbandsignals
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 After (1)

Application Number Title Priority Date Filing Date
DE69910058T Expired - Lifetime DE69910058T2 (de) 1998-10-27 1999-10-27 Verbesserung der periodizität eines breitbandsignals

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US (8) US7151802B1 (de)
EP (4) EP1125286B1 (de)
JP (4) JP3869211B2 (de)
KR (3) KR100417635B1 (de)
CN (4) CN1165892C (de)
AT (4) ATE246836T1 (de)
AU (4) AU752229B2 (de)
BR (2) BR9914889B1 (de)
CA (5) CA2252170A1 (de)
DE (4) DE69910240T2 (de)
DK (4) DK1125285T3 (de)
ES (4) ES2205892T3 (de)
HK (1) HK1043234B (de)
MX (2) MXPA01004181A (de)
NO (4) NO318627B1 (de)
NZ (1) NZ511163A (de)
PT (4) PT1125286E (de)
RU (2) RU2219507C2 (de)
WO (4) WO2000025298A1 (de)
ZA (2) ZA200103367B (de)

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