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Improved postfiltering technique for block quantisation of speech

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2 Author(s)
Kaouri, H.A. ; Queen's University of Belfast, Department of Electrical & Electronic Engineering, Belfast, UK ; McCanny, J.V.

A modified comb filtering technique is proposed which can be used to reduce framing noise generated when speech signals are transform-coded or vector-quantised. Application of this filter to 9.6 kbit/s speech in a vector transform coder has been found to significantly improve the perceptual quality of the coded speech.

Published in:

Electronics Letters  (Volume:23 ,  Issue: 24 )