SG11201505911SA - Low-frequency emphasis for lpc-based coding in frequency domain - Google Patents

Low-frequency emphasis for lpc-based coding in frequency domain

Info

Publication number
SG11201505911SA
SG11201505911SA SG11201505911SA SG11201505911SA SG11201505911SA SG 11201505911S A SG11201505911S A SG 11201505911SA SG 11201505911S A SG11201505911S A SG 11201505911SA SG 11201505911S A SG11201505911S A SG 11201505911SA SG 11201505911S A SG11201505911S A SG 11201505911SA
Authority
SG
Singapore
Prior art keywords
frequency
lpc
low
based coding
frequency domain
Prior art date
Application number
SG11201505911SA
Other languages
English (en)
Inventor
Stefan Döhla
Bernhard Grill
Christian Helmrich
Nikolaus Rettelbach
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 SG11201505911SA publication Critical patent/SG11201505911SA/en

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
    • 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
    • G10L19/087—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters using mixed excitation models, e.g. MELP, MBE, split band LPC or HVXC
    • 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
    • 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
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • 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
    • 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
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
    • 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
    • G10L19/0212—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 using orthogonal transformation
    • 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
    • G10L2019/0001—Codebooks
    • G10L2019/0016—Codebook for LPC parameters

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)
SG11201505911SA 2013-01-29 2014-01-28 Low-frequency emphasis for lpc-based coding in frequency domain SG11201505911SA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361758103P 2013-01-29 2013-01-29
PCT/EP2014/051585 WO2014118152A1 (en) 2013-01-29 2014-01-28 Low-frequency emphasis for lpc-based coding in frequency domain

Publications (1)

Publication Number Publication Date
SG11201505911SA true SG11201505911SA (en) 2015-08-28

Family

ID=50030281

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201505911SA SG11201505911SA (en) 2013-01-29 2014-01-28 Low-frequency emphasis for lpc-based coding in frequency domain

Country Status (20)

Country Link
US (5) US10176817B2 (de)
EP (1) EP2951814B1 (de)
JP (1) JP6148811B2 (de)
KR (1) KR101792712B1 (de)
CN (2) CN110047500B (de)
AR (2) AR094682A1 (de)
AU (1) AU2014211520B2 (de)
BR (1) BR112015018040B1 (de)
CA (1) CA2898677C (de)
ES (1) ES2635142T3 (de)
HK (1) HK1218018A1 (de)
MX (1) MX346927B (de)
MY (1) MY178306A (de)
PL (1) PL2951814T3 (de)
PT (1) PT2951814T (de)
RU (1) RU2612589C2 (de)
SG (1) SG11201505911SA (de)
TW (1) TWI536369B (de)
WO (1) WO2014118152A1 (de)
ZA (1) ZA201506314B (de)

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Publication number Publication date
RU2612589C2 (ru) 2017-03-09
JP6148811B2 (ja) 2017-06-14
PL2951814T3 (pl) 2017-10-31
US20240119953A1 (en) 2024-04-11
PT2951814T (pt) 2017-07-25
CN110047500A (zh) 2019-07-23
US11568883B2 (en) 2023-01-31
AR094682A1 (es) 2015-08-19
US10692513B2 (en) 2020-06-23
CA2898677C (en) 2017-12-05
EP2951814B1 (de) 2017-05-10
CN105122357A (zh) 2015-12-02
KR101792712B1 (ko) 2017-11-02
CN105122357B (zh) 2019-04-23
US10176817B2 (en) 2019-01-08
ES2635142T3 (es) 2017-10-02
AU2014211520A1 (en) 2015-09-17
RU2015136223A (ru) 2017-03-06
JP2016508618A (ja) 2016-03-22
TWI536369B (zh) 2016-06-01
US11854561B2 (en) 2023-12-26
CA2898677A1 (en) 2014-08-07
US20200327896A1 (en) 2020-10-15
MY178306A (en) 2020-10-07
ZA201506314B (en) 2016-07-27
US20230087652A1 (en) 2023-03-23
MX2015009752A (es) 2015-11-06
KR20150110708A (ko) 2015-10-02
BR112015018040A2 (de) 2017-07-11
WO2014118152A1 (en) 2014-08-07
BR112015018040B1 (pt) 2022-01-18
US20150332695A1 (en) 2015-11-19
CN110047500B (zh) 2023-09-05
US20180240467A1 (en) 2018-08-23
MX346927B (es) 2017-04-05
EP2951814A1 (de) 2015-12-09
TW201435861A (zh) 2014-09-16
HK1218018A1 (zh) 2017-01-27
US20180293993A9 (en) 2018-10-11
AU2014211520B2 (en) 2017-04-06
AR115901A2 (es) 2021-03-10

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