Blind dereverberation using correlation coefficients considering periodicity of voiced speech

In this paper, we propose a blind frame-by-frame dereverberation using correlation coefficients considering periodicity of voiced speech. In the proposed method, the reference signal is derived by reducing speech periodicity from recovered signal of previous frame. The reference signal is used in order to estimate the impulse response in each frame. The recovered signal is obtained by using the estimated impulse response. From the investigation of performance evaluation, we show the proposed method is more effective than the conventional method in reducing reverberation without introducing speech distortion