Wan2.2-S2V Audio-Driven Video Generation

Transform static images and audio into dynamic videos with perfect synchronization and minute-level generation.

Input

Speech or singing that drives the mouth. The video is about 14 s long (3 × 77 frames at 16 fps); use audio of about that length.

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A clear picture of the person; the video keeps their face and look.

Describe the person, what they are doing and the camera.

Output size in pixels.

Output size in pixels.

Advanced settings

Keep at 1 with the lightning LoRA.

Default: 1

What to avoid in the result.

Leave empty for a new result each run. Enter a number to repeat one.

4 with the built-in lightning LoRA.

Default: 4

Output
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Example

例を試す

このワークフローについて

This ComfyUI workflow turns a single reference image and an audio track into a synchronized video using the Wan 2.2 S2V (sound-to-video) model. It loads the Wan backbone with UNETLoader, CLIPLoader, and VAELoader, and sets the correct schedule via ModelSamplingSD3. Your text prompt is encoded by CLIPTextEncode, while the audio is processed by AudioEncoderLoader and AudioEncoderEncode. These signals, together with the image from LoadImage, drive WanSoundImageToVideo to synthesize motion that follows the rhythm and phrasing of the audio.

The KSampler controls steps, CFG, and seed; VAEDecode converts latents to frames; and CreateVideo assembles the final clip.

Two engineering details make the workflow practical for production: a first-frame stabilization and scalable length. The Fix overbaked first frame group uses LatentCut and LatentConcat to duplicate the initial latent frame before decoding, then discards the first decoded frame to avoid the common VAE “overbaked” look on frame 0.

For long clips, the Video S2V Extend subgraphs let you chain segments in chunks (77 frames by default) using LatentCut/LatentConcat, so you can build minute-level videos without blowing up VRAM. The workflow also supports a lightning path: with a Wan 2.2 lightning LoRA you can sample in 4 steps (recommended CFG ~1.0). If you prefer quality and stability, use the standard path at ~20 steps (CFG ~6.0).

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