Evolutionary weight tuning based on diphone pairs for unit selection speech synthesis
Francesc Álías, Xavier Llorà · 2003
Unit selection text-to-speech (TTS) conversion is an ongoing research issue for the speech synthesis community. This paper is focused on tuning the weights involved in the target and the concatenations cost metrics. We propose a method for automatically tuning these weights simultaneously by means of diphone 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 analysis show its good performance in this problem, overcoming some constrains assumed by previous works and being an interesting framework for further investigations.