White Papers
The Influence of Speech Coding on Recognition Performance in Telecommunication Networks
Overview The influence of encoding and decoding speech on automatic speech recognition is investigated in this paper with respect to applications in today's telecommunication networks. The deterioration of recognition performance is presented for several coding schemes in GSM and future mobile networks. The extraction of acoustic features for the recognition is done with the already standardized ETSI frontend and with the advanced robust frontend whose standardization is almost finished. The Aurora2 experiment for recognizing the noisy TIDigits is taken as experimental basis. Finally recognition results are compared to results of subjective listening tests that have been performed for the characterisation of these speech coding schemes.
| Publisher | Niederrhein University of Applied Sciences | File Format | |
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| Date Published | September 2002 | Downloads | 2 |
| Format | White Papers | ||
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