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Video Lip Sync

Video lip sync is for clips that already have performance in them — a presenter walking a product, a founder on a webcam, an actor in a medium shot. You keep every gesture. The model only rebuilds the mouth so a new line, a new language, or a cleaned-up take lands on the picture you already shot.

Three steps. That is the whole job.

  1. 1

    Upload a video or photo

    A clear, front-facing face works best. Or pick a sample in the studio.

  2. 2

    Add audio or a script

    Type the line and pick a voice, drop a file, or record. No timeline.

  3. 3

    Generate lip sync

    AI matches the mouth to every word. Then download the MP4.

Make a video

Sync this video

150 credits · $1.50

Upload a video or photo

Click to add a video, or drop a file here

Character library

Pick a saved look or a public character, then generate. You can still upload your own still.

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No avatar selected yet

Public library

52 looks

Add audio or a script

Voice library

Same catalog as Voice Library: your clones first, then public voice AI for the engine you pick.

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Rachel

No clones for this engine yet. Clone or design one, or pick public voice AI. Clone a voice

Public voice AI

10 voices

Rachel
Sarah
Adam
Brian
Charlotte
Daniel
Jessica
Eric
Lily
Callum

Generate lip sync

150 credits · $1.50 · Log in

Press Make a video. If we do not have an API key yet, you still get a preview on this computer. AI by Zoice Avatar X

Your video

Nothing here yet. Add a face, add words, then press Make a video. The clip will play in this box.

Example · Zoice Avatar X

See an example

Zoice Avatar X example from zoice.com. Sample generated by this tool’s model. Your clip uses your photo, script, or prompt.
Studio portrait ready for video lip sync
Studio portrait ready for video lip sync
Close-up mouth and jaw reference for viseme matching
Close-up mouth and jaw reference for viseme matching
Laptop studio where a lip sync clip is reviewed
Laptop studio where a lip sync clip is reviewed

Why people use video lip sync

Picture stay intact

Wardrobe, blocking, and camera move are untouched. The mouth pass is composited onto the original frames.

Dialogue replacement

Swap a paragraph without calling talent back. Drop the new WAV and generate over the same take.

Works with original sound or a new track

Keep room tone and rewrite lips, or replace the entire vocal with text-to-speech or a cloned read.

Portrait and wider shots

Best results on faces that fill enough of the frame for teeth and lip corners to be visible. Extreme profiles are weaker.

Three simple steps

  1. Step 1: upload a clear front-facing photo or clip
    Step 1

    Upload the clip

    MP4, MOV, or WebM, up to several minutes depending on plan. A stable face beats a whip-pan.

  2. Step 2: add a script, voice, or audio file
    Step 2

    Choose the audio source

    Keep original sound, paste a rewritten script, or attach a new voiceover.

  3. Step 3: generate and download the talking MP4
    Step 3

    Render the synced take

    Preview the mouth pass, then export. If a syllable is early, trim the audio and run again.

What this clip costs in credits

Every video lip sync job uses the same meter: 150 credits ($1.50) for the first 30 seconds, then 5 credits ($0.05) per extra second. Subscriptions price credits at $0.01; one-time packs are $0.08 each.

DurationcreditsGeneration price
15s150$1.50
30s150$1.50
45s225$2.25
60s300$3.00
90s450$4.50
120s600$6.00

First 30 seconds = 150 credits ($1.50). Plan credits roll over while you stay subscribed.

Good for

Product demos

Update a feature name in last quarter's walkthrough without restaging the desk.

Founder updates

Correct a date or a metric in a webcam video the night before a launch.

Localization prep

Lock picture, then send the same file through video dubbing for Spanish or Hindi with matched lips.

Common questions about video lip sync

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