DK2805325T3 - Indretninger, fremgangsmåder og computer-programprodukt til redundant rammekodning og afkodning - Google Patents

Indretninger, fremgangsmåder og computer-programprodukt til redundant rammekodning og afkodning Download PDF

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DK2805325T3
DK2805325T3 DK13702313.1T DK13702313T DK2805325T3 DK 2805325 T3 DK2805325 T3 DK 2805325T3 DK 13702313 T DK13702313 T DK 13702313T DK 2805325 T3 DK2805325 T3 DK 2805325T3
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Denmark
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frame
redundant version
electronic device
parameters
fixed codebook
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DK13702313.1T
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Vivek Rajendran
Venkatesh Krishnan
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Qualcomm Inc
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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
    • 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
    • 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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
    • 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
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
    • G10L19/107—Sparse pulse excitation, e.g. by using algebraic codebook
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
    • G10L19/113—Regular pulse excitation
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/09—Long term prediction, i.e. removing periodical redundancies, e.g. by using adaptive codebook or pitch predictor
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/10—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a multipulse excitation
    • 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
    • G10L19/08—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 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
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/21—Speech 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 power information

Claims (15)

1. Fremgangsmåde til redundant rammekodning med en elektronisk indretning, omfattende: bestemme en adaptiv kodebogenergi og en fast kodebogenergi baseret på en ramme fra et audiosignal; kodning af en redundant version af rammen baseret på den adaptive kodebogenergi og den faste kodebogenergi; og sende en efterfølgende ramme der omfatter den redundante version af rammen.
2. Fremgangsmåden ifølge krav 1, hvor kodning af redundant-versionen af rammen baseret på den adaptive kodebogenergi og den faste kodebogenergi omfatter bestemmelse af en faktor baseret på den adaptive kodebogenergi og den faste kodebogenergi.
3. Fremgangsmåden ifølge krav 2, hvor kodning af redundant-versionen af rammen baseret på den adaptive kodebogenergi og den faste kodebogenergi yderligere omfatter bestemmelse hvorvidt faktoren er under en første tærskelværdi, er mellem den første tærskelværdi og en anden tærskelværdi eller er over den anden tærskelværdi.
4. Fremgangsmåden ifølge krav 3, hvor hvis faktoren er under den første tærskelværdi, så omfatter kodning af redundant-versionen af rammen kodning af kun én eller flere faste kodebogparametre for redundant-versionen af rammen.
5. Fremgangsmåden ifølge krav 3, hvor hvis faktoren er mellem den første tærskelværdi og anden tærskelværdi, så omfatter kodning af redundant-versionen af rammen kodning af en eller flere adaptive kodebogparametre og en eller flere faste kodebogparametre for redundant-versionen af rammen; og fortrinsvis hvor kodning af redundant-versionen af rammen omfatter at springe over kodning af mindst en parameter for mindst en underramme af rammen; eller hvor kodning af redundant-versionen af rammen yderligere omfatter bestemmelse af en eller flere underrammer for at springe over kodning af en eller flere parametre på en fast basis eller på en adaptiv basis.
6. Fremgangsmåden ifølge krav 3, hvor hvis faktoren er over den anden tærskelværdi, så omfatter kodning af redundant-versionen af rammen kodning kun af en eller flere adaptive kodebogparametre for redundant-versionen af rammen; eller hvor den første tærskelværdi er 0,15 og den anden tærskelværdi er 0,3.
7. Fremgangsmåden ifølge krav 2, hvor faktoren er M i overensstemmelse med en ligning
hvor E(ACB) er den adaptive kodebogenergi og E(FCB) er den faste kodebogenergi.
8. Fremgangsmåden ifølge krav 1, hvor rammen er en underramme; eller hvor en størrelse af redundant-versionen af rammen er variabel.
9. Fremgangsmåden ifølge krav 1, hvor kodning af redundant-versionen af rammen omfatter selektivt at undlade en eller flere parametre fra en primær bitstrøm.
10. Fremgangsmåden ifølge krav 1, hvor kodning af redundant-versionen af rammen omfatter at gentage indkodningen af rammen under anvendelse af færre bits.
11. Fremgangsmåde til redundant rammeafkodning afen elektronisk indretning, omfattende: bestemme hvorvidt en ramme fra et audiosignal uden held modtages; bestemme et kodeskema ved at bestemme hvorvidt en redundant version af rammen omfatter kun en eller flere adaptive kodebogparametre, kun en eller flere faste kodebogparametre, eller en eller flere adaptive kodebogparametre og en eller flere faste kodebogparametre hvis en ramme uden held modtages; og rekonstruere rammen baseret på kodeskemaet hvis en ramme uden held modtages.
12. Fremgangsmåden ifølge krav 11, hvor bestemmelse af kodeskemaet er baseret på en eller flere modtagne kodeskemabits; eller hvor rekonstruktion af rammen yderligere er baseret på redundant-versionen af rammen.
13. Computer-programprodukt til redundant rammekodning, omfattende et ikke-transitorisk håndgribeligt computer-læsbart medium med instruktioner derpå, hvilke instruktioner omfatter: kode til at forårsage en elektronisk indretning til at udføre fremgangsmåden ifølge et hvilket som helst af kravene 1-12.
14. Apparat til redundant rammekodning, omfattende: organ til at bestemme en adaptiv kodebogenergi og en fast kodebogenergi baseret på en ramme fra et audiosignal; organ til at kodning af en redundant version af rammen baseret på den adaptive kodebogenergi og den faste kodebogenergi; og organ til at sende en efterfølgende ramme der omfatter den redundante version af rammen.
15. Apparat til redundant rammeafkodning, omfattende: organ til at bestemme hvorvidt en ramme fra et audiosignal uden held modtages; organ til at bestemme et kodeskema ved at bestemme hvorvidt en redundant version af rammen omfatter kun en eller flere adaptive kodebogparametre, kun en eller flere faste kodebogparametre, eller en eller flere adaptive kodebogparametre og en eller flere faste kodebogparametre hvis en ramme uden held modtages; og organ til at rekonstruere rammen baseret på kodeskemaet hvis en ramme uden held modtages.
DK13702313.1T 2012-01-20 2013-01-18 Indretninger, fremgangsmåder og computer-programprodukt til redundant rammekodning og afkodning DK2805325T3 (da)

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US201261589103P 2012-01-20 2012-01-20
US201261661245P 2012-06-18 2012-06-18
US13/743,797 US9275644B2 (en) 2012-01-20 2013-01-17 Devices for redundant frame coding and decoding
PCT/US2013/022246 WO2013109956A1 (en) 2012-01-20 2013-01-18 Devices for redundant frame coding and decoding

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HU (1) HUE028957T2 (da)
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IN2014CN04804A (da) 2015-09-18
HUE028957T2 (en) 2017-01-30
CN104054125B (zh) 2017-02-22
KR101699138B1 (ko) 2017-01-23
KR20140116511A (ko) 2014-10-02
ES2571862T3 (es) 2016-05-27
SI2805325T1 (sl) 2016-06-30
EP2805325A1 (en) 2014-11-26
US20130191121A1 (en) 2013-07-25
JP6077011B2 (ja) 2017-02-08
EP2805325B1 (en) 2016-03-16
CN104054125A (zh) 2014-09-17
US9275644B2 (en) 2016-03-01
JP2015509214A (ja) 2015-03-26

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