Single Channel Speech Enhancement Based on Perceptual Frequency-Weighting


IEICE TRANSACTIONS on Information and Systems   Vol.E90-D   No.6   pp.998-1001
Publication Date: 2007/06/01
Online ISSN: 1745-1361
DOI: 10.1093/ietisy/e90-d.6.998
Print ISSN: 0916-8532
Type of Manuscript: LETTER
Category: Speech and Hearing
speech enhancement,  perceptual weighting,  masking property,  noise reduction,  spectral subtraction,  

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The present paper describes a quality enhancement of speech corrupted by additive background noise in a single channel system. The proposed approach is based on the introduction of perceptual criteria using a frequency-weighting filter in a subtractive-type enhancement process. This newly developed algorithm allows for an automatic adaptation in the time and frequency of the enhancement system and finds a suitable noise estimate according to the frequency of the corrupted speech. Experimental results show that the proposed approach can efficiently remove additive noise related to various types of noise corruption.