SOURCE-LINKED INTELLIGENCE
What Do Audio-Visual Synchronization Metrics Actually Measure?
Automatic AV-sync metrics are widely used to rank and train audio-visual generators, but they are rarely audited as measurement instruments. We jointly audit AV-Align, ImageBind AV-relevance, JavisScore, and Synchformer/DeSync under a common reliability protocol: controlled-distortion monotonicity, preprocessing sensitivity, rank uncertainty, cross-metric agreement, PEAVS-proxy agreement, and learned fusion. The result is an axis split, not a single winner: Synchformer/DeSync is the strongest temporal-offset tracker ($τ=0.84$), ImageBind/JavisScore better match the PEAVS human-aligned proxy ($
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Evidence & attribution
- arXiv · AI, language, vision and robotics · 2026-08-25T21:08:24.000Z
First collected: 2026-09-21T09:42:05.193Z. This is not the publication date.