sync. is an AI tool that automatically lip-syncs video to a new voiceover or translated audio track. It adjusts mouth movements to match the replacement audio without requiring separate training on the speaker’s face or voice.
What it’s used for
- Dubbing videos with a new voiceover
- Translating content into other languages while keeping natural lip movement
- Localizing marketing, educational, and promotional videos for different audiences
How it works
- Upload a video
- Upload or provide a new audio track
- Receive an edited version where lip movement is synchronized to the new audio
Notes and comparisons
- Strengths: no pre-training required, adapts to different speakers, aims to preserve facial expressions and emotion
- Limitations: accuracy can depend on source video quality and speech complexity
- Alternatives mentioned: Descript Overdub, Papercup, DeepDub
- Key difference: sync. does not require training on a specific speaker and supports multiple languages
