Convert text to speech and rephrase video dialog with AI

Change what they say - without changing who said it. Edit your video’s script in minutes with synced voice and lips - no reshoots, no studio time.

No credit card needed
Cut text-to-speech costs by 99% & save weeks on video edits.

*Savings estimates are based on standard 3rd party vendor costs for reshoots and translation production services.

Rephrase my video

The problem

The solution

Costly reshoots

Script reshoots cost $5K average

99% cheaper

Update dialog for as low as $1 per language

Time delays

Reshooting adds weeks of turnaround

99% faster

Video is ready in minutes

Launch blocks

Smallest script changes stall campaigns

Quick edits

Update anytime without reshooting

Why marketers choose AI dialog editing

01

Modify video scripts in real-time

Need to change a line? Just update the transcript. Our AI transforms your text edits into speech, syncs the lips, and keeps your video looking seamless, like the new line was always there.

Rephrase my video
02

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.

Rephrase my video
03

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.

Rephrase my video

AI dialog editing in action

AI video editing tools

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Dub videos in 175+ languages with authentic voice cloning and perfect lip sync.

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Translate videos instantly without voice actors or manual editing required.

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Resize video for any platform while keeping your subject perfectly framed.

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Video Cropper

Crop video content precisely while keeping your subject perfectly framed.

Video extender tool

AI Video Extender

Expand video backgrounds with AI to add branding or fit any aspect ratio.

text to speech ai tool

Text to Speech AI

Convert text to speech with AI voices that sound natural and professional.

How to edit speech in a video with AI

01
Upload your video and select Rephrase
02
Edit the auto-generated transcript
03
Preview changes with AI-synced lips
04
Download your transformed video

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frequently asked questions

Can I use Rephrasing to fix or change just one sentence in a video?

Absolutely. You can update a single line of dialog or the entire script. It's ideal for replacing outdated CTAs, correcting product names, or testing new versions of a message.

Can I use text-to-speech online without downloading anything?

Absolutely. Ltx Scaler runs entirely in your browser, so you can convert text to voice, edit scripts, and sync video and audio online, no software download required.

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.

Is there a free text-to-speech tool I can use?

Yes! Ltx Scaler offers a free version of its AI text-to-speech and dialog rephrasing tool. You can test script edits, voice generation, and lip syncing without any upfront cost.

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 marketers, not just creators.