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AI video-audio architecture

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Unified audio-video generation

IN CONTEXTAI video-audio architecture1 viewpoints
2026-04-15

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Unified audio-video generation

Seedance 2.0 generates audio and video jointly from a single unified architecture—enabling millisecond-level synchronization and native dual-channel stereo output with layered tracks (e.g., background music, ambient effects, voiceover), not post-hoc dubbing.

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Supporting evidence

How to make remarkable videos with Seedance 2.0 – Replicate blog

Original excerpt

Seedance 2.0 doesn’t generate video and then dub audio on top. Audio and video come from the same unified architecture, which means they’re synchronized at the millisecond level.

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