Non-Uniform Sub-Band Kalman Filtering for Speech Enhancement
نویسندگان
چکیده
In this paper, a novel method for single-channel speech enhancement based on Kalman filtering is proposed. Instead of applying the Kalman algorithm for full-band speech or uniform sub-band speech, speech enhancement is performed by applying the Kalman algorithm to non-uniform sub-band signals obtained from the decomposition of whole-band speech using gammatone filters. Simulation results indicate that in terms of perceptual evaluation speech quality (PESQ), our proposed method shows a relative improvement of 21.4% over the conventional full-band Kalman filtering technique.
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