IN2015DN02595A - - Google Patents

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Publication number
IN2015DN02595A
IN2015DN02595A IN2595DEN2015A IN2015DN02595A IN 2015DN02595 A IN2015DN02595 A IN 2015DN02595A IN 2595DEN2015 A IN2595DEN2015 A IN 2595DEN2015A IN 2015DN02595 A IN2015DN02595 A IN 2015DN02595A
Authority
IN
India
Prior art keywords
audio
coding
supplemental information
unit
packet
Prior art date
Application number
Inventor
Tsutsumi Kimitaka
Kikuiri Kei
Yamaguchi Atsushi
Original Assignee
Ntt Docomo Inc
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 Ntt Docomo Inc filed Critical Ntt Docomo Inc
Publication of IN2015DN02595A publication Critical patent/IN2015DN02595A/en

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Classifications

    • 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
    • G10L19/125—Pitch excitation, e.g. pitch synchronous innovation CELP [PSI-CELP]
    • 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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • 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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction

Abstract

An objective of the present invention is when packet loss occurs in audio coding, to recover audio quality without increasing algorithm delay. An audio signal transmission device which codes an audio signal comprises an audio coding unit which codes an audio signal , and a supplemental information coding unit which, from a prefetch , computes and codes supplemental information. Conversely, an audio signal receiving device which decodes the audio coding and outputs the audio signal comprises: an audio coding buffer which detects packet loss on the basis of a receiving state of an audio packet; an audio parameter decoding unit which decodes the audio coding upon successful receipt of the audio packet; a supplemental information decoding unit which decodes the supplemental information coding upon successful receipt of the audio packet; a supplemental information accumulation unit which accumulates supplemental information which is obtained by decoding supplemental information coding; an audio parameter loss processing unit which outputs an audio parameter when the audio packet loss is detected; and an audio compositing unit which composites the decoded audio from the audio parameter.
IN2595DEN2015 2012-11-15 2013-11-12 IN2015DN02595A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012251646 2012-11-15
PCT/JP2013/080589 WO2014077254A1 (en) 2012-11-15 2013-11-12 Audio coding device, audio coding method, audio coding program, audio decoding device, audio decoding method, and audio decoding program

Publications (1)

Publication Number Publication Date
IN2015DN02595A true IN2015DN02595A (en) 2015-09-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
IN2595DEN2015 IN2015DN02595A (en) 2012-11-15 2013-11-12

Country Status (17)

Country Link
US (7) US9564143B2 (en)
EP (2) EP2922053B1 (en)
JP (8) JP6158214B2 (en)
KR (10) KR102171293B1 (en)
CN (2) CN104781876B (en)
AU (6) AU2013345949B2 (en)
CA (4) CA3044983C (en)
DK (1) DK2922053T3 (en)
ES (1) ES2747353T3 (en)
HK (1) HK1209229A1 (en)
IN (1) IN2015DN02595A (en)
MX (3) MX345692B (en)
PL (1) PL2922053T3 (en)
PT (1) PT2922053T (en)
RU (8) RU2612581C2 (en)
TW (2) TWI587284B (en)
WO (1) WO2014077254A1 (en)

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US20200126576A1 (en) 2020-04-23
RU2612581C2 (en) 2017-03-09
KR20190133302A (en) 2019-12-02
JP6793675B2 (en) 2020-12-02
CA2886140C (en) 2021-03-23
KR102302012B1 (en) 2021-09-13
HK1209229A1 (en) 2016-03-24
CA3127953C (en) 2023-09-26
RU2665301C1 (en) 2018-08-28
AU2019202186B2 (en) 2020-12-03
JP7209032B2 (en) 2023-01-19
WO2014077254A1 (en) 2014-05-22
KR102259112B1 (en) 2021-05-31
CA3210225A1 (en) 2014-05-22
RU2015122777A (en) 2017-01-10
KR20150056614A (en) 2015-05-26
CN104781876A (en) 2015-07-15
AU2019202186A1 (en) 2019-04-18
EP2922053A1 (en) 2015-09-23
TW201635274A (en) 2016-10-01
JP2020038396A (en) 2020-03-12
PT2922053T (en) 2019-10-15
JP2017138607A (en) 2017-08-10
JP2019070866A (en) 2019-05-09
EP3579228A1 (en) 2019-12-11
US20220059108A1 (en) 2022-02-24
RU2722510C1 (en) 2020-06-01
JP6846500B2 (en) 2021-03-24
KR102171293B1 (en) 2020-10-28
US9881627B2 (en) 2018-01-30
MX362139B (en) 2019-01-07
US11749292B2 (en) 2023-09-05
AU2017208369A1 (en) 2017-08-17
TWI587284B (en) 2017-06-11
RU2760485C1 (en) 2021-11-25
RU2737465C1 (en) 2020-11-30
AU2013345949A1 (en) 2015-04-16
AU2017208369B2 (en) 2019-01-03
US10553231B2 (en) 2020-02-04
US20170148459A1 (en) 2017-05-25
AU2023208191A1 (en) 2023-08-17
RU2640743C1 (en) 2018-01-11
US11211077B2 (en) 2021-12-28
CN104781876B (en) 2017-07-21
JP2021092814A (en) 2021-06-17
US20180122394A1 (en) 2018-05-03
DK2922053T3 (en) 2019-09-23
MX345692B (en) 2017-02-10
EP2922053B1 (en) 2019-08-28
KR20160111550A (en) 2016-09-26
JPWO2014077254A1 (en) 2017-01-05
US20200126577A1 (en) 2020-04-23
TW201432670A (en) 2014-08-16
AU2020294317B2 (en) 2022-03-31
ES2747353T3 (en) 2020-03-10
KR20200123285A (en) 2020-10-28
JP6626026B2 (en) 2019-12-25
JP6659882B2 (en) 2020-03-04
CN107256709B (en) 2021-02-26
KR20180115357A (en) 2018-10-22
CA3044983A1 (en) 2014-05-22
JP2016197254A (en) 2016-11-24
RU2713605C1 (en) 2020-02-05
CN107256709A (en) 2017-10-17
AU2022202856B2 (en) 2023-06-08
CA2886140A1 (en) 2014-05-22
CA3044983C (en) 2022-07-12
TWI547940B (en) 2016-09-01
US20150262588A1 (en) 2015-09-17
AU2013345949B2 (en) 2017-05-04
KR102173422B1 (en) 2020-11-03
US9564143B2 (en) 2017-02-07
AU2020294317A1 (en) 2021-02-25
KR20210118988A (en) 2021-10-01
BR112015008505A2 (en) 2020-01-07
US11195538B2 (en) 2021-12-07
PL2922053T3 (en) 2019-11-29
KR20170107590A (en) 2017-09-25
MX2018016263A (en) 2021-12-16
MX2015005885A (en) 2015-09-23
JP2018112749A (en) 2018-07-19
KR20170141827A (en) 2017-12-26
KR101812123B1 (en) 2017-12-26
JP6872597B2 (en) 2021-05-19
RU2690775C1 (en) 2019-06-05
JP6158214B2 (en) 2017-07-05
KR20200051858A (en) 2020-05-13
CA3127953A1 (en) 2014-05-22
EP2922053A4 (en) 2016-07-06
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AU2022202856A1 (en) 2022-05-19
US20200126578A1 (en) 2020-04-23
US11176955B2 (en) 2021-11-16
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KR102459376B1 (en) 2022-10-25
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KR102110853B1 (en) 2020-05-14
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