Title :
Design of echo canceler with frequency domain ECLMS algorithm
Author :
Asharif, Mohammad Rexa ; Shiroma, Motoki ; Yamashita, Katsumi
Author_Institution :
Dept. of Inf. Eng., Ryukyus Univ., Okinawa, Japan
Abstract :
The correlation LMS (CLMS) algorithm and its extended version (ECLMS) have been proposed to solve the double-talk problem in the echo canceling for the teleconference system by authors previously. However, the computational load of the ECLMS is too large to be implemented. Here, we propose a new fast implementation of the ECLMS algorithm using frequency domain based on time lag of the correlation function. Also, we defined initialization and normalization methods. The performance has been verified by computer simulation using a speech signal. The computational complexity of the proposed algorithm is reduced to only 2.7% of the ECLMS algorithm
Keywords :
audio signal processing; computational complexity; correlation methods; echo suppression; frequency-domain analysis; least mean squares methods; teleconferencing; CLMS; computational complexity; computational load; correlation LMS; correlation function; double-talk problem; echo canceler; frequency domain ECLMS algorithm; speech signal; teleconference system; time lag; Algorithm design and analysis; Computational complexity; Computer simulation; Degradation; Finite impulse response filter; Frequency domain analysis; Least squares approximation; Microphones; Speech; Teleconferencing;
Conference_Titel :
Global Telecommunications Conference, 2000. GLOBECOM '00. IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-6451-1
DOI :
10.1109/GLOCOM.2000.891917
