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arXiv · 2511.05432

Shared Latent Representation for Joint Text-to-Audio-Visual Synthesis

Dogucan Yaman·Seymanur Akti·Fevziye Irem Eyiokur·Alexander Waibel
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Abstract

We propose a text-to-talking-face synthesis framework leveraging latent speech representations from HierSpeech++. A Text-to-Vec module generates Wav2Vec2 embeddings from text, which jointly condition speech and face generation. To handle distribution shifts between clean and TTS-predicted features, we adopt a two-stage training: pretraining on Wav2Vec2 embeddings and finetuning on TTS outputs. This enables tight audio-visual alignment, preserves speaker identity, and produces natural, expressive speech and synchronized facial motion without ground-truth audio at inference. Experiments show that conditioning on TTS-predicted latent features outperforms cascaded pipelines, improving both lip-sync and visual realism.

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Dogucan Yaman, Seymanur Akti, Fevziye Irem Eyiokur, Alexander Waibel. 2025-11-07. Shared Latent Representation for Joint Text-to-Audio-Visual Synthesis. https://arxiv.org/abs/2511.05432

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