AR094682A1 - Énfasis de bajas frecuencias para codificación basada en lpc (codificación de predicción lineal) en el dominio de frecuencia - Google Patents

Énfasis de bajas frecuencias para codificación basada en lpc (codificación de predicción lineal) en el dominio de frecuencia

Info

Publication number
AR094682A1
AR094682A1 ARP140100298A ARP140100298A AR094682A1 AR 094682 A1 AR094682 A1 AR 094682A1 AR P140100298 A ARP140100298 A AR P140100298A AR P140100298 A ARP140100298 A AR P140100298A AR 094682 A1 AR094682 A1 AR 094682A1
Authority
AR
Argentina
Prior art keywords
linear prediction
prediction coding
spectrum
low frequency
coding
Prior art date
Application number
ARP140100298A
Other languages
English (en)
Spanish (es)
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 AR094682A1 publication Critical patent/AR094682A1/es

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)
ARP140100298A 2013-01-29 2014-01-29 Énfasis de bajas frecuencias para codificación basada en lpc (codificación de predicción lineal) en el dominio de frecuencia AR094682A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201361758103P 2013-01-29 2013-01-29

Publications (1)

Publication Number Publication Date
AR094682A1 true AR094682A1 (es) 2015-08-19

Family

ID=50030281

Family Applications (2)

Application Number Title Priority Date Filing Date
ARP140100298A AR094682A1 (es) 2013-01-29 2014-01-29 Énfasis de bajas frecuencias para codificación basada en lpc (codificación de predicción lineal) en el dominio de frecuencia
ARP190102203A AR115901A2 (es) 2013-01-29 2019-08-02 Énfasis de bajas frecuencias para codificación basada en lpc (codificación de predicción lineal) en el dominio de frecuencia

Family Applications After (1)

Application Number Title Priority Date Filing Date
ARP190102203A AR115901A2 (es) 2013-01-29 2019-08-02 Énfasis de bajas frecuencias para codificación basada en lpc (codificación de predicción lineal) en el dominio de frecuencia

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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US10847172B2 (en) * 2018-12-17 2020-11-24 Microsoft Technology Licensing, Llc Phase quantization in a speech encoder
CN113348507B (zh) * 2019-01-13 2025-02-21 华为技术有限公司 高分辨率音频编解码
TWI789577B (zh) * 2020-04-01 2023-01-11 同響科技股份有限公司 音訊資料重建方法及系統
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Also Published As

Publication number Publication date
KR20150110708A (ko) 2015-10-02
TWI536369B (zh) 2016-06-01
US20180240467A1 (en) 2018-08-23
US20230087652A1 (en) 2023-03-23
EP2951814B1 (en) 2017-05-10
US10176817B2 (en) 2019-01-08
ZA201506314B (en) 2016-07-27
EP2951814A1 (en) 2015-12-09
US11568883B2 (en) 2023-01-31
US11854561B2 (en) 2023-12-26
PL2951814T3 (pl) 2017-10-31
AR115901A2 (es) 2021-03-10
CN105122357A (zh) 2015-12-02
MX2015009752A (es) 2015-11-06
US20180293993A9 (en) 2018-10-11
US10692513B2 (en) 2020-06-23
CN105122357B (zh) 2019-04-23
RU2612589C2 (ru) 2017-03-09
AU2014211520A1 (en) 2015-09-17
BR112015018040B1 (pt) 2022-01-18
MX346927B (es) 2017-04-05
CA2898677C (en) 2017-12-05
TW201435861A (zh) 2014-09-16
SG11201505911SA (en) 2015-08-28
JP6148811B2 (ja) 2017-06-14
PT2951814T (pt) 2017-07-25
WO2014118152A1 (en) 2014-08-07
RU2015136223A (ru) 2017-03-06
CN110047500A (zh) 2019-07-23
JP2016508618A (ja) 2016-03-22
US20240119953A1 (en) 2024-04-11
CN110047500B (zh) 2023-09-05
US20200327896A1 (en) 2020-10-15
ES2635142T3 (es) 2017-10-02
BR112015018040A2 (enExample) 2017-07-11
HK1218018A1 (en) 2017-01-27
AU2014211520B2 (en) 2017-04-06
MY178306A (en) 2020-10-07
KR101792712B1 (ko) 2017-11-02
US20150332695A1 (en) 2015-11-19
CA2898677A1 (en) 2014-08-07

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