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A person blows steadily across the opening of an empty bottle. A clear low tone hums out and holds steady for several seconds.

C1-1-54 Steady State · source_material principle: Helmholtz Resonance (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 person
  • an empty bottle

Event: a person blows across the opening of an empty bottle

Audio presence

  • a bottle

Sound: bottle resonance tone

Key standards

Visual physical commonsense (V-PC)

  • A person blows breath horizontally across the lip of the bottle with continuous plausible motion.
  • The bottle is empty and rigid throughout the clip.

Audio physical commonsense (A-PC)

  • A steady low-frequency Helmholtz cavity resonance tone holds at a consistent pitch for several seconds.

Cross-modal physical commonsense (AV-PC)

  • The onset of the resonance tone coincides with the visible start of the breath across the bottle opening.