MX359163B - Reduccion de fallas de filtro peine en mezcla descendente de canales multiples con alineacion de fase adaptativa. - Google Patents

Reduccion de fallas de filtro peine en mezcla descendente de canales multiples con alineacion de fase adaptativa.

Info

Publication number
MX359163B
MX359163B MX2016000909A MX2016000909A MX359163B MX 359163 B MX359163 B MX 359163B MX 2016000909 A MX2016000909 A MX 2016000909A MX 2016000909 A MX2016000909 A MX 2016000909A MX 359163 B MX359163 B MX 359163B
Authority
MX
Mexico
Prior art keywords
audio signal
reduction
input
comb filter
phase alignment
Prior art date
Application number
MX2016000909A
Other languages
English (en)
Other versions
MX2016000909A (es
Inventor
Kuntz Achim
Simone Füg
Michael Kratschmer
Juha Vilkamo
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 MX2016000909A publication Critical patent/MX2016000909A/es
Publication of MX359163B publication Critical patent/MX359163B/es

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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
    • G10L19/008—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
    • G10L19/005—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
    • G10L19/02—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
    • G10L19/02—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
    • 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
    • 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
    • G10L21/04—Time compression or expansion
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/01—Multi-channel, i.e. more than two input channels, sound reproduction with two speakers wherein the multi-channel information is substantially preserved
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2400/00—Details of stereophonic systems covered by H04S but not provided for in its groups
    • H04S2400/03—Aspects of down-mixing multi-channel audio to configurations with lower numbers of playback channels, e.g. 7.1 -> 5.1
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/03—Application of parametric coding in stereophonic audio systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (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 decodificador de procesamiento de señal de audio que tiene al menos una banda de frecuencia (36) y que está configurado para el procesamiento de una señal de audio de entrada (37) que tiene una pluralidad de canales de entrada (38) en al menos una banda de frecuencia (36), caracterizado porque el decodificador ( 2) está configurado para analizar la señal de entrada de audio (37), donde las dependencias entre canales (39) entre los canales de entrada (38) se identifican; y para alinear las fases de los canales de entrada (38) en base a las dependencias entre canales identificados (39), donde las fases de los canales de entrada (38) están más alineadas con respecto a la otra cuanto mayor es su dependencia entre canales (39); y someter a mezcla descendente la señal de audio de entrada alineada con una señal de audio de salida (40) que tiene un menor número de canales de salida (41) que el número de canales de entrada (38).
MX2016000909A 2013-07-22 2014-07-18 Reduccion de fallas de filtro peine en mezcla descendente de canales multiples con alineacion de fase adaptativa. MX359163B (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP13177358 2013-07-22
EP13189287.9A EP2838086A1 (en) 2013-07-22 2013-10-18 In an reduction of comb filter artifacts in multi-channel downmix with adaptive phase alignment
PCT/EP2014/065537 WO2015011057A1 (en) 2013-07-22 2014-07-18 In an reduction of comb filter artifacts in multi-channel downmix with adaptive phase alignment

Publications (2)

Publication Number Publication Date
MX2016000909A MX2016000909A (es) 2016-05-05
MX359163B true MX359163B (es) 2018-09-18

Family

ID=48874132

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2016000909A MX359163B (es) 2013-07-22 2014-07-18 Reduccion de fallas de filtro peine en mezcla descendente de canales multiples con alineacion de fase adaptativa.

Country Status (18)

Country Link
US (2) US10360918B2 (es)
EP (2) EP2838086A1 (es)
JP (1) JP6279077B2 (es)
KR (2) KR101943601B1 (es)
CN (2) CN105518775B (es)
AR (1) AR097001A1 (es)
AU (1) AU2014295167B2 (es)
BR (1) BR112016001003B1 (es)
CA (1) CA2918874C (es)
ES (1) ES2687952T3 (es)
MX (1) MX359163B (es)
PL (1) PL3025336T3 (es)
PT (1) PT3025336T (es)
RU (1) RU2678161C2 (es)
SG (1) SG11201600393VA (es)
TW (1) TWI560702B (es)
WO (1) WO2015011057A1 (es)
ZA (1) ZA201601112B (es)

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Also Published As

Publication number Publication date
SG11201600393VA (en) 2016-02-26
CN105518775B (zh) 2020-07-17
TWI560702B (en) 2016-12-01
ES2687952T3 (es) 2018-10-30
CN111862997A (zh) 2020-10-30
PT3025336T (pt) 2018-11-19
WO2015011057A1 (en) 2015-01-29
ZA201601112B (en) 2017-08-30
AU2014295167A1 (en) 2016-02-11
US10937435B2 (en) 2021-03-02
JP6279077B2 (ja) 2018-02-14
BR112016001003A8 (pt) 2020-01-07
US10360918B2 (en) 2019-07-23
EP2838086A1 (en) 2015-02-18
KR101835239B1 (ko) 2018-04-19
RU2678161C2 (ru) 2019-01-23
KR101943601B1 (ko) 2019-04-17
JP2016525716A (ja) 2016-08-25
TW201523586A (zh) 2015-06-16
BR112016001003A2 (pt) 2017-07-25
PL3025336T3 (pl) 2019-02-28
US20160133262A1 (en) 2016-05-12
CA2918874A1 (en) 2015-01-29
MX2016000909A (es) 2016-05-05
AR097001A1 (es) 2016-02-10
KR20160033776A (ko) 2016-03-28
CA2918874C (en) 2019-05-28
RU2016105741A (ru) 2017-08-28
BR112016001003B1 (pt) 2022-09-27
AU2014295167B2 (en) 2017-04-13
KR20180027607A (ko) 2018-03-14
EP3025336A1 (en) 2016-06-01
EP3025336B1 (en) 2018-08-08
CN105518775A (zh) 2016-04-20
US20190287542A1 (en) 2019-09-19

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