Title :
Experimental investigation of delayed instantaneous demixer for speech enhancement
Author :
Xiang, Yong ; Hua, Yingbo ; An, Senjian ; Acero, Alex
Author_Institution :
Dept. of Electr. & Electron. Eng., Melbourne Univ., Parkville, Vic., Australia
Abstract :
This paper presents a delayed instantaneous demixer (DID) for speech signal separation from real recordings. Based on the fact that the original signals are colored and mutually uncorrelated, a simple algorithm is derived to estimate the parameters of the demixer. This algorithm consists of two parts: a grid searching method to estimate time delays and an alternating projection method to estimate gain coefficients. Experimental result demonstrates the performance of the model and the algorithm
Keywords :
FIR filters; MIMO systems; delay estimation; search problems; speech enhancement; DID; alternating projection method; colored mutually uncorrelated speech signal; delayed instantaneous demixer; gain coefficients; grid searching method; speech enhancement; speech signal separation; time delays; Acoustic testing; Australia; Convolution; Delay estimation; Finite impulse response filter; Higher order statistics; MIMO; Signal processing; Source separation; Speech enhancement;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on
Conference_Location :
Salt Lake City, UT
Print_ISBN :
0-7803-7041-4
DOI :
10.1109/ICASSP.2001.940911
