In this work, we studied the synthesis of Swiss German speech using different Text-to-Speech (TTS) models. We evaluated the TTS models on three corpora, and we found, that VITS models performed best, hence, using them for further testing. We also introduce a new method to evaluate TTS models by letting the discriminator of a trained vocoder GAN model predict whether a given waveform is human or synthesized. In summary, our best model delivers speech synthesis for different Swiss German dialects with previously unachieved quality.
@article{arxiv.2305.19750,
title = {Text-to-Speech Pipeline for Swiss German -- A comparison},
author = {Tobias Bollinger and Jan Deriu and Manfred Vogel},
journal= {arXiv preprint arXiv:2305.19750},
year = {2023}
}