IEICE Transactions on Information and Systems
Online ISSN : 1745-1361
Print ISSN : 0916-8532
Special Section on Recent Advances in Multimedia Signal Processing Techniques and Applications
Selective Gammatone Envelope Feature for Robust Sound Event Recognition
Yi Ren LENGHuy Dat TRANNorihide KITAOKAHaizhou LI
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2012 Volume E95.D Issue 5 Pages 1229-1237

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Abstract

Conventional features for Automatic Speech Recognition and Sound Event Recognition such as Mel-Frequency Cepstral Coefficients (MFCCs) have been shown to perform poorly in noisy conditions. We introduce an auditory feature based on the gammatone filterbank, the Selective Gammatone Envelope Feature (SGEF), for Robust Sound Event Recognition where channel selection and the filterbank envelope is used to reduce the effect of noise for specific noise environments. In the experiments with Hidden Markov Model (HMM) recognizers, we shall show that our feature outperforms MFCCs significantly in four different noisy environments at various signal-to-noise ratios.

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© 2012 The Institute of Electronics, Information and Communication Engineers
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