Lip Sync lets you replace or add speech to an existing video by synchronizing a new audio track with the speaker's lip movements.
Whether you're localizing content, updating a voiceover, creating marketing videos, or giving a character a new voice, Lip Sync helps your video look like it was recorded that way from the start.
All you need is a video and audio
Using Lip Sync is simple:
Drag LipSync tool on Canvas from "AI Edit Video" category in tool bar.
Connect a video as your source.
Connect an audio file or Audio node.
Choose the model that best matches your needs.
Generate your synchronized video.
Fluidfit aligns the speaker's mouth movements with the supplied audio while preserving the original video.
Choose the model that fits your workflow
Fluidfit currently offers two Lip Sync models.
Lip Sync Precision
Choose Lip Sync Precision when visual quality matters most.
It's ideal for:
Marketing and promotional videos.
Customer-facing content.
Character animations.
Presentations and professional videos.
Lip Sync Speed
Choose Lip Sync Speed when you want faster results.
It's a great option for:
Rapid iterations.
Concept validation.
Social media drafts.
High-volume content creation.
You can also fine-tune generation with options such as Speech Enhancement, Dynamic Duration, and Disable Music Track, depending on your workflow.
Great for
Localizing videos into multiple languages.
Replacing voiceovers without re-recording.
Creating AI presenters.
Updating product demos.
Social media and marketing content.
A few things to keep in mind
Lip Sync works best when the speaker's face is clearly visible.
Clear, high-quality audio produces the most natural synchronization.
Different models prioritize either quality or speed, so choose the one that best fits your project.
For the best results, keep the difference between the audio and video durations within 10%. Larger differences may cause the generation to fail.