← all videos

A car engine idles. The driver presses the gas pedal gradually, and the engine roar grows steadily louder.

C2-2-07 Event Transition · source_excitation principle: Strike Force -> Loudness (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

  • a car
  • a gas pedal
  • a driver

Event: a driver presses the gas pedal of a car

Audio presence

  • a car engine

Sound: a car engine running

Key standards

Visual physical commonsense (V-PC)

  • The car visibly idles first, then the driver visibly presses the gas pedal with gradually increasing depth in a smooth continuous press.

Audio physical commonsense (A-PC)

  • The engine sound grows progressively louder as the pedal is pressed further, rising smoothly from the idle level.
  • The sound is a real continuous car engine running and revving.

Cross-modal physical commonsense (AV-PC)

  • The rising engine loudness aligns in time with the visible depression of the gas pedal.
  • The louder engine sound corresponds to a more deeply pressed gas pedal.
  • The idle-level engine sound corresponds to a released or barely-pressed gas pedal.