Title :
Robustness of signal correlation
Author :
Ching, W.S. ; Toh, P.S.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
Abstract :
The robustness of signal correlation is of paramount importance if signal correlation is to be used effectively in the real world. The paper examines the robustness of speech correlation based on the average correlation between adjacent speech frames. The effects of the speech frame size, the amount of amplitude distortion and the amount of gaussian noise on the correlation property are studied. Simulation results show that the optimum speech analysis frame size is in the region of 15 to 20 msec. The speech correlation property is found to be robust even when the amplitude of the speech signal is infinitely clipped. It can also withstand fairly high gaussian noise and has numerous applications in the field of speech coding, speech enhancement and speech analysis.<>
Keywords :
correlation methods; random noise; speech analysis and processing; speech coding; amplitude distortion; correlation property; gaussian noise; optimum speech analysis frame size; robustness; signal correlation; speech analysis; speech coding; speech correlation; speech enhancement; speech frames; Application software; Computer vision; Digital signal processing; Euclidean distance; Gaussian noise; Noise robustness; Nonlinear distortion; Signal processing; Speech analysis; Speech enhancement;
Conference_Titel :
TENCON '93. Proceedings. Computer, Communication, Control and Power Engineering.1993 IEEE Region 10 Conference on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-1233-3
DOI :
10.1109/TENCON.1993.327976
