A variable step-size normalized sign algorithm for acoustic echo cancelation

Author

Shao, Tiange ; Zheng, Yahong Rosa ; Benesty, Jacob

Author_Institution

Dept. of Electr. & Comput. Eng., Missouri Univ. of Sci. & Technol., Rolla, MO, USA

fYear

2010

fDate

14-19 March 2010

Firstpage

333

Lastpage

336

Abstract

A variable step size normalized sign algorithm (VSS-NSA) is proposed, for acoustic echo cancelation, which adjusts its step size automatically by matching the L₁ norm of the a posteriori error to that of the background noise plus near-end signal. Simulation results show that the new algorithm combined with double-talk detection outperforms the dual sign algorithm (DSA) and the normalized triple-state sign algorithm (NTSSA) in terms of convergence rate and stability.

Keywords

acoustic noise; acoustic signal processing; convergence; echo; echo suppression; stability; acoustic echo cancellation; background noise; convergence rate; double-talk detection; dual sign algorithm; near-end signal; normalized triple-state sign algorithm; posteriori error; stability; variable step-size normalized sign algorithm; Acoustic signal detection; Acoustical engineering; Background noise; Change detection algorithms; Computer errors; Convergence; Noise robustness; Speech; Stability; Steady-state; double talk; echo canceler; robust adaptive filter; sign algorithm; variable step size;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on

Conference_Location

Dallas, TX

ISSN

1520-6149

Print_ISBN

978-1-4244-4295-9

Electronic_ISBN

1520-6149

Type

conf

DOI

10.1109/ICASSP.2010.5495873

Filename

5495873