MX353240B - Dispositivo y método para extensión de ancho de banda para señales acústicas. - Google Patents

Dispositivo y método para extensión de ancho de banda para señales acústicas.

Info

Publication number
MX353240B
MX353240B MX2015016109A MX2015016109A MX353240B MX 353240 B MX353240 B MX 353240B MX 2015016109 A MX2015016109 A MX 2015016109A MX 2015016109 A MX2015016109 A MX 2015016109A MX 353240 B MX353240 B MX 353240B
Authority
MX
Mexico
Prior art keywords
frequency spectrum
bandwidth
low
frequency
input signals
Prior art date
Application number
MX2015016109A
Other languages
English (en)
Other versions
MX2015016109A (es
Inventor
Liu Zongxian
Nagisetty Srikanth
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 MX2015016109A publication Critical patent/MX2015016109A/es
Publication of MX353240B publication Critical patent/MX353240B/es

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/0204—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 subband decomposition
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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 OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Processing of the speech or voice signal 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
    • G10L21/0388—Details of processing therefor
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L19/032—Quantisation or dequantisation of spectral components
    • G10L19/035—Scalar quantisation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; 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
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band

Abstract

El propósito de la presente invención es extender de manera más eficiente, utilizando una velocidad de baja separación, el ancho de banda de las señales de entrada que tienen una estructura de grandes armónicos, con el propósito de obtener una mejor calidad de audio. La presente invención es instalada en un dispositivo que extiende el ancho de banda para la codificación y decodificación de una señal acústica. Esta nueva codificación de la extensión de ancho de banda identifica un componente de espectro de baja frecuencia que tiene la correlación más alta con una señal de ancho de banda de alta frecuencia entre las señales de entrada, duplica el espectro de alta frecuencia mediante el ajuste de energía del componente y mantiene la relación armónica entre el espectro de baja frecuencia y el espectro duplicado de alta frecuencia ajustando la posición de pico espectral del espectro duplicado de alta frecuencia, en función de la frecuencia armónica estimada a partir de un espectro compuesto de baja frecuencia.
MX2015016109A 2013-06-11 2014-06-10 Dispositivo y método para extensión de ancho de banda para señales acústicas. MX353240B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013122985 2013-06-11
PCT/JP2014/003103 WO2014199632A1 (ja) 2013-06-11 2014-06-10 音響信号の帯域幅拡張を行う装置及び方法

Publications (2)

Publication Number Publication Date
MX2015016109A MX2015016109A (es) 2016-10-26
MX353240B true MX353240B (es) 2018-01-05

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MX2015016109A MX353240B (es) 2013-06-11 2014-06-10 Dispositivo y método para extensión de ancho de banda para señales acústicas.

Country Status (11)

Country Link
US (4) US9489959B2 (es)
EP (2) EP3010018B1 (es)
JP (4) JP6407150B2 (es)
KR (1) KR102158896B1 (es)
CN (2) CN105408957B (es)
BR (1) BR122020016403B1 (es)
ES (1) ES2836194T3 (es)
MX (1) MX353240B (es)
PT (1) PT3010018T (es)
RU (2) RU2688247C2 (es)
WO (1) WO2014199632A1 (es)

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Also Published As

Publication number Publication date
JP2021002069A (ja) 2021-01-07
US20160111103A1 (en) 2016-04-21
RU2018121035A3 (es) 2019-03-05
RU2688247C2 (ru) 2019-05-21
WO2014199632A1 (ja) 2014-12-18
KR20160018497A (ko) 2016-02-17
JP2019008316A (ja) 2019-01-17
US9489959B2 (en) 2016-11-08
US20170323649A1 (en) 2017-11-09
US20190122679A1 (en) 2019-04-25
ES2836194T3 (es) 2021-06-24
KR102158896B1 (ko) 2020-09-22
JP6407150B2 (ja) 2018-10-17
RU2015151169A3 (es) 2018-03-02
BR122020016403B1 (pt) 2022-09-06
EP3010018B1 (en) 2020-08-12
RU2015151169A (ru) 2017-06-05
CN105408957A (zh) 2016-03-16
US9747908B2 (en) 2017-08-29
CN111477245A (zh) 2020-07-31
CN105408957B (zh) 2020-02-21
MX2015016109A (es) 2016-10-26
JP6773737B2 (ja) 2020-10-21
RU2018121035A (ru) 2019-03-05
JP7330934B2 (ja) 2023-08-22
EP3731226A1 (en) 2020-10-28
EP3010018A4 (en) 2016-06-15
BR112015029574A2 (pt) 2017-07-25
EP3010018A1 (en) 2016-04-20
JP2019008317A (ja) 2019-01-17
PT3010018T (pt) 2020-11-13
US10157622B2 (en) 2018-12-18
JPWO2014199632A1 (ja) 2017-02-23
US10522161B2 (en) 2019-12-31
RU2658892C2 (ru) 2018-06-25
US20170025130A1 (en) 2017-01-26

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