PL2951814T3 - Emfaza małych częstotliwości kodowania opartego na LPC w dziedzinie częstotliwości - Google Patents

Emfaza małych częstotliwości kodowania opartego na LPC w dziedzinie częstotliwości

Info

Publication number
PL2951814T3
PL2951814T3 PL14701984T PL14701984T PL2951814T3 PL 2951814 T3 PL2951814 T3 PL 2951814T3 PL 14701984 T PL14701984 T PL 14701984T PL 14701984 T PL14701984 T PL 14701984T PL 2951814 T3 PL2951814 T3 PL 2951814T3
Authority
PL
Poland
Prior art keywords
frequency
lpc
low
based coding
frequency domain
Prior art date
Application number
PL14701984T
Other languages
English (en)
Polish (pl)
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 PL2951814T3 publication Critical patent/PL2951814T3/pl

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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)
PL14701984T 2013-01-29 2014-01-28 Emfaza małych częstotliwości kodowania opartego na LPC w dziedzinie częstotliwości PL2951814T3 (pl)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201361758103P 2013-01-29 2013-01-29
EP14701984.8A EP2951814B1 (en) 2013-01-29 2014-01-28 Low-frequency emphasis for lpc-based coding in frequency domain
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
PL2951814T3 true PL2951814T3 (pl) 2017-10-31

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PL14701984T PL2951814T3 (pl) 2013-01-29 2014-01-28 Emfaza małych częstotliwości kodowania opartego na LPC w dziedzinie częstotliwości

Country Status (19)

Country Link
US (5) US10176817B2 (enExample)
EP (1) EP2951814B1 (enExample)
JP (1) JP6148811B2 (enExample)
KR (1) KR101792712B1 (enExample)
CN (2) CN105122357B (enExample)
AR (2) AR094682A1 (enExample)
AU (1) AU2014211520B2 (enExample)
BR (1) BR112015018040B1 (enExample)
CA (1) CA2898677C (enExample)
ES (1) ES2635142T3 (enExample)
MX (1) MX346927B (enExample)
MY (1) MY178306A (enExample)
PL (1) PL2951814T3 (enExample)
PT (1) PT2951814T (enExample)
RU (1) RU2612589C2 (enExample)
SG (1) SG11201505911SA (enExample)
TW (1) TWI536369B (enExample)
WO (1) WO2014118152A1 (enExample)
ZA (1) ZA201506314B (enExample)

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US20150332695A1 (en) 2015-11-19
ZA201506314B (en) 2016-07-27
HK1218018A1 (en) 2017-01-27
AU2014211520B2 (en) 2017-04-06
RU2015136223A (ru) 2017-03-06
EP2951814B1 (en) 2017-05-10
US20180293993A9 (en) 2018-10-11
MX346927B (es) 2017-04-05
MX2015009752A (es) 2015-11-06
US20200327896A1 (en) 2020-10-15
US20180240467A1 (en) 2018-08-23
MY178306A (en) 2020-10-07
US11568883B2 (en) 2023-01-31
TW201435861A (zh) 2014-09-16
AR094682A1 (es) 2015-08-19
KR20150110708A (ko) 2015-10-02
RU2612589C2 (ru) 2017-03-09
CN110047500B (zh) 2023-09-05
KR101792712B1 (ko) 2017-11-02
PT2951814T (pt) 2017-07-25
CA2898677C (en) 2017-12-05
JP2016508618A (ja) 2016-03-22
CN105122357B (zh) 2019-04-23
US20240119953A1 (en) 2024-04-11
US10692513B2 (en) 2020-06-23
US10176817B2 (en) 2019-01-08
EP2951814A1 (en) 2015-12-09
CN105122357A (zh) 2015-12-02
AR115901A2 (es) 2021-03-10
ES2635142T3 (es) 2017-10-02
WO2014118152A1 (en) 2014-08-07
BR112015018040B1 (pt) 2022-01-18
JP6148811B2 (ja) 2017-06-14
CA2898677A1 (en) 2014-08-07
TWI536369B (zh) 2016-06-01
SG11201505911SA (en) 2015-08-28
AU2014211520A1 (en) 2015-09-17
CN110047500A (zh) 2019-07-23
US20230087652A1 (en) 2023-03-23
US11854561B2 (en) 2023-12-26
BR112015018040A2 (enExample) 2017-07-11

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