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Speech & natural language publications January 1, 1994 Conference Paper

Incorporating Linguistic Features in a Hybrid HMM/MLP Speech Recognizer

SRI International January 1, 1994

Abstract

We have developed a hybrid speech recognition system which uses a multilayer perceptron (MLP) to estimate the observation likelihoods associated with the states of a HMM. In this paper, we propose two schemes for incorporating distinctive speech features (sonorant, fricative, nasal, vocalic, and voiced) into the MLP component of our system. We show a small improvement in recognition performance on a 160-word speaker-independent continuous-speech Japanese conference room reservation database. Further experiments simulating an improved distinctive feature classifier indicate that this approach can potentially lead to substantial performance improvements.

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Publication, Speech & natural language publications Conference Paper

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