Guided-TTS 2: A Diffusion Model for High-quality Adaptive Text-to-Speech with Untranscribed Data

• URL: http://arxiv.org/abs/2205.15370v1
• Date: Mon, 30 May 2022 18:30:20 GMT
• Title: Guided-TTS 2: A Diffusion Model for High-quality Adaptive Text-to-Speech with Untranscribed Data
• Authors: Sungwon Kim, Heeseung Kim and Sungroh Yoon
• Abstract summary: We propose Guided-TTS 2, a diffusion-based generative model for high-quality adaptive TTS using untranscribed data. We train the speaker-conditional diffusion model on large-scale untranscribed datasets for a classifier-free guidance method. We demonstrate that Guided-TTS 2 shows comparable performance to high-quality single-speaker TTS baselines in terms of speech quality and speaker similarity with only a tensecond untranscribed data.
• Score: 25.709370310448328
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We propose Guided-TTS 2, a diffusion-based generative model for high-quality adaptive TTS using untranscribed data. Guided-TTS 2 combines a speaker-conditional diffusion model with a speaker-dependent phoneme classifier for adaptive text-to-speech. We train the speaker-conditional diffusion model on large-scale untranscribed datasets for a classifier-free guidance method and further fine-tune the diffusion model on the reference speech of the target speaker for adaptation, which only takes 40 seconds. We demonstrate that Guided-TTS 2 shows comparable performance to high-quality single-speaker TTS baselines in terms of speech quality and speaker similarity with only a ten-second untranscribed data. We further show that Guided-TTS 2 outperforms adaptive TTS baselines on multi-speaker datasets even with a zero-shot adaptation setting. Guided-TTS 2 can adapt to a wide range of voices only using untranscribed speech, which enables adaptive TTS with the voice of non-human characters such as Gollum in \textit{"The Lord of the Rings"}.

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