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Optimal Data Selection for Unit Selection Synthesis

Alan W Black and Kevin A. Lenzo
Carnegie Mellon University and Cepstral, LLC,

This paper was publshied at The 4th ISCA Worskop on Speech Synthesis


In this work, we address the issue of creating a set of utterances with optimal coverage for reliable, high quality concatenative synthesis, whether for general synthesis or domain synthesis. We present an automatic method that takes into account the acoustic distinctions made by a particular speaker and selects prompts from large databases of typical utterances. A general unit selection text-to-speech system created by this process can synthesize any input text, but the output is best for content intended to be similar to that in the database in terms of style, delivery, and coverage.

Alan W Black 2001-08-26