Title :
Lattice-ladder structured adaptive decorrelation filtering for co-channel speech separation
Author :
Yen, Kuan-Chieh ; Zhao, Yunxin
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
Abstract :
A lattice-ladder adaptive decorrelation filtering (ADF) algorithm is proposed with the aim of developing a more efficient co-channel speech separation system. It is shown that based on the joint forward and backward linear predictions, a lattice-ladder structure can be derived for ADF. Experimental results show that the proposed algorithm is effective in reducing cross-interference between co-channel speech sources and has better tracking ability on the variations in the acoustic environment compared to the original direct-form ADF algorithm
Keywords :
adaptive filters; adaptive signal processing; cochannel interference; decorrelation; filtering theory; interference suppression; ladder filters; lattice filters; prediction theory; speech processing; acoustic environment; co-channel speech separation; co-channel speech sources; cross-interference reduction; direct-form ADF algorithm; experimental results; filtering algorithm; joint forward/backward linear predictions; lattice-ladder structured adaptive decorrelation filtering; speech processing; tracking; Acoustic signal processing; Acoustic testing; Adaptive filters; Decorrelation; Filtering algorithms; Finite impulse response filter; Signal processing; Signal processing algorithms; Speech processing; Speech recognition;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2000. ICASSP '00. Proceedings. 2000 IEEE International Conference on
Conference_Location :
Istanbul
Print_ISBN :
0-7803-6293-4
DOI :
10.1109/ICASSP.2000.861986
