SG10201406778VA - Multi-mode audio codec and celp coding adapted therefore - Google Patents

Multi-mode audio codec and celp coding adapted therefore

Info

Publication number
SG10201406778VA
SG10201406778VA SG10201406778VA SG10201406778VA SG10201406778VA SG 10201406778V A SG10201406778V A SG 10201406778VA SG 10201406778V A SG10201406778V A SG 10201406778VA SG 10201406778V A SG10201406778V A SG 10201406778VA SG 10201406778V A SG10201406778V A SG 10201406778VA
Authority
SG
Singapore
Prior art keywords
gain value
celp
bitstream
transform
frames
Prior art date
Application number
SG10201406778VA
Other languages
English (en)
Inventor
Ralf Geiger
Guillaume Fuchs
Markus Multrus
Bernhard Grill
Original Assignee
Fraunhofer Ges Forschung
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 Fraunhofer Ges Forschung filed Critical Fraunhofer Ges Forschung
Publication of SG10201406778VA publication Critical patent/SG10201406778VA/en

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    • 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
    • G10L19/08—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 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
    • G10L19/08—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 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
    • 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
    • G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/03—Spectral prediction for preventing pre-echo; Temporary noise shaping [TNS], e.g. in MPEG2 or MPEG4
    • 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
    • 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
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/083—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being an excitation gain
    • 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
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • 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
    • G10L2019/0002—Codebook adaptations

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
SG10201406778VA 2009-10-20 2010-10-19 Multi-mode audio codec and celp coding adapted therefore SG10201406778VA (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25344009P 2009-10-20 2009-10-20

Publications (1)

Publication Number Publication Date
SG10201406778VA true SG10201406778VA (en) 2015-01-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
SG10201406778VA SG10201406778VA (en) 2009-10-20 2010-10-19 Multi-mode audio codec and celp coding adapted therefore

Country Status (18)

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US (3) US8744843B2 (es)
EP (1) EP2491555B1 (es)
JP (2) JP6214160B2 (es)
KR (1) KR101508819B1 (es)
CN (2) CN102859589B (es)
AU (1) AU2010309894B2 (es)
BR (1) BR112012009490B1 (es)
CA (3) CA2778240C (es)
ES (1) ES2453098T3 (es)
HK (1) HK1175293A1 (es)
MX (1) MX2012004593A (es)
MY (2) MY167980A (es)
PL (1) PL2491555T3 (es)
RU (1) RU2586841C2 (es)
SG (1) SG10201406778VA (es)
TW (1) TWI455114B (es)
WO (1) WO2011048094A1 (es)
ZA (1) ZA201203570B (es)

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Publication number Publication date
HK1175293A1 (en) 2013-06-28
CA2862715C (en) 2017-10-17
BR112012009490A2 (pt) 2016-05-03
CA2862712A1 (en) 2011-04-28
JP6214160B2 (ja) 2017-10-18
KR101508819B1 (ko) 2015-04-07
RU2586841C2 (ru) 2016-06-10
EP2491555A1 (en) 2012-08-29
RU2012118788A (ru) 2013-11-10
MY167980A (en) 2018-10-09
MY164399A (en) 2017-12-15
JP2015043096A (ja) 2015-03-05
KR20120082435A (ko) 2012-07-23
US8744843B2 (en) 2014-06-03
US9495972B2 (en) 2016-11-15
CN104021795B (zh) 2017-06-09
CN102859589A (zh) 2013-01-02
US20140343953A1 (en) 2014-11-20
WO2011048094A1 (en) 2011-04-28
US20120253797A1 (en) 2012-10-04
MX2012004593A (es) 2012-06-08
CA2862712C (en) 2017-10-17
ES2453098T3 (es) 2014-04-04
PL2491555T3 (pl) 2014-08-29
CN104021795A (zh) 2014-09-03
CN102859589B (zh) 2014-07-09
ZA201203570B (en) 2013-05-29
TW201131554A (en) 2011-09-16
CA2862715A1 (en) 2011-04-28
JP6173288B2 (ja) 2017-08-02
US20160260438A1 (en) 2016-09-08
AU2010309894A1 (en) 2012-05-24
AU2010309894B2 (en) 2014-03-13
CA2778240C (en) 2016-09-06
EP2491555B1 (en) 2014-03-05
BR112012009490B1 (pt) 2020-12-01
JP2013508761A (ja) 2013-03-07
US9715883B2 (en) 2017-07-25
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TWI455114B (zh) 2014-10-01

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