Acoustic unit discovery and pronunciation generation from a grapheme-based lexicon

  title={Acoustic unit discovery and pronunciation generation from a grapheme-based lexicon},
  author={William Hartmann and Anindya Roy and Lori Lamel and Jean-Luc Gauvain},
  journal={2013 IEEE Workshop on Automatic Speech Recognition and Understanding},
We present a framework for discovering acoustic units and generating an associated pronunciation lexicon from an initial grapheme-based recognition system. Our approach consists of two distinct contributions. First, context-dependent grapheme models are clustered using a spectral clustering approach to create a set of phone-like acoustic units. Next, we transform the pronunciation lexicon using a statistical machine translation-based approach. Pronunciation hypotheses generated from a decoding… CONTINUE READING
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