ATE161376T1 - Verfahren und vorrichtung zur adaptiven akustischen echokompensation - Google Patents

Verfahren und vorrichtung zur adaptiven akustischen echokompensation

Info

Publication number
ATE161376T1
ATE161376T1 AT92114499T AT92114499T ATE161376T1 AT E161376 T1 ATE161376 T1 AT E161376T1 AT 92114499 T AT92114499 T AT 92114499T AT 92114499 T AT92114499 T AT 92114499T AT E161376 T1 ATE161376 T1 AT E161376T1
Authority
AT
Austria
Prior art keywords
filter
iteration
account
takes
generation
Prior art date
Application number
AT92114499T
Other languages
English (en)
Inventor
Borrallo Jose Manuel Paez
Otero Mariano Garcia
Mezcua Belen Ruiz
Original Assignee
Alcatel Standard Electrica
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 Alcatel Standard Electrica filed Critical Alcatel Standard Electrica
Application granted granted Critical
Publication of ATE161376T1 publication Critical patent/ATE161376T1/de

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
AT92114499T 1991-09-10 1992-08-26 Verfahren und vorrichtung zur adaptiven akustischen echokompensation ATE161376T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES09102024A ES2038904B1 (es) 1991-09-10 1991-09-10 Procedimiento y dispositivo de cancelacion adaptativa de ecos acusticos.

Publications (1)

Publication Number Publication Date
ATE161376T1 true ATE161376T1 (de) 1998-01-15

Family

ID=8273490

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92114499T ATE161376T1 (de) 1991-09-10 1992-08-26 Verfahren und vorrichtung zur adaptiven akustischen echokompensation

Country Status (4)

Country Link
EP (1) EP0531796B1 (de)
AT (1) ATE161376T1 (de)
DE (1) DE69223565T2 (de)
ES (1) ES2038904B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2101633B1 (es) * 1994-05-31 1998-03-01 Alcatel Standard Electrica Terminal celular fijo para servicios de telecomunicaciones a dos hilos.
US5535194A (en) * 1994-07-14 1996-07-09 Motorola, Inc. Method and apparatus for echo canceling with double-talk immunity
EP0951798B1 (de) * 1996-04-03 2002-07-03 BRITISH TELECOMMUNICATIONS public limited company Korrektur einer akustischen rückkopplung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4621172A (en) * 1982-12-22 1986-11-04 Nec Corporation Fast convergence method and system for echo canceller
ES2033814T3 (es) * 1986-11-17 1993-04-01 Alcatel N.V. Cancelador de eco ajustable.
NL8701633A (nl) * 1987-07-10 1989-02-01 Philips Nv Digitale echocompensator.
DE3887057T2 (de) * 1987-10-02 1994-08-25 Advanced Micro Devices Inc Adaptiver Echokompensator mit Doppel-Spracherkennung.
SE461308B (sv) * 1988-06-03 1990-01-29 Ericsson Telefon Ab L M Adaptivt digitalt filter omfattande en icke rekursiv del och en rekursiv del
IT1228106B (it) * 1988-12-21 1991-05-28 Sits Soc It Telecom Siemens Procedimento e dispositivo per la cancellazione numerica adattativa dell'eco generato in collegamenti telefonici con caratteristiche varianti nel tempo

Also Published As

Publication number Publication date
EP0531796A3 (en) 1993-10-20
EP0531796B1 (de) 1997-12-17
DE69223565T2 (de) 1998-06-25
EP0531796A2 (de) 1993-03-17
ES2038904A2 (es) 1993-08-01
ES2038904R (de) 1994-07-01
ES2038904B1 (es) 1995-01-16
DE69223565D1 (de) 1998-01-29

Similar Documents

Publication Publication Date Title
EP1097562B1 (de) Adaptiver filter und akustischer echokompensator mit demselben
DK0829147T3 (da) System og fremgangsmåde til undgåelse af falsk konvergens ved forekomst af toner i en tidsdomæneekkoelimineringsproces
DE59510700D1 (de) Verfahren zur adaptiven Echokompensation
CA2142147A1 (en) Echo Cancelling Method and Apparatus Using Fast Projection Scheme
ITMI920398A1 (it) Procedimento e dispositivo per la cancellazione numerica adattativa dell'eco generato in collegamenti telefonici non stazionari
CA2267411A1 (en) Echo canceller with silence detection
JPH06338827A (ja) エコー制御装置
EP3353781B1 (de) Vorrichtung und verfahren zur erzeugung von komfortgeräuschen
US10636435B1 (en) Acoustic echo cancellation using low-frequency double talk detection
ATE161376T1 (de) Verfahren und vorrichtung zur adaptiven akustischen echokompensation
GB2349259A (en) Speech processing apparatus
EP0843455A3 (de) Verfahren und Anordnung zur adaptiven Echokompensation
US7773742B2 (en) Echo canceller
DE69232501D1 (de) Vorrichtung zur reduzierung der gefahr unerwünschter parameterabweichungen eines adaptiven, zur echo unterdrückung verwendeten filter
Heitkamper et al. Adaptive gain control for speech quality improvement and echo suppression
IT1228106B (it) Procedimento e dispositivo per la cancellazione numerica adattativa dell'eco generato in collegamenti telefonici con caratteristiche varianti nel tempo
JP3609611B2 (ja) エコー除去方法およびエコーキャンセラ
JP2000252884A (ja) 適応フィルタ学習方式
EP1232645B1 (de) Echounterdrückung
JP3217614B2 (ja) 音響反響除去装置
Woudenberg et al. A block least squares approach to acoustic echo cancellation
JP3121969B2 (ja) 音響反響除去装置
Raman et al. Fast echo cancellation in a voice-processing system
KR960016294A (ko) 데이타 송수신 장치
JPH07273690A (ja) 音響反響除去装置

Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee