Pick a style and a language
Choose them on the upload screen, or let Lua tell the language from your speech.
Captions
Captions timed to every word, in the language you speak.
Timing captions by hand takes hours, and most tools get Tanglish wrong. Lua times every word you say, in four styles built from After Effects templates — in English, Tamil script or Tanglish.
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How to stop hallucination in your AI product?
idhu vandhu namma system promptla poyittu simple aa
hallucinate pannaadha hundred percent right result a kodu appadinnu sonnaa mattum patthaadhu.
ennaa adhu work aagaadhu.
ennaa AI sollum
boss naan right information thaan
unakku kudukkuren appadinnu
ennaa AI model vandhu thappaa
answer pandradhai vida enakkuth theriyalainnu sollattum.
adhai vachu namma adhukkappuram context improve panni
andhak case varaadha maadhiri thadutthukkalaam.
And ungalukku unga AI product-la hallucination stop pannanumnu ninaicheengannaa comment-la hallucination type pannunga.
adhukkaana step by step detailed doc naan direct aa ungalukku send pandren.
Google — NotebookLM Video Overviews official demo
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The app’s own screen, rebuilt for the web with sample data. Click around.
How Captions works
What Lua does
Lua turns what you said into word-timed captions you can change.
Lua times every word
Captions are built from what you said, page by page. The word you’re saying lights up.
Change anything
Fix a word, move a line, change a colour — or switch every caption to another style in one click.
The details
What you get
Hover or tap a card, then click around inside it.
Styles
Four styles from After Effects
Ember, Ember Classic, Ephaphra and Halo were rebuilt from After Effects templates and checked against the originals. Pick one below.
BUILD YOUR AGENTCaption style
Language
Tamil letters or Tanglish
The same Tamil speech, written in Tamil letters or in English letters. Pick per reel. Change it later.
Indha tool romba betterCaption language
Not a translation
Both are what you said. Only the letters change.
Fonts
Fonts with the real letters
Captions use fonts that carry Tamil, Hindi, Malayalam, Kannada and Telugu letters, so words never break into boxes.
Tamil
இந்த டூல் ரொம்ப பெட்டரா இருக்கு
Every letter drawnNo boxes, no wrong shapes
OKExport
What you see is what you export
Captions are real layers. The editor and the exported reel show exactly the same thing.
Editor
EVERY WORDExported reel
EVERY WORDExportRendered on your Mac
DoneOr teach it a new look
Show Lua a few reels you love. It learns the captions, the pace and the layout, and uses them on your next edit.
- Drop reels or paste links
- Starts as a draft you check
- Steers the cut, b-roll and AI chat
Keep going
Works well with
Raw cut
Retakes and silences gone, every cut visible
Retakes and pauses cut. Every cut word stays visible.
See Raw cutTake 3
So NotebookLM can turn your notes into a quiz.
3 cut · click one to bring it back
Take 4Clean · kept
KeptStyles
Learns the look of reels you love
Show it reels you love. It learns the look and steers your next edit.
See StylesReading 3 reels
DoneLearning the look
DonePodcast lookReady to check
DraftB-roll
Recorded from the product’s own site
The product’s own site or launch video, recorded at the right moment.
See B-rollB-roll
Line 4 · “open NotebookLM”notebooklm.google.com
PlacedLine 9 · “the new audio mode”Official launch video
Placed3 other shotsOne click to swap
Questions about Captions
Anything we have not covered? Send it over and we will answer.
They are built from After Effects templates and checked against them. Some are closer than others. Where a style uses a stand-in font, the app says so.
You record. Lua does the rest.
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Reserve my spotReserve your founding price.
We open Lua 50 creators at a time. Founding members keep today’s price for as long as they stay subscribed, and get 50% off the first month. Not for you? Full refund within 14 days of your first payment.