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MX2015011570A - Aparato y metodo para la descomposicion directa-ambiental de multicanal para el procesamiento de señales de audio. - Google Patents

Aparato y metodo para la descomposicion directa-ambiental de multicanal para el procesamiento de señales de audio.

Info

Publication number
MX2015011570A
MX2015011570A MX2015011570A MX2015011570A MX2015011570A MX 2015011570 A MX2015011570 A MX 2015011570A MX 2015011570 A MX2015011570 A MX 2015011570A MX 2015011570 A MX2015011570 A MX 2015011570A MX 2015011570 A MX2015011570 A MX 2015011570A
Authority
MX
Mexico
Prior art keywords
spectral density
power spectral
density information
channel signals
audio input
Prior art date
Application number
MX2015011570A
Other languages
English (en)
Other versions
MX354633B (es
Inventor
Christian Uhle
Emanuel Habets
Patrick Gampp
Michael Kratz
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 MX2015011570A publication Critical patent/MX2015011570A/es
Publication of MX354633B publication Critical patent/MX354633B/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • 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
    • 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
    • G10L21/028—Voice signal separating using properties of sound source
    • 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
    • G10L25/03—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
    • 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
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/21—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 power information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (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)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)

Abstract

Se da a conocer un aparato para generar una o más señales de canal de salida de audio dependiendo de dos o más señales de canal de entrada de audio. Cada una de las dos o más señales de canal de entrada de audio comprende porciones de señal directa y porciones de señal ambiental. El aparato comprende una unidad de determinación de filtros (110) para determinar un filtro mediante la estimación de una primera información de densidad espectral de potencia y mediante la estimación de una segunda información de densidad espectral de potencia. Asimismo, el aparato comprende un procesador de señales (120) para generar una o más señales de canal de salida de audio mediante la aplicación del filtro a las dos o más señales de canal de entrada de audio. La primera información de densidad espectral de potencia indica la información de densidad espectral de potencia sobre las dos o más señales de canal de entrada de audio y la segunda información de densidad espectral de potencia indica la información de densidad espectral de potencia sobre las porciones de señal ambiental de las dos o más señales de canal de entrada de audio. O bien la primera información de densidad espectral de potencia indica la información de densidad espectral de potencia sobre las dos o más señales de canal de entrada de audio y la segunda información de densidad espectral de potencia indica la información de densidad espectral de potencia sobre las porciones de señal directa de las dos o más señales de canal de entrada de audio. O bien la primera información de densidad espectral de potencia indica la información de densidad espectral de potencia sobre las porciones de señal directa de las dos o más señales de canal de entrada de audio y la segunda información de densidad espectral de potencia indica la información de densidad espectral de potencia sobre las porciones de señal ambiental de las dos o más señales de canal de entrada de audio.
MX2015011570A 2013-03-05 2013-10-23 Aparato y metodo para la descomposicion directa-ambiental de multicanal para el procesamiento de señales de audio. MX354633B (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361772708P 2013-03-05 2013-03-05
PCT/EP2013/072170 WO2014135235A1 (en) 2013-03-05 2013-10-23 Apparatus and method for multichannel direct-ambient decomposition for audio signal processing

Publications (2)

Publication Number Publication Date
MX2015011570A true MX2015011570A (es) 2015-12-09
MX354633B MX354633B (es) 2018-03-14

Family

ID=49552336

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2015011570A MX354633B (es) 2013-03-05 2013-10-23 Aparato y metodo para la descomposicion directa-ambiental de multicanal para el procesamiento de señales de audio.

Country Status (17)

Country Link
US (1) US10395660B2 (es)
EP (1) EP2965540B1 (es)
JP (2) JP6385376B2 (es)
KR (1) KR101984115B1 (es)
CN (1) CN105409247B (es)
AR (1) AR095026A1 (es)
AU (1) AU2013380608B2 (es)
BR (1) BR112015021520B1 (es)
CA (1) CA2903900C (es)
ES (1) ES2742853T3 (es)
MX (1) MX354633B (es)
MY (1) MY179136A (es)
PL (1) PL2965540T3 (es)
RU (1) RU2650026C2 (es)
SG (1) SG11201507066PA (es)
TW (1) TWI639347B (es)
WO (1) WO2014135235A1 (es)

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US9769586B2 (en) 2013-05-29 2017-09-19 Qualcomm Incorporated Performing order reduction with respect to higher order ambisonic coefficients
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US10770087B2 (en) 2014-05-16 2020-09-08 Qualcomm Incorporated Selecting codebooks for coding vectors decomposed from higher-order ambisonic audio signals
US9620137B2 (en) 2014-05-16 2017-04-11 Qualcomm Incorporated Determining between scalar and vector quantization in higher order ambisonic coefficients
US9852737B2 (en) 2014-05-16 2017-12-26 Qualcomm Incorporated Coding vectors decomposed from higher-order ambisonics audio signals
US9747910B2 (en) 2014-09-26 2017-08-29 Qualcomm Incorporated Switching between predictive and non-predictive quantization techniques in a higher order ambisonics (HOA) framework
CN105992120B (zh) 2015-02-09 2019-12-31 杜比实验室特许公司 音频信号的上混音
EP3067885A1 (en) 2015-03-09 2016-09-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for encoding or decoding a multi-channel signal
WO2016156237A1 (en) 2015-03-27 2016-10-06 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for processing stereo signals for reproduction in cars to achieve individual three-dimensional sound by frontal loudspeakers
CN106297813A (zh) * 2015-05-28 2017-01-04 杜比实验室特许公司 分离的音频分析和处理
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US10796704B2 (en) 2018-08-17 2020-10-06 Dts, Inc. Spatial audio signal decoder
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CN109036455B (zh) * 2018-09-17 2020-11-06 中科上声（苏州）电子有限公司 直达声与背景声提取方法、扬声器系统及其声重放方法
EP3671739A1 (en) * 2018-12-21 2020-06-24 FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. Apparatus and method for source separation using an estimation and control of sound quality
WO2020247033A1 (en) * 2019-06-06 2020-12-10 Dts, Inc. Hybrid spatial audio decoder
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Also Published As

Publication number Publication date
US10395660B2 (en) 2019-08-27
US20150380002A1 (en) 2015-12-31
JP2018036666A (ja) 2018-03-08
HK1219378A1 (en) 2017-03-31
KR101984115B1 (ko) 2019-05-31
MX354633B (es) 2018-03-14
KR20150132223A (ko) 2015-11-25
BR112015021520A2 (pt) 2017-08-22
AR095026A1 (es) 2015-09-16
TWI639347B (zh) 2018-10-21
CA2903900C (en) 2018-06-05
JP6385376B2 (ja) 2018-09-05
CN105409247B (zh) 2020-12-29
WO2014135235A1 (en) 2014-09-12
CN105409247A (zh) 2016-03-16
PL2965540T3 (pl) 2019-11-29
EP2965540B1 (en) 2019-05-22
MY179136A (en) 2020-10-28
TW201444383A (zh) 2014-11-16
RU2650026C2 (ru) 2018-04-06
RU2015141871A (ru) 2017-04-07
AU2013380608B2 (en) 2017-04-20
AU2013380608A1 (en) 2015-10-29
JP2016513814A (ja) 2016-05-16
ES2742853T3 (es) 2020-02-17
EP2965540A1 (en) 2016-01-13
CA2903900A1 (en) 2014-09-12
SG11201507066PA (en) 2015-10-29
BR112015021520B1 (pt) 2021-07-13
JP6637014B2 (ja) 2020-01-29

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