For launch dates, product names, and offer changes

Update a product demo video without reshooting the presenter.

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offer changes after filming, a new line you type, upload, or record can keep a usable presenter segment from becoming outdated.

Open Video Lip Sync

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

“Meet Luna, our new workspace.”

Line B selectedAI-generated presenter

What the sample proves

Same presenter. Updated product name.

This finished A/B pair changes only the named product. It demonstrates the kind of focused replacement this workflow is built for — not an entire screen-recording edit.

Three steps

Bring the inputs. Keep control of the words.

Isolate the presenter segment

Use one clear speaker segment from the product video, 3 seconds to 5 minutes long.

Prepare the approved new line

Type it with a selected or cloned voice, record it, or bring an audio track you own.

Replace, review, publish

Generate the lipsynced result, check it, and use the downloaded MP4 in your edit.

A good fit

Use it when

A changed shipping date, version, product name, or offer
A talking presenter segment already worth keeping
A short final check before publishing

Keep in mind

Not the right tool for

Editing the product UI shown on screen
Writing new launch copy or generating a voice
Replacing multiple speakers in a demo

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Got one outdated number, name, date, or sentence in an otherwise good recording?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