Align visual rhythm with musical timing using @audio references

Seedance 2.0 Music Beat Synchronization

Music-driven video requires precise alignment between visual events and audio beats. Seedance 2.0's @audio reference system lets you feed a music track directly into the generation process, then use timestamp-based prompt cues to define which visual events land on which beats. This page covers beat mapping, visual rhythm techniques, and multi-section music video construction.

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Последнее обновление: 2026-03-26

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Beat mapping your audio track

Before writing the prompt, identify the key beats, drops, and transitions in your music track with timestamps. Note the BPM and any tempo changes. Map visual events to these timestamps: 'camera cut at 0:02, character turn at 0:04, color shift at 0:06.' This beat map becomes the backbone of your prompt's timing instructions.

Visual rhythm techniques

Visual rhythm can manifest as camera cuts, zoom pulses, color flashes, motion speed changes, or character actions. Match the intensity of the visual event to the intensity of the musical moment: subtle sway for quiet beats, dramatic camera snap for drops. Describe these in your prompt with timing: 'gentle sway on soft beats, sharp camera cut on each snare hit.'

Building multi-section music videos

Most songs have distinct sections: intro, verse, chorus, bridge, outro. Generate each section separately with its own visual style and energy level, then assemble them. Keep character and style references consistent across sections. The chorus should feel visually elevated compared to verses — brighter colors, faster cuts, more dynamic camera movement.

Fine-tuning sync in post-production

Generated footage may occasionally drift by a fraction of a second from the intended beat. Use your video editor to slip-sync clips by shifting them a few frames forward or back to land perfectly on the beat. This minor post-production step can dramatically improve the perceived quality of the sync.

Примеры Input / Output

Beat-synced product showcase

A product reveal timed to music drops using an @audio reference with timestamp cues.

@audio[product-track.mp3] Product showcase on a dark stage: soft ambient intro 0:00-0:03 with product silhouette barely visible, bass drop at 0:03 triggers a dramatic spotlight reveal and camera snap zoom to product, rhythmic beat from 0:03-0:08 drives a slow 360-degree rotation synced to each beat hit, final cymbal crash at 0:08 triggers a burst of particles around the product, dark luxurious atmosphere throughout.

A product reveal sequence where the spotlight, zoom, rotation, and particle burst all align precisely with the corresponding musical moments in the audio track.

Evidence: music-sync capability examples

Dance sequence with beat-aligned cuts

A multi-angle dance clip where camera angle changes land on each musical beat.

@audio[dance-beat.mp3] @image[dancer-ref.png] Fast-paced dance sequence, character from reference image performs sharp choreography in a neon-lit studio, camera angle changes on every snare hit: front view, low angle, side view, overhead cycling through each beat, motion intensity matches music energy with faster movement during chorus, subtle slow motion on the bridge section at 0:12-0:16, full energy return on final chorus, consistent neon pink and blue lighting.

A dynamic dance sequence with camera angle changes precisely aligned to snare beats, energy levels tracking the song structure from verse to chorus to bridge.

Часто задаваемые вопросы

Does Seedance 2.0 automatically detect beats from the @audio reference?

The model analyzes audio energy and rhythm patterns from the reference track. However, adding explicit timestamp cues in your prompt significantly improves beat alignment precision. Always combine the @audio reference with written timing instructions for best results.

What music formats work as @audio references?

WAV and MP3 formats work reliably. Use clean, well-mastered tracks without excessive compression. Isolated instrument stems can produce even tighter sync than full mixes because the beat pattern is clearer.

How do I handle tempo changes in the middle of a track?

Split your generation at the tempo change point. Generate the first section at the original tempo, then start a new generation for the changed section with updated timing cues. This prevents the model from averaging the two tempos and missing beats in both sections.

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