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Fine-grained style control in Transformer-based Text-to-speech Synthesis

2021-10-12 19:50:02
Li-Wei Chen, Alexander Rudnicky
arXiv_CL
           
Abstract

In this paper, we present a novel architecture to realize fine-grained style control on the transformer-based text-to-speech synthesis (TransformerTTS). Specifically, we model the speaking style by extracting a time sequence of local style tokens (LST) from the reference speech. The existing content encoder in TransformerTTS is then replaced by our designed cross-attention blocks for fusion and alignment between content and style. As the fusion is performed along with the skip connection, our cross-attention block provides a good inductive bias to gradually infuse the phoneme representation with a given style. Additionally, we prevent the style embedding from encoding linguistic content by randomly truncating LST during training and using wav2vec 2.0 features. Experiments show that with fine-grained style control, our system performs better in terms of naturalness, intelligibility, and style transferability. Our code and samples are publicly available.

Abstract (translated)

URL

https://arxiv.org/abs/2110.06306

PDF

https://arxiv.org/pdf/2110.06306.pdf

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