MX354394B - Factor de escala optimizado para la extension de la banda de frecuencias en un decodificador de señales de audiofrecuencia. - Google Patents

Factor de escala optimizado para la extension de la banda de frecuencias en un decodificador de señales de audiofrecuencia.

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Publication number
MX354394B
MX354394B MX2016000255A MX2016000255A MX354394B MX 354394 B MX354394 B MX 354394B MX 2016000255 A MX2016000255 A MX 2016000255A MX 2016000255 A MX2016000255 A MX 2016000255A MX 354394 B MX354394 B MX 354394B
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Mexico
Prior art keywords
frequency band
scale factor
filter
optimized scale
linear prediction
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MX2016000255A
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English (en)
Other versions
MX2016000255A (es
Inventor
Ragot Stéphane
Kaniewska Magdalena
Original Assignee
Koninklijke Philips Nv
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Application filed by Koninklijke Philips Nv filed Critical Koninklijke Philips Nv
Publication of MX2016000255A publication Critical patent/MX2016000255A/es
Publication of MX354394B publication Critical patent/MX354394B/es

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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
    • G10L19/005—Correction of errors induced by the transmission channel, if related to the coding algorithm
    • 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
    • G10L19/008—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 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
    • G10L19/08—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
    • G10L19/04—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
    • G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
    • G10L25/72—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for transmitting results of analysis

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

FACTOR DE ESCALA OPTIMIZADO PARA LA EXTENSIÓN DE LA BANDA DE FRECUENCIAS EN UN DECODIFICADOR DE SEÑALES DE AUDIOFRECUENCIA La invención se refiere a un método para la determinación del factor de escala optimizado a ser aplicado a una señal de excitación o a un filtro durante un proceso para la extensión de la banda de frecuencias de una señal de audiofrecuencia, proceso de extensión de la banda (E601) que comprende una etapa de decodificación o de extracción, en una primera banda de frecuencias, de una señal de excitación y parámetros de la primera banda de frecuencias que incluyen los coeficientes de un filtro de predicción lineal, una etapa de generación de una señal de excitación que se extiende sobre al menos una segunda banda de frecuencias, y una etapa de filtrado por medio de un filtro de predicción lineal para la segunda banda de frecuencias. El procedimiento de determinación comprende las etapas de determinación (E602) de un filtro de predicción lineal referido como un filtro adicional, o de un orden inferior al del filtro de predicción lineal de la primera banda de frecuencias, obteniéndose los coeficientes del filtro adicional a partir de los parámetros decodificados o extraídos de la primera banda de frecuencias y el cálculo (E603) del factor de escala optimizado en función de al menos los coeficientes del filtro adicional. La invención se refiere también a un dispositivo para la determinación de un factor de escala optimizado implementando el procedimiento tal como se ha descrito y a un decodificador que incluye dicho dispositivo. Figura para el Resumen Figura 6.
MX2016000255A 2013-07-12 2014-07-04 Factor de escala optimizado para la extension de la banda de frecuencias en un decodificador de señales de audiofrecuencia. MX354394B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1356909A FR3008533A1 (fr) 2013-07-12 2013-07-12 Facteur d'echelle optimise pour l'extension de bande de frequence dans un decodeur de signaux audiofrequences
PCT/FR2014/051720 WO2015004373A1 (fr) 2013-07-12 2014-07-04 Facteur d'échelle optimisé pour l'extension de bande de fréquence dans un décodeur de signaux audiofréquences

Publications (2)

Publication Number Publication Date
MX2016000255A MX2016000255A (es) 2016-04-28
MX354394B true MX354394B (es) 2018-02-23

Family

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Family Applications (1)

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MX2016000255A MX354394B (es) 2013-07-12 2014-07-04 Factor de escala optimizado para la extension de la banda de frecuencias en un decodificador de señales de audiofrecuencia.

Country Status (11)

Country Link
US (8) US10446163B2 (es)
EP (1) EP3020043B1 (es)
JP (4) JP6487429B2 (es)
KR (4) KR102343019B1 (es)
CN (4) CN107527628B (es)
BR (4) BR122017018553B1 (es)
CA (4) CA3108924A1 (es)
FR (1) FR3008533A1 (es)
MX (1) MX354394B (es)
RU (4) RU2756434C2 (es)
WO (1) WO2015004373A1 (es)

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RU2017144515A3 (es) 2021-04-19
KR102319881B1 (ko) 2021-11-02
US10943594B2 (en) 2021-03-09
US10783895B2 (en) 2020-09-22
US20190385625A1 (en) 2019-12-19
RU2668058C2 (ru) 2018-09-25
US20180082699A1 (en) 2018-03-22
RU2016104466A3 (es) 2018-05-28
CN107527628B (zh) 2021-03-30
US20190378527A1 (en) 2019-12-12
RU2017144518A (ru) 2019-02-15
RU2756434C2 (ru) 2021-09-30
JP6487429B2 (ja) 2019-03-20
US10438599B2 (en) 2019-10-08
RU2017144519A3 (es) 2021-04-19
CN107527629B (zh) 2022-01-04
CN107527629A (zh) 2017-12-29
KR20160030555A (ko) 2016-03-18
US10672412B2 (en) 2020-06-02
US20180018982A1 (en) 2018-01-18
US10354664B2 (en) 2019-07-16
CN107492385B (zh) 2022-02-11
RU2017144519A (ru) 2019-02-15
EP3020043B1 (fr) 2017-02-08
US20180018983A1 (en) 2018-01-18
RU2751104C2 (ru) 2021-07-08
KR102423081B1 (ko) 2022-07-21
KR20170103996A (ko) 2017-09-13
US20190371350A1 (en) 2019-12-05
JP2017215618A (ja) 2017-12-07
JP2016528539A (ja) 2016-09-15
JP6515147B2 (ja) 2019-05-15
US10943593B2 (en) 2021-03-09
CA3108921C (en) 2024-01-30
KR102315639B1 (ko) 2021-10-21
JP2017215619A (ja) 2017-12-07
JP6515157B2 (ja) 2019-05-15
BR122017018553B1 (pt) 2022-04-19
CA3108921A1 (en) 2015-01-15
RU2756435C2 (ru) 2021-09-30
RU2016104466A (ru) 2017-08-18
CA2917795C (en) 2021-11-30
CN107492385A (zh) 2017-12-19
US20190385626A1 (en) 2019-12-19
KR102343019B1 (ko) 2021-12-27
WO2015004373A1 (fr) 2015-01-15
BR122017018556B1 (pt) 2022-03-29
RU2017144518A3 (es) 2021-05-07
US10446163B2 (en) 2019-10-15
KR20170103995A (ko) 2017-09-13
JP2017215601A (ja) 2017-12-07
CA3108924A1 (en) 2015-01-15
MX2016000255A (es) 2016-04-28
BR112016000337B1 (pt) 2021-02-23
US20160203826A1 (en) 2016-07-14
CA3109028C (en) 2024-01-30
RU2017144515A (ru) 2019-02-15
BR122017018557B1 (pt) 2021-08-03
CN105378837A (zh) 2016-03-02
EP3020043A1 (fr) 2016-05-18
US10438600B2 (en) 2019-10-08
CA2917795A1 (en) 2015-01-15
JP6515158B2 (ja) 2019-05-15
CN107527628A (zh) 2017-12-29
CA3109028A1 (en) 2015-01-15
FR3008533A1 (fr) 2015-01-16
CN105378837B (zh) 2019-09-13
KR20170103042A (ko) 2017-09-12

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