Diff-TTSG: Denoising probabilistic integrated speech and gesture synthesis

• URL: http://arxiv.org/abs/2306.09417v3
• Date: Wed, 9 Aug 2023 12:41:48 GMT
• Title: Diff-TTSG: Denoising probabilistic integrated speech and gesture synthesis
• Authors: Shivam Mehta, Siyang Wang, Simon Alexanderson, Jonas Beskow, \'Eva Sz\'ekely, Gustav Eje Henter
• Abstract summary: We present the first diffusion-based probabilistic model, called Diff-TTSG, that jointly learns to synthesise speech and gestures together. We describe a set of careful uni- and multi-modal subjective tests for evaluating integrated speech and gesture synthesis systems.
• Score: 19.35266496960533
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: With read-aloud speech synthesis achieving high naturalness scores, there is a growing research interest in synthesising spontaneous speech. However, human spontaneous face-to-face conversation has both spoken and non-verbal aspects (here, co-speech gestures). Only recently has research begun to explore the benefits of jointly synthesising these two modalities in a single system. The previous state of the art used non-probabilistic methods, which fail to capture the variability of human speech and motion, and risk producing oversmoothing artefacts and sub-optimal synthesis quality. We present the first diffusion-based probabilistic model, called Diff-TTSG, that jointly learns to synthesise speech and gestures together. Our method can be trained on small datasets from scratch. Furthermore, we describe a set of careful uni- and multi-modal subjective tests for evaluating integrated speech and gesture synthesis systems, and use them to validate our proposed approach. Please see https://shivammehta25.github.io/Diff-TTSG/ for video examples, data, and code.

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