MX362419B - Aparato y metodo para mejorar un sistema mejorador de sonido de señal de audio. - Google Patents

Aparato y metodo para mejorar un sistema mejorador de sonido de señal de audio.

Info

Publication number
MX362419B
MX362419B MX2017001253A MX2017001253A MX362419B MX 362419 B MX362419 B MX 362419B MX 2017001253 A MX2017001253 A MX 2017001253A MX 2017001253 A MX2017001253 A MX 2017001253A MX 362419 B MX362419 B MX 362419B
Authority
MX
Mexico
Prior art keywords
audio signal
signal
enhancing
weighting factors
decorrelated
Prior art date
Application number
MX2017001253A
Other languages
English (en)
Other versions
MX2017001253A (es
Inventor
Scharrer Sebastian
varga Stefan
Hellmuth Oliver
Gampp Patrick
Uhle Christian
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 MX2017001253A publication Critical patent/MX2017001253A/es
Publication of MX362419B publication Critical patent/MX362419B/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
    • 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
    • G10L21/0272—Voice signal separating
    • G10L21/0308—Voice signal separating characterised by the type of parameter measurement, e.g. correlation techniques, zero crossing techniques or predictive 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
    • 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
    • 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 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
    • G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
    • G10L19/025—Detection of transients or attacks for time/frequency resolution switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
    • 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
    • G10L21/0208—Noise filtering
    • G10L21/0264—Noise filtering characterised by the type of parameter measurement, e.g. correlation techniques, zero crossing techniques or predictive techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Quality & Reliability (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Stereophonic System (AREA)

Abstract

Un aparato para mejorar una señal de audio comprende un procesador de señales para procesar la señal de audio a fin de reducir o eliminar porciones transitorias y tonales de la señal procesada y un eliminador de correlación para generar una primera señal sin correlación y una segunda señal sin correlación de la señal procesada. El aparato comprende además un combinador para combinar de forma ponderada la primera y la segunda señal sin correlación y la señal de audio o una señal derivada de la señal de audio por mejora de coherencia utilizando factores de ponderación variantes en el tiempo y para obtener una señal de audio de dos canales. El aparato comprende además un controlador para controlar los factores de ponderación variantes en el tiempo al analizar la señal de audio de tal forma que se multiplican diferentes porciones de la señal de audio por diferentes factores de ponderación y la señal de audio de dos canales tiene un grado variante en el tiempo de eliminación de correlación.
MX2017001253A 2014-07-30 2015-07-27 Aparato y metodo para mejorar un sistema mejorador de sonido de señal de audio. MX362419B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14179181.4A EP2980789A1 (en) 2014-07-30 2014-07-30 Apparatus and method for enhancing an audio signal, sound enhancing system
PCT/EP2015/067158 WO2016016189A1 (en) 2014-07-30 2015-07-27 Apparatus and method for enhancing an audio signal, sound enhancing system

Publications (2)

Publication Number Publication Date
MX2017001253A MX2017001253A (es) 2017-06-20
MX362419B true MX362419B (es) 2019-01-16

Family

ID=51228374

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2017001253A MX362419B (es) 2014-07-30 2015-07-27 Aparato y metodo para mejorar un sistema mejorador de sonido de señal de audio.

Country Status (12)

Country Link
US (1) US10242692B2 (es)
EP (2) EP2980789A1 (es)
JP (1) JP6377249B2 (es)
KR (1) KR101989062B1 (es)
CN (1) CN106796792B (es)
AU (1) AU2015295518B2 (es)
CA (1) CA2952157C (es)
ES (1) ES2797742T3 (es)
MX (1) MX362419B (es)
PL (1) PL3175445T3 (es)
RU (1) RU2666316C2 (es)
WO (1) WO2016016189A1 (es)

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Also Published As

Publication number Publication date
CA2952157A1 (en) 2016-02-04
CN106796792A (zh) 2017-05-31
EP3175445B8 (en) 2020-08-19
US20170133034A1 (en) 2017-05-11
EP3175445A1 (en) 2017-06-07
RU2017106093A3 (es) 2018-08-28
CA2952157C (en) 2019-03-19
US10242692B2 (en) 2019-03-26
EP3175445B1 (en) 2020-04-15
MX2017001253A (es) 2017-06-20
JP2017526265A (ja) 2017-09-07
PL3175445T3 (pl) 2020-09-21
KR101989062B1 (ko) 2019-06-13
AU2015295518B2 (en) 2017-09-28
WO2016016189A1 (en) 2016-02-04
EP2980789A1 (en) 2016-02-03
JP6377249B2 (ja) 2018-08-22
RU2017106093A (ru) 2018-08-28
BR112017000645A2 (pt) 2017-11-14
KR20170016488A (ko) 2017-02-13
ES2797742T3 (es) 2020-12-03
CN106796792B (zh) 2021-03-26
RU2666316C2 (ru) 2018-09-06
AU2015295518A1 (en) 2017-02-02

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