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About this paper

Jing-Xuan Zhang, Genshun Wan, Jianqing Gao, Zhen-Hua Ling

A new audio-visual representation learning approach distills rich knowledge from large-scale speech foundation models into a joint audio-visual student model, improving robustness in noisy environments and performance in low-resource settings. The method shows superior results in tasks like VSR and AVSR, reducing Word Error Rates, and provides a stable, efficient pretraining process compared to prior self-supervised methods.

Key insights

  • Distilling knowledge from large-scale, audio-only SFMs effectively overcomes the parallel data scarcity limitation for audio-visual representation learning.
  • The use of 'soft labels' in KL divergence and applying distillation loss over all output regions enables richer and more stable knowledge transfer compared to discrete pseudo-labels or masked region-only approaches.
  • Full face images provide more informative visual cues for speech tasks than just the lip region-of-interest, contributing to stronger visual speech recognition performance.

Summary by alphaXiv.

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