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2003 018

Evolutionary Weight Tuning for Unit Selection Based on Diphone Pairs

Francesc Alías and Xavier LlorĂ  (2003)
TR No.: 2003018 | Download PDF | Download PS

Abstract:
Unit selection text-to-speech (TTS) conversion is an ongoing research for the speech synthesis community. This paper is focused on tuning the weights involved in the target and concatenation cost metrics. We propose a method for automatically adjusting these weights simultaneously by means of diphone and triphone pairs. This method is based on techniques provided by the evolutionary computation community, taking advantage of their robustness in noisy domains. The experiments and their analyses demonstrate its good performance in this problem, thus, overcoming some constraints assumed by previous works and leading to a new interesting framework for further investigations.

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