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A standing fan spins steadily on the left side of the listener. The airflow noise and motor hum stay fixed on the left.

C1-2-03 Steady State · source_anchoring principle: Static Source Lateralization (Wave)
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Per-prompt rubric

Basic standards

Visual presence

  • a standing fan

Event: a standing fan spins

Audio presence

  • a standing fan

Sound: fan airflow and motor hum

Key standards

Visual physical commonsense (V-PC)

  • A visible standing fan with spinning blades is positioned on the left side of the frame throughout the clip.

Audio physical commonsense (A-PC)

  • The audible sound carries the steady whooshing airflow and low motor hum of a real standing fan.

Cross-modal physical commonsense (AV-PC)

  • The fan airflow and motor hum are dominantly localized to the left side of the audio field, matching the visible left-side position of the fan.
  • The clip's audio is produced by a single visible fan source.