The same product moment with dialogue, voiceover, effects only, a music bed, or silent captions. Audio is chosen per post because many viewers watch on mute.
Seedance 2.5 native audio · captions burned in post
Audio modes
Native dialogue
What you hear The character speaks on camera with lip sync.
Voiceover
What you hear An off-screen narrator over the product.
Sound effects only
What you hear Natural sounds: lid, steam, room tone.
Music bed
What you hear An original instrumental bed, no vocals.
Silent with captions
What you hear No audio; captions carry the message.