Single-channel dereverberation using a non-causal minimum variance distortionless response filter.
This letter presents a single-channel speech dereverberation approach using a non-causal minimum variance distortionless response (MVDR) filter. The non-causal filter is adopted to utilize the additional information of the desired signal that lies in subsequent frames. Note that the desired signal output has minimal distortion due to the introduction of the MVDR criterion. The proposed system further suppresses the late reverberation by employing a statistical reverberant model. Experimental results demonstrate the superiority of the proposed algorithm to conventional approaches.
School of Electrical and Electronic Engineering, Yonsei University, Seoul 120-749, Republic of Korea. earth112@dsp.yonsei.ac.kr
Myung-Suk
MS
Song
Hong-Goo
HG
Kang
D000465:Algorithms; D005583:Fourier Analysis; D006801:Humans; D010470:Perceptual Masking / Q000502:physiology; D013061:Speech Acoustics; D013065:Speech Intelligibility / Q000502:physiology; D013067:Speech Perception / Q000502:physiology*