Two wooden blocks are clapped together, producing a warm percussive knock with a short dry decay.
Seedance 2.0ByteDance · proprietary
Kling 3.0 OmniKuaishou · proprietary
Veo 3.1Google · proprietary
LTX-2.3Lightricks · open
Ovi 1.1character.ai · open
JavisDiT++JavisDiT · open
MagiHumanGAIR-NLP · open
Per-prompt rubric
Basic standards
Visual presence
- two wooden blocks
Event: two wooden blocks are clapped together
Audio presence
- two wooden blocks
Sound: wooden block clap
Key standards
Visual physical commonsense (V-PC)
- Two wooden blocks make visible block-to-block contact driven by a hand, with continuous motion.
Audio physical commonsense (A-PC)
- The impact has a warm percussive wooden knock timbre with a short dry decay.
Cross-modal physical commonsense (AV-PC)
- The knock sound onset aligns temporally with the visible moment the two blocks meet.