Lip sync video and make talking avatars

Connect the Scenario MCP

Connect your agent and sign in once at mcp.scenario.com. Then tell it which Scenario team and project to use, so every file lands there.

Give the agent the files

The clean speech (no music under it, no silence before the first word), and either the source clip to re-sync or the approved front-facing portrait. Upload them with upload_asset or give their asset IDs. Use invented faces, or a real person's only with their consent.

Brief the agent: re-sync a clip

Trim my source clip to the spoken part with Video Cut (model_scenario-video-cut). Then re-sync the mouth to my audio with Sync-3 Lipsync (model_sync-lipsync-v3): the trimmed video and the audio, sync mode cut_off if they are the same length, remap if both must stay whole (read model_schema_get for the parameter names). Tell me both lengths before you run. Quote the cost with a dry run first and wait for my go.

Or brief the agent: animate a portrait

Animate my approved portrait with Minimax H3 Max Lip Sync (model_minimax-h3-max-lip-sync): the portrait and the audio, no text prompt, a low resolution for this test (read model_schema_get for the parameter names and resolutions). The audio must be 5 to 15 seconds: if it is longer, split it at sentence breaks and make one clip per part with the same portrait. Quote the cost with a dry run first and wait for my go.

Check and redo

Accept when the lips close on "p", "b" and "m", the mouth opens on vowels as you hear them, teeth stay stable and the face stays the same person. Reject a mouth that lags or leads, lips open on closing sounds, flickering teeth, a changed face, or a blurred mouth area. Fix the inputs before you try another model.

Wait for the job with jobs_wait and show me the clip. Extract the frames around each "p", "b" and "m" with Video to Image Sequence (model_scenario-video-to-image-seq) and tell me where the lips stay open. Redo only on my go.

File and report

Create a collection for this presenter with the portrait or source clip, the audio and the accepted clips, and report the models, the settings and every asset ID.

Prepare the speech

Clean speech with no music under it, at a natural pace, made with a narration model and listened to first. Trim any silence before the first word and compare the audio's length with the video or the model's limit.

Prepare the face

The mouth fully visible, even light on the face, room above the head and below the chin for a portrait, and little camera movement in a source clip. Generate and approve the portrait first, at the framing you want.

Open the video panel and pick the model

Create › Videos, click the Model card › View all models, search "lip sync" or the model's name, read its inputs on the right and click Use this model.

Re-sync an existing clip with Sync-3 Lipsync

Trim the source to the spoken part with Video Cut, choose Sync-3 Lipsync, load the video and the audio, and pick the sync mode: keep cut_off when both are the same length, remap when the full video and full audio must both stay. Check the price on the button and generate.

Animate a portrait

Choose Minimax H3 Max Lip Sync, load the approved portrait and 5 to 15 seconds of audio (no text prompt), and pick a lower resolution for a test, higher for the final take. Split longer scripts at sentence breaks, one clip per part.

Check the mouth

Watch at full speed with sound, then step through the frames on the hard sounds. Accept when the lips close on "p", "b" and "m" and the face stays the same person; reject a mouth that lags or leads, flickering teeth or a blurred mouth area.