Title :
The dynamic LMS for line echo cancellation
Author :
Chang, Shun-Chieh ; Hwang, Shaw-Hwa
Author_Institution :
Dept. of Electr. Eng., Nat. Taipei Univ. of Technol., Taipei
Abstract :
In this paper, the dynamic least mean square(DLMS) algorithm is firstly proposed to reduce the computation of LMS. In the DLMS architecture, the redundant coefficients of LMS can be grouped automatically. The coefficient number of filter and the computation are reduced. Moreover, two modes of DLMS algorithm are employed analyzed. The DLMS-based line echo cancellation (LEC) is employed to evaluate the performance of DLMS. The experimental results confirm the good performance in DLMS algorithm. Moreover, the performance of mode-II is superior to the mode-I. Moreover than 44% of coefficient saving of LMS is achieved.
Keywords :
audio signal processing; echo suppression; least mean squares methods; speech processing; dynamic least mean square algorithm; line echo cancellation; Adaptive algorithm; Adaptive filters; Algorithm design and analysis; Computational efficiency; Computer architecture; Delay lines; Echo cancellers; Finite impulse response filter; Least squares approximation; Speech; DLMS; Dynamic LMS; Echo cancellation; LEC; LMS;
Conference_Titel :
Wireless and Optical Communications Networks, 2009. WOCN '09. IFIP International Conference on
Conference_Location :
Cairo
Print_ISBN :
978-1-4244-4704-6
Electronic_ISBN :
978-1-4244-3474-9
DOI :
10.1109/WOCN.2009.5010522
