Title :
A new IIR adaptive echo canceler: GIVE
Author :
Chao, Jinhui ; Kawabe, Shinobu ; Tsujii, Shigeo
Author_Institution :
Dept. of Electr. & Electron. Eng., Chuo Univ., Tokyo, Japan
Abstract :
A novel infinite impulse response (IIR) adaptive gradient instrumental variable echo canceler (GIVE) is presented. Its features include adaptive controllability during double-talk periods, guarantee of global convergence; and low computation cost. The optimum step size for GIVE and three suboptimum algorithms are proposed to accelerate convergence and reduce misadjustment. A simple recipe for the stability guarantee of an IIR filter and a configuration of GIVE applicable to closed-loop systems are also presented
Keywords :
adaptive filters; digital filters; echo suppression; GIVE; IIR adaptive echo canceler; adaptive controllability; adaptive gradient instrumental variable echo canceler; double-talk; global convergence; low computation cost; optimum step size; Acoustic devices; Acoustic signal detection; Adaptive filters; Convergence; Costs; Equations; Finite impulse response filter; IIR filters; Reverberation; Robust stability;
Conference_Titel :
Systems Engineering, 1992., IEEE International Conference on
Conference_Location :
Kobe
Print_ISBN :
0-7803-0734-8
DOI :
10.1109/ICSYSE.1992.236968
