Abstract:
This paper introduces a novel speech enhancement system based on sub-band wiener filter with pitch synchronous analysis. The perceptual filter bank provides a good audito...Show MoreMetadata
Abstract:
This paper introduces a novel speech enhancement system based on sub-band wiener filter with pitch synchronous analysis. The perceptual filter bank provides a good auditory representation, good perceptual quality of speech. Sub-band wiener filter based Pitch synchronous analysis reduces drawbacks of fixed window shift. To increase the inter frame similarities the shift of analysis window is based on pitch period. The pitch is extracted by using clipping level method. Further, to reduce noise each sub-band is wiener filtered using a priori SNR with adaptive parameter. Wavelets transform based wiener filter approach works well than DCT based approach. Objective (SNR, segSNR, LLR, LSD, IS,WSS) experiments prove that the new speech enhancement system is capable of significant noise reduction.
Published in: 2013 International Conference on Advances in Computing, Communications and Informatics (ICACCI)
Date of Conference: 22-25 August 2013
Date Added to IEEE Xplore: 21 October 2013
ISBN Information: