Lip sync
AI lip sync and dubbing
Swap the audio on a video you already have and the lips are re-timed to match. Lip Sync / Dub runs VEED Lip Sync 2.0 and costs 1 credit per second of video, with a 10-credit minimum. Need the voice too? Make it in AI Voiceover first.
Every run needs a consent confirmation. Failed jobs are refunded.
Dub with your own audio
Upload a translated or re-recorded voiceover and the lips follow it.
1 credit per second
10-credit minimum; a 30-second clip is 30 credits. Failed jobs are refunded.
Consent built in
Every run needs a consent confirmation, and public figures are blocked.
How lip sync works
Pick a video of the person speaking (up to 30 seconds in the editor), add the new audio, confirm you have their permission, and VEED Lip Sync 2.0 re-times the lips to the new track.
- 01
Pick the Video to Dub
Open Edit Video and choose the Lip Sync / Dub tool, then upload a clip of the person speaking or pick one of the videos you already made on Viralance. The editor accepts MP4, MOV or WebM uploads up to 30 seconds and 500 MB.
- Dashboard → Edit Video → Lip Sync / Dub
- Upload MP4, MOV or WebM (up to 30 seconds, 500 MB in the editor)
- Or reuse a clip from your Viralance library
- A clear, front-facing speaker gives the model the most to work with
- Videos of public figures are not permitted
- 02
Add the New Audio
Upload the audio you want the person to say, for example a translated voiceover. Any common audio file works (mp3, wav, m4a and similar). No recording? Write the script in AI Voiceover first and download the MP3.
- Upload any common audio file (mp3, wav, m4a…)
- AI Voiceover: 21 ElevenLabs v3 voices, up to 5,000 characters
- Voiceover pricing: 1 credit per 500 characters, minimum 2 credits
- Clean speech with little background noise syncs best
- 03
Confirm Consent and Sync
Tick the consent box confirming you have permission to lip-sync the person in the video, then run it. VEED Lip Sync 2.0 replaces the soundtrack and re-times the mouth movements to the new audio. The finished clip appears in your video library.
- 1 credit per second of source video, 10-credit minimum
- Consent confirmation is required for every run
- A frame of your video is screened for public-figure faces
- Failed jobs are refunded automatically
Three ways to get a talking video
Use Lip Sync / Dub when you already have the video and want it to say something new. Use a native-audio model when you want a new clip whose voice is generated with it. Use AI Voiceover to create the audio for a dub.
Lip Sync / Dub
Your audioVEED Lip Sync 2.0 in Edit Video
- Replaces the audio on an existing video and matches the lips
- 1 credit per second, 10-credit minimum
- Clips up to 30 seconds in the editor
- Consent confirmation required
Native-Audio Video Models
Speech generated with the clip
- VEO 3.1 Fast/Lite, Kling 3.0, Kling O3 Pro, Seedance 2.0/2.5
- Write the spoken line into your prompt
- Text-to-video or image-to-video
- Cannot sync to an audio file you upload
AI Voiceover
Make the audio to dub with
- 21 ElevenLabs v3 voices
- Up to 5,000 characters per voiceover
- 1 credit per 500 characters, minimum 2
- Download as MP3, then use it in Lip Sync / Dub
Lip Sync / Dub edits the clip you give it rather than generating a new scene. Native-audio models let you choose the aspect ratio when you generate.
Where lip sync helps
Lip sync is most useful when the footage is already right and only the words need to change. Do not use it without permission from the person on screen, on public figures, or for clips longer than 30 seconds in one run.
Dubbing Into Another Language
Record or generate a translated voiceover and sync it to your original clip, so the same video can run in a second market without a reshoot.
Fixing a Line Without Reshooting
Changed a price, a date or a product name? Replace the audio on the take you already have and let the lips follow the new script.
Social Media Shorts
Short talking-head clips for TikTok, Reels and Shorts fit the 30-second editor limit, and a 10–30 second clip costs 10–30 credits.
Clean Up Bad Audio
Re-record a noisy or muffled take (or voice it with AI Voiceover) and sync the clean version back onto the footage.
E-Learning & Training Updates
Keep short instructor clips current by swapping in updated narration instead of booking a new recording session.
AI Presenters With Their Own Voice
Generate a presenter clip with a native-audio model, then dub it with a voice you choose in AI Voiceover so every video in a series sounds the same.
Frequently asked questions
What Lip Sync / Dub does, what it accepts, what it costs and what it will not do.
What is AI lip sync on Viralance and how does it work?
Lip Sync / Dub is a tool in Edit Video. You give it an existing video of a person speaking and a new audio track, and VEED Lip Sync 2.0 (run through fal.ai) replaces the soundtrack and re-times the mouth movements to match the new audio. It edits a video you already have; it does not create a new character from a text prompt or a photo.
Can I make a new talking character from a prompt or photo and my own audio file?
Not in the web app today. If you want a brand-new character that speaks, use a model with native audio (VEO 3.1 Fast or Lite, Kling 3.0, Kling O3 Pro, Seedance 2.0 or 2.5) and write the line into your prompt; the model generates the voice with the video, so you cannot supply your own recording there. To use your own recording, generate or upload the video first, then run Lip Sync / Dub with your audio.
Can I dub a video into another language?
Yes, that is the main use. Upload a translated voiceover as the audio track and the lips are re-timed to it; the example in the editor shows an English clip dubbed into Spanish. Viralance does not translate the audio for you, so you need the translated recording, or you can generate one in AI Voiceover from a translated script. We do not publish a list of supported languages, so test a short clip in your language first.
What audio and video files can I upload?
The audio input accepts common audio files such as mp3, wav and m4a. The source video can be an MP4, MOV or WebM upload of up to 30 seconds and 500 MB in the editor, or a video from your Viralance library. The lip-sync engine itself caps input at 10 minutes, but the web editor currently limits uploads to 30 seconds.
How much does lip sync cost?
Lip Sync / Dub costs 1 credit per second of source video, with a 10-credit minimum. The length is measured on our server, so a 6-second clip costs 10 credits and a 30-second clip costs 30. On the $9 Mini pack (30 credits) that is about $3.00 for a 10-second clip; on the $299 Business pack (1,650 credits) the same clip is about $1.81. If you need the audio too, AI Voiceover adds 1 credit per 500 characters (minimum 2). Packs are one-time purchases and credits never expire.
Why do I have to confirm consent, and what is not allowed?
Making a real person appear to say something new is the easiest way to create deceptive media, so every lip-sync run requires you to confirm you have permission from the person in the video. We also screen a frame of the video and block public figures. Do not use the tool to impersonate anyone or to put words in someone's mouth without their agreement.
What happens if a lip sync job fails?
Credits are refunded automatically if the job cannot be submitted, if the provider returns no usable video, or if it times out after 30 minutes. Refunded jobs show as failed in your video library, and the credits appear back in your balance.
How long does it take?
We have not published measured wait times for Lip Sync / Dub. For regular video generation, our own study of real jobs (/research/real-world-ai-video-generation-2026) found typical median waits of 2–5 minutes. You can leave the page; the result appears in your video library when it is done.
Who owns the lip-synced video?
Under the Viralance Terms of Service you keep ownership of the videos you generate. You are responsible for having the rights to the source video, the audio and the likeness of the person in it.