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A large water drop falls into a pool with a deep plop. Smaller drizzle droplets land with higher-pitched plinks.

C2-1-15 Event Transition · source_body principle: Object Size -> Pitch (Mechanics)
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

  • water drops
  • a pool

Event: water drops fall into a pool

Audio presence

  • water drops
  • a pool

Sound: water drop impact on a pool

Key standards

Visual physical commonsense (V-PC)

  • A single large water drop falls into the pool first, followed by smaller drizzle droplets landing on the same pool.

Audio physical commonsense (A-PC)

  • The smaller drizzle droplet sounds are noticeably higher in pitch than the large drop's deep plop.
  • The sounds are realistic water-impact plops and plinks.

Cross-modal physical commonsense (AV-PC)

  • Each drop impact sound aligns in time with a visible droplet landing in the pool.
  • The higher-pitched plinks correspond to the smaller drizzle droplets.
  • The deeper plop corresponds to the large water drop.