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Two wooden blocks are clapped together, producing a warm percussive knock with a short dry decay.

C1-1-08 Steady State · source_material principle: Wood sounds (Material)
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.