A Noise Compensation LPC Method Based on Pitch Synchronous Analysis for Speech
Liqing Liu, Tetsuya Shimamura · Journal of Signal Processing · 2013
It is well known that linear predictive coding (LPC) is sensitive to additive noise and that the corresponding noise compensation method suffers from poor accuracy of noise power estimation. In this paper, a novel noise compensation LPC method based on pitch synchronous analysis is presented. Using the proposed method, a more accurate estimation of noise power is calculated on each current frame. Experimental results show that the proposed method yields better performance than some conventional LPC analysis methods in the presence of white noise.