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A violin plays continuously about one meter to the listener's left. The sound stays clearly on the left side with no drift.

C1-2-01 Steady State · source_anchoring principle: Static Source Lateralization (Wave)
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 violin

Event: a violin is played

Audio presence

  • a violin

Sound: violin playing

Key standards

Visual physical commonsense (V-PC)

  • A visible violin is positioned on the left side of the frame throughout the clip, played by a person in continuous physically plausible bowing motion.

Audio physical commonsense (A-PC)

  • The audible tone has the sustained tonal character of a real bowed violin string.

Cross-modal physical commonsense (AV-PC)

  • The violin sound is dominantly localized to the left side of the audio field, matching the visible left-side position of the violin.
  • The clip's audio is produced by a single visible violin source.