Conference paper
Feature space gaussianization
George Saon, Satya Dharanipragada, et al.
ICASSP 2004
This paper describes a robust feature extraction method for continuous speech recognition. Central to the method is the Minimum Variance Distortionless Response (MVDR) method of spectrum estimation and a feature trajectory smoothing technique for reducing the variance in the feature vectors. The above method, when evaluated on continuous speech recognition tasks in a stationary and moving car, gave an average relative improvement in WER of greater than 30%.
George Saon, Satya Dharanipragada, et al.
ICASSP 2004
Sabine Deligne, Satya Dharanipragada
ICASSP 2004
Peder A. Olsen, Satya Dharanipragada
INTERSPEECH - Eurospeech 2003
Satya Dharanipragada, Karthik Visweswariah
IEEE Transactions on Audio, Speech and Language Processing