Convert text to speech and Rescript video dialogue with AI
Change your speaker's speech without changing who said it. Edit your video’s script in minutes with synced voice and lips. No reshoots, no studio time needed.
Streamline post-production
Make script edits directly from the transcript. No actors and no studio time required.
Revitalize dated content
Update videos to reflect current brand guidelines and positioning without creating from scratch.
Scale your performance pipeline
Create multiple ad variants from one video to test and iterate without extra production.
Modify video scripts in real-time
Need to change a line? Just update the transcript. Our AI turns text edits into speech, perfectly syncs the lips, and keeps your video seamless—like the new line was always there.

Same voice, new message
Our technology preserves the speaker's unique tone and delivery while changing what they say. Your video stays authentic—even with completely new wording.
Repurpose content without starting over
Fix a script in minutes, not days. No actors, no mics, no timelines blown. Perfect for A/B testing, product refreshes, seasonality updates, and always-on content.

How to edit speech in a video with AI
BOOK A DEMO- 01
Upload Video
Select Rescript and upload your video.
- 02
Edit Script
Make any edits needed to the auto-generated transcript.
- 03
Preview
Preview the changes, complete with with AI-powered lip sync.
- 04
Download
Download your updated video.
FAQs
Can I use text-to-speech online without downloading anything?
Absolutely. LTX Studio runs entirely in your browser, so you can convert text to voice, edit scripts, and sync video and audio online, no software download required.
Can I use Rescripting my video to fix or change just one sentence in a video?
Absolutely. You can update a single line of dialogue or the entire script. It's ideal for replacing outdated CTAs, correcting product names, or testing new versions of a message.
Do I need a voice actor or voice recording to use this tool?
No. The AI clones the original voice and generates new speech based on your script edits—no re-recording or studio time required.
What makes this different from other text-to-speech tools?
Unlike generic voice generators, this tool allows you to edit the script of an actual video while preserving the speaker’s voice and syncing lips to the new audio. It’s made for enterprises, not just creators.
Discover more features
Explore more powerful features that take your vision from concept to final cut.
Enterprise AI Video, Built for Scale
LTX Studio is an enterprise-grade AI video production platform that helps teams develop, produce, and deliver across modern, scalable workflows.











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