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, you can bring it together with approved replacement audio. LipSync does not create the presenter or the voice.
Try the free previewBring an audio track you own. No account required for the free preview.
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.
Use authorized replacement audio
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
- A completed audio track ready for matching
Keep in mind
Not the right tool for
- Creating an avatar from a photo
- Face swapping or imitating a real person
- Creating audio from text
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.
Change words in a video
Got one outdated number, name, date, or sentence in an otherwise good recording? Bring a replacement audio line and match the mouth to it.
See how it works Use caseUpdate a product demo video
When a launch date, product name, or offer changes after filming, a new audio line can keep a usable presenter segment from becoming outdated.
See how it works Use caseReplace a video voiceover
LipSync is for the point after you already have both inputs: an existing talking video and a new, authorized voice track that should appear to be spoken on camera.
See how it works Use caseLip sync an AI presenter video
If you already have a clean, single-speaker AI presenter video, you can bring it together with approved replacement audio. LipSync does not create the presenter or the voice.
See how it works