Robust speech feature extraction by growth transformation in reproducing kernel Hilbert space

Shantanu Chakrabartty, Yunbin Deng, Gert Cauwenberghs

Research output: Contribution to journalConference articlepeer-review

5 Scopus citations

Abstract

A robust speech feature extraction procedure, by kernel regression nonlinear predictive coding, is presented. Features maximally insensitive to additive noise are obtained by growth transformation of regression functions spanning a Reproducing Kernel Hubert Space (RKHS). Experiments on TIDIGIT demonstrate consistent robustness of the new features to noise of varying statistics, yielding significant improvements in digit recognition accuracy over identical models trained using Mel-scale cepstral features and evaluated at noise levels between 0 and 30 dB SNR.

Original languageEnglish
Pages (from-to)I133-I136
JournalICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume1
StatePublished - 2004
EventProceedings - IEEE International Conference on Acoustics, Speech, and Signal Processing - Montreal, Que, Canada
Duration: May 17 2004May 21 2004

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