EUROSPEECH 2003 - INTERSPEECH 2003 8th European Conference on Speech Communication and Technology Geneva, Switzerland September 1-4, 2003

Distributed Speech Recognition on the WSJ Task

Jan Stadermann, Gerhard Rigoll

Technische Universitaet Muenchen, Germany

A comparison of traditional continuous speech recognizers with hybrid tied-posterior systems in distributed environments is presented for the first time on a challenging medium vocabulary task. We show how monophone and triphone systems are affected if speech features are sent over a wireless channel with limited bandwidth. The algorithms are evaluated on the Wall Street Journal database (WSJ0) and the results show that our monophone tied-posterior recognizer outperforms the traditional methods on this task by a dramatic reduction of the performance loss by a factor of 4 compared to non-distributed recognizers.

Full Paper

Bibliographic reference.  Stadermann, Jan / Rigoll, Gerhard (2003): "Distributed speech recognition on the WSJ task", In EUROSPEECH-2003, 1029-1032.