Speech recognition in impulsive noise

Vaseghi, S. V. and Milner, B. P. (1995) Speech recognition in impulsive noise. In: IEEE International Conference on Acoustics Speech Signal Processing (ICASSP), 1995-05-09 - 1995-05-12.

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Abstract

This paper presents experimental results on the use of noise compensation schemes with hidden Markov model (HMM) speech recognition systems operating in the presence of impulsive noise. A measure of signal to impulsive noise ratio is introduced, and the effects of varying the percentage of impulsive noise contamination, and the power of impulsive noise, on speech recognition are investigated. For the modelling of an impulsive noise process, an amplitude-modulated binary sequence model and a binary-state HMM are considered. For impulsive noise compensation a front-end method and a noise-adaptive method are evaluated. Experiments demonstrate that the noise compensation methods achieve a substantial improvement in speech recognition accuracy across a wide range of signal to impulsive noise ratios.

Item Type:	Conference or Workshop Item (Other)
Faculty \ School:	Faculty of Science > School of Computing Sciences
UEA Research Groups:	Faculty of Science > Research Groups > Interactive Graphics and Audio Faculty of Science > Research Groups > Smart Emerging Technologies
Depositing User:	EPrints Services
Date Deposited:	01 Oct 2010 13:41
Last Modified:	24 Sep 2024 07:17
URI:	https://ueaeprints.uea.ac.uk/id/eprint/2989
DOI:	10.1109/ICASSP.1995.479622

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