A projection-correlation algorithm for acoustic echo cancellation in the presence of double talk

Author

Creasy, T. ; Aboulnasr, T.

Author_Institution

Sch. of Inf. Technol. & Eng., Ottawa Univ., Ont., Canada

Volume

1

fYear

2000

fDate

2000

Firstpage

436

Abstract

This paper presents a novel variable-step-size affine projection adaptive algorithm for acoustic echo cancellation. The adaptation rate is controlled by a measure of the correlation between instantaneous and long-term averages of the projection vectors. The proposed algorithm offers excellent robustness against double talk, good initial convergence and tracking ability, and low steady state misadjustment. Simulation results confirming improved performance are provided

Keywords

acoustic correlation; adaptive filters; echo suppression; telephone sets; acoustic echo cancellation; adaptation rate; double talk; initial convergence; instantaneous average; long-term averages; performance; projection vectors; projection-correlation algorithm; robustness; steady state misadjustment; tracking ability; variable-step-size affine projection adaptive algorithm; Acoustic measurements; Adaptive algorithm; Adaptive filters; Convergence; Echo cancellers; Finite impulse response filter; Microphones; Speech enhancement; Telephony; Variable structure systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2000. ICASSP '00. Proceedings. 2000 IEEE International Conference on

Conference_Location

Istanbul

ISSN

1520-6149

Print_ISBN

0-7803-6293-4

Type

conf

DOI

10.1109/ICASSP.2000.862003

Filename

862003