Title :
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
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;
Conference_Titel :
Acoustics Speech and Signal Processing (ICASSP), 2010 IEEE International Conference on
Conference_Location :
Dallas, TX
Print_ISBN :
978-1-4244-4295-9
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2010.5495873
