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AlignDiT: Multimodal Aligned Diffusion Transformer for Synchronized Speech Generation

Created by
  • Haebom

Author

Jeongsoo Choi, Ji-Hoon Kim, Kim Sung-Bin, Tae-Hyun Oh, Joon Son Chung

Outline

This paper addresses multimodality speech generation, which synthesizes high-quality speech from multiple input modalities: text, video, and reference audio. We propose a multimodality alignment diffusion transformer, AlignDiT, to address the challenges of speech intelligibility, audio-video synchronization, natural speech, and reference speaker similarity. AlignDiT builds on the context-independent learning capabilities of the DiT architecture and explores three strategies for aligning multimodal representations. Furthermore, we introduce a novel multimodality classifier-free guidance mechanism that adaptively balances information from each modality during speech synthesis.

Takeaways, Limitations

AlignDiT outperforms existing methods in terms of speech quality, synchronization, and speaker similarity.
It demonstrates strong generalization ability in various multimodality tasks such as video-to-speech synthesis and visual coercion alignment.
The specific Limitations for the proposed methodology is not stated in the paper.
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