MX2017001242A - Aparato y metodo para procesar una senal de audio por el uso de un filtro posterior de armonicos. - Google Patents

Aparato y metodo para procesar una senal de audio por el uso de un filtro posterior de armonicos.

Info

Publication number
MX2017001242A
MX2017001242A MX2017001242A MX2017001242A MX2017001242A MX 2017001242 A MX2017001242 A MX 2017001242A MX 2017001242 A MX2017001242 A MX 2017001242A MX 2017001242 A MX2017001242 A MX 2017001242A MX 2017001242 A MX2017001242 A MX 2017001242A
Authority
MX
Mexico
Prior art keywords
audio signal
filter
pitch lag
processing
information
Prior art date
Application number
MX2017001242A
Other languages
English (en)
Other versions
MX360555B (es
Inventor
Dietz Martin
Jander Manuel
Disch Sascha
Neusinger Matthias
Markovic Goran
Helmrich Christian
Ravelli Emmanuel
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 MX2017001242A publication Critical patent/MX2017001242A/es
Publication of MX360555B publication Critical patent/MX360555B/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
    • G10L19/26—Pre-filtering or post-filtering
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L21/00—Vacuum gauges
    • G01L21/02—Vacuum gauges having a compression chamber in which gas, whose pressure is to be measured, is compressed
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Signal Processing (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Stereophonic System (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

Se proporciona un aparato para procesar una senal de audio que tiene asociada con el mismo una informacion de desfase de tono y una informacion de ganancia, que comprende un conversor de dominio (100) para convertir una primera representacion de dominio de la senal de audio en una segunda representacion de dominio de la senal de audio; y un filtro posterior de armonicos (104) para filtrar la segunda representacion de dominio de la senal de audio, en la que el filtro posterior esta basado en una funcion de transferencia que comprende un numerador y un denominador, en la que el numerador comprende un valor de ganancia indicado por la informacion de ganancia, y en la que el denominador comprende una parte entera de un desfase de tono indicado por la informacion de desfase de tono y un filtro de pulsaciones multiples que depende de una parte fraccionaria del desfase de tono.
MX2017001242A 2014-07-28 2015-07-24 Aparato y metodo para procesar una senal de audio por el uso de un filtro posterior de armonicos. MX360555B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14178820.8A EP2980799A1 (en) 2014-07-28 2014-07-28 Apparatus and method for processing an audio signal using a harmonic post-filter
PCT/EP2015/066998 WO2016016121A1 (en) 2014-07-28 2015-07-24 Apparatus and method for processing an audio signal using a harmonic post-filter

Publications (2)

Publication Number Publication Date
MX2017001242A true MX2017001242A (es) 2017-07-07
MX360555B MX360555B (es) 2018-11-07

Family

ID=51224878

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2017001242A MX360555B (es) 2014-07-28 2015-07-24 Aparato y metodo para procesar una senal de audio por el uso de un filtro posterior de armonicos.

Country Status (17)

Country Link
US (4) US10242688B2 (es)
EP (2) EP2980799A1 (es)
JP (4) JP6546264B2 (es)
KR (1) KR101959211B1 (es)
CN (2) CN106663444B (es)
AR (1) AR101340A1 (es)
AU (1) AU2015295603B2 (es)
CA (1) CA2955255C (es)
ES (1) ES2676584T3 (es)
MX (1) MX360555B (es)
MY (1) MY179023A (es)
PL (1) PL3175454T3 (es)
PT (1) PT3175454T (es)
RU (1) RU2665259C1 (es)
SG (1) SG11201700696UA (es)
TW (1) TWI590238B (es)
WO (1) WO2016016121A1 (es)

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Also Published As

Publication number Publication date
ES2676584T3 (es) 2018-07-23
US20210125624A1 (en) 2021-04-29
AR101340A1 (es) 2016-12-14
KR20170035987A (ko) 2017-03-31
KR101959211B1 (ko) 2019-03-18
BR112017001631A2 (pt) 2017-11-21
AU2015295603A1 (en) 2017-03-16
AU2015295603B2 (en) 2018-02-08
EP3175454B1 (en) 2018-06-20
EP3175454A1 (en) 2017-06-07
RU2665259C1 (ru) 2018-08-28
CA2955255A1 (en) 2016-02-04
TWI590238B (zh) 2017-07-01
MX360555B (es) 2018-11-07
JP2017522604A (ja) 2017-08-10
PL3175454T3 (pl) 2018-11-30
US20230282223A1 (en) 2023-09-07
PT3175454T (pt) 2018-10-08
CN106663444A (zh) 2017-05-10
JP2019194716A (ja) 2019-11-07
JP2023072014A (ja) 2023-05-23
WO2016016121A1 (en) 2016-02-04
US20170140769A1 (en) 2017-05-18
SG11201700696UA (en) 2017-02-27
JP2021064009A (ja) 2021-04-22
US11037580B2 (en) 2021-06-15
CA2955255C (en) 2019-04-30
CN112420061A (zh) 2021-02-26
MY179023A (en) 2020-10-26
US10242688B2 (en) 2019-03-26
JP6877488B2 (ja) 2021-05-26
CN106663444B (zh) 2020-12-01
US11694704B2 (en) 2023-07-04
JP6546264B2 (ja) 2019-07-17
JP7340553B2 (ja) 2023-09-07
TW201618086A (zh) 2016-05-16
EP2980799A1 (en) 2016-02-03
US20190198034A1 (en) 2019-06-27

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