For a finished presenter video you are allowed to use

Lip sync an existing AI presenter video to new audio.

If you already have a clean, single-speaker AI presenter video, give it new speech by typing with a selected or cloned voice, uploading authorized audio, or recording it. UseLipSync does not create the presenter itself.

Open Video Lip Sync

Bring an audio track you own. New sessions start with 500 credits; no account is required.

“Use code BRIGHT for twenty percent off.”

Line B selectedAI-generated presenter

What the sample proves

The presenter stays visible; the line changes.

This sample uses an AI-generated presenter and labels it as such. The demonstration is about mouth matching, not avatar generation or identity replacement.

Three steps

Bring the inputs. Keep control of the words.

Export the presenter clip

Start with a finished MP4 or MOV that shows one clear, forward-facing speaker.

Define authorized new speech

Type with a voice you may use, record your line, or upload the final audio track you have the right to use.

Generate a revised presenter line

Review the result with captions, then download your MP4.

A good fit

Use it when

A pre-rendered, single-speaker AI presenter video
A clear face and mouth with steady framing
New speech you can type, upload, or record

Keep in mind

Not the right tool for

Creating an avatar from a photo
Face swapping or imitating a real person
Writing the new script for you

Use cases

Find the right starting point

Every workflow starts with the same two inputs: one clear speaker and audio you are authorized to use.

Use case

Change words in a video

Got one outdated number, name, date, or sentence in an otherwise good recording? Type the corrected line, upload it, or record it — then match the mouth to it.

See the guide

Use case

Update a product demo video

When a launch date, product name, or offer changes after filming, a new line you type, upload, or record can keep a usable presenter segment from becoming outdated.

See the guide

Use case

Replace a video voiceover

UseLipSync starts with an existing talking video, then lets you supply new speech by typing with a selected or cloned voice, uploading audio, or recording it to appear spoken on camera.

See the guide