EUROSPEECH 2001 Scandinavia
7th European Conference on Speech Communication and Technology

Aalborg, Denmark
September 3-7, 2001


Experiments with the Philips continuous ASR system on the AURORA noisy digits database

Markus Lieb, Alexander Fischer

Philips Research Labs Aachen, Germany

With this work we evaluate the Philips continuous speech recognition system on the standardized AURORA noisy digit string recognition task. A variety of noise robust algorithms, ranging from spectral subtraction during the feature extraction stage, to adaptation techniques in the HMM-decoding stage, are applied and their effects are presented. Detailed experimental results show the contribution of the single approaches to the overall system performance. By thoroughly combining the best performing of the standard algorithms, we achieve significant improvements for the matched training as well as for the non-matched condition scenarios.

Full Paper

Bibliographic reference.  Lieb, Markus / Fischer, Alexander (2001): "Experiments with the philips continuous ASR system on the AURORA noisy digits database", In EUROSPEECH-2001, 625-628.