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A cymbal is crashed loudly with a long shimmering ring. Then a hand grabs the cymbal edge and the sound stops instantly.

C2-3-16 Event Transition · source_radiation principle: Resonance Damping (Mechanics)
Seedance 2.0ByteDance · proprietary
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Veo 3.1Google · proprietary
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MagiHumanGAIR-NLP · open
Per-prompt rubric

Basic standards

Visual presence

  • a cymbal
  • a hand

Event: a hand grabs a crashed cymbal

Audio presence

  • a cymbal

Sound: a cymbal crash

Key standards

Visual physical commonsense (V-PC)

  • A cymbal is visibly crashed once with a stick during the clip.
  • A hand visibly grabs the cymbal edge while the cymbal is still ringing.

Audio physical commonsense (A-PC)

  • The cymbal produces a long shimmering ring after the crash.
  • The ring decays to silence almost instantly once the hand grabs the cymbal edge, with no residual ringing.

Cross-modal physical commonsense (AV-PC)

  • The crash transient in the audio aligns in time with the visible stick strike.
  • The abrupt end of the ring coincides in time with the visible moment the hand contacts the cymbal edge.