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arXiv · 2406.08802

DubWise: Video-Guided Speech Duration Control in Multimodal LLM-based Text-to-Speech for Dubbing

Neha Sahipjohn·Ashishkumar Gudmalwar·Nirmesh Shah·Pankaj Wasnik·Rajiv Ratn Shah
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Abstract

Audio-visual alignment after dubbing is a challenging research problem. To this end, we propose a novel method, DubWise Multi-modal Large Language Model (LLM)-based Text-to-Speech (TTS), which can control the speech duration of synthesized speech in such a way that it aligns well with the speakers lip movements given in the reference video even when the spoken text is different or in a different language. To accomplish this, we propose to utilize cross-modal attention techniques in a pre-trained GPT-based TTS. We combine linguistic tokens from text, speaker identity tokens via a voice cloning network, and video tokens via a proposed duration controller network. We demonstrate the effectiveness of our system on the Lip2Wav-Chemistry and LRS2 datasets. Also, the proposed method achieves improved lip sync and naturalness compared to the SOTAs for the same language but different text (i.e., non-parallel) and the different language, different text (i.e., cross-lingual) scenarios.

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Neha Sahipjohn, Ashishkumar Gudmalwar, Nirmesh Shah, Pankaj Wasnik, Rajiv Ratn Shah. 2024-06-13. DubWise: Video-Guided Speech Duration Control in Multimodal LLM-based Text-to-Speech for Dubbing. https://arxiv.org/abs/2406.08802

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