AR083494A1 - Aparato y metodo de supresion de eco que comprende el modelado de componentes de reverberacion tardia - Google Patents

Aparato y metodo de supresion de eco que comprende el modelado de componentes de reverberacion tardia

Info

Publication number
AR083494A1
AR083494A1 ARP110103884A ARP110103884A AR083494A1 AR 083494 A1 AR083494 A1 AR 083494A1 AR P110103884 A ARP110103884 A AR P110103884A AR P110103884 A ARP110103884 A AR P110103884A AR 083494 A1 AR083494 A1 AR 083494A1
Authority
AR
Argentina
Prior art keywords
echo
weakening
modeling
filter
eco
Prior art date
Application number
ARP110103884A
Other languages
English (en)
Original Assignee
Fraunhofer Ges Zur Fa & Ndash Rderung Der Angewandten Forschung E V
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 Zur Fa & Ndash Rderung Der Angewandten Forschung E V filed Critical Fraunhofer Ges Zur Fa & Ndash Rderung Der Angewandten Forschung E V
Publication of AR083494A1 publication Critical patent/AR083494A1/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/085—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using digital 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
    • 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
    • G10L2021/02082—Noise filtering the noise being echo, reverberation of the speech

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Telephone Function (AREA)

Abstract

Se describe un aparato (200) para computar los coeficientes de filtro (H[k,m]) para un filtro adaptativo (210). El filtro adaptativo se utiliza para filtrar una señal de micrófono (140, 430) a fin de suprimir un eco debido a una señal de altavoz (130, 420). El aparato 200 comprende: un medio de modelado de debilitamiento de eco (465) para modelar un comportamiento de debilitamiento de un entorno acústico (120) y para obtener un composiciones parámetro de debilitamiento de eco (t; am); y un medio de cómputo (270; 370) para computar los coeficientes de filtro (H[k,m]) del filtro adaptativo (210) sobre la base del parámetro de debilitamiento de eco (t; am). Un método correspondiente comprende obtener parámetros de debilitamiento de eco (t; Ĝ[k,m]; am) determinados por medio de un medio de modelado de debilitamiento de eco (465); y computar los coeficientes de filtro (H[k,m]) del filtro adaptativo (210) sobre la base de los parámetros de debilitamiento de eco (t; am).
ARP110103884A 2010-10-25 2011-10-20 Aparato y metodo de supresion de eco que comprende el modelado de componentes de reverberacion tardia AR083494A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US40624610P 2010-10-25 2010-10-25
EP10194586A EP2444967A1 (en) 2010-10-25 2010-12-10 Echo suppression comprising modeling of late reverberation components

Publications (1)

Publication Number Publication Date
AR083494A1 true AR083494A1 (es) 2013-02-27

Family

ID=43706403

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP110103884A AR083494A1 (es) 2010-10-25 2011-10-20 Aparato y metodo de supresion de eco que comprende el modelado de componentes de reverberacion tardia

Country Status (15)

Country Link
US (1) US9699552B2 (es)
EP (2) EP2444967A1 (es)
JP (1) JP5671147B2 (es)
KR (1) KR101573121B1 (es)
CN (1) CN103262163B (es)
AR (1) AR083494A1 (es)
BR (1) BR112013010065B1 (es)
CA (1) CA2815577C (es)
ES (1) ES2528043T3 (es)
HK (1) HK1189312A1 (es)
MX (1) MX2013004602A (es)
PL (1) PL2633522T3 (es)
RU (1) RU2569006C2 (es)
TW (1) TWI463488B (es)
WO (1) WO2012055687A1 (es)

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Also Published As

Publication number Publication date
TW201225067A (en) 2012-06-16
EP2444967A1 (en) 2012-04-25
KR101573121B1 (ko) 2015-12-11
HK1189312A1 (en) 2014-05-30
CN103262163B (zh) 2016-01-20
BR112013010065A2 (pt) 2020-10-06
BR112013010065B1 (pt) 2022-03-08
WO2012055687A1 (en) 2012-05-03
CN103262163A (zh) 2013-08-21
RU2013123696A (ru) 2014-12-10
MX2013004602A (es) 2013-12-02
TWI463488B (zh) 2014-12-01
ES2528043T3 (es) 2015-02-03
EP2633522B1 (en) 2014-12-10
KR20130117795A (ko) 2013-10-28
JP5671147B2 (ja) 2015-02-18
US9699552B2 (en) 2017-07-04
AU2011322792B2 (en) 2015-11-12
CA2815577A1 (en) 2012-05-03
PL2633522T3 (pl) 2015-05-29
CA2815577C (en) 2017-03-14
US20130230184A1 (en) 2013-09-05
JP2014502074A (ja) 2014-01-23
AU2011322792A1 (en) 2013-05-30
EP2633522A1 (en) 2013-09-04
RU2569006C2 (ru) 2015-11-20

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