Captio AI
🦻 Accessibility + 💻 Productivity App

Gujarati live captions and productivity tool for lectures

For deaf and hard of hearing people.

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Captio AI app showing live captions

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Use Cases

Every situation covered

Designed for the real moments that matter — not just quiet controlled environments.

🏛️Large lecture halls

Gujarat University, MS University Baroda, SVNIT, and CEPT University lecture halls. Gujarati-medium lectures at academic pace. Place the phone on the desk facing the speaker. Captio AI captions from any row.

🔬Seminars and tutorials

Gujarati university seminars mixing Gujarati, Hindi, and English in discussion. Students from Saurashtra, Surat, and northern Gujarat contributing with different regional varieties. Captio AI captions whoever is speaking.

💻Online and recorded lectures

Recorded lectures on university portals or WhatsApp shared recordings. Put the recording on speaker and point Captio AI at the audio for accurate captions in real time.

📚Study groups

Study groups in Ahmedabad or Surat — fast conversational Gujarati mixed with Hindi and English. Captio AI follows whoever is explaining and handles all three languages without switching.

🌍Foreign-language and international courses

Gujarati students in English-medium programmes, or international students following Gujarati-medium lectures. Live Translator captions in real time so language is not the access barrier.

🎤Guest speakers and public talks

Visiting academics and diaspora Gujarati speakers from the UK, US, and East Africa. Captio AI handles Ahmedabad, Saurashtra, Surti, and diaspora Gujarati — any speaker at any venue.

Performance

Most accurate and fastest models

Gujarati
92.2%

word accuracy

independent benchmark, 2025

< 200ms
you speak
captions

real-time captions

first word appears as you speak

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Captio AI in everyday use
Why Captio AI

Built for the pace and pressure of a real lecture

Follow without splitting your attention

Lip-reading and note-taking at the same time is an impossible cognitive load. Captio AI handles the following so you can direct all your attention to understanding what is being said.

Captions while the lecturer is still speaking

Words appear on your screen as they are said — not after the sentence ends. You stay in sync with the lecture rather than always being a beat behind.

Works in any lecture setting

Lecture halls, seminar rooms, online classes, study groups. Place the phone on your desk, point it toward the audio source, and Captio AI handles the rest.

A full transcript to study from

Record the lecture and upload it to Audio Transcription after class. Get a complete written record you can search, annotate, and revise from — at your own pace.

60+ languages

For international students, students studying abroad, or courses taught in a second language. Captio AI captions or translates in real time with no manual setup.

No advance notice needed

Official university captioning requires booking in advance and is not available for every session. Captio AI works for any lecture, any time, with no prior arrangement.

Gujarati

Why Gujarati is hard to understand

Breathy vowel contrast

  • Gujarati has phonation contrasts in its vowels — a feature almost unique globally — invisible on the lips
  • Gujarati is one of very few languages in the world to distinguish modal (normal) vowels from breathy/murmured vowels phonemically. The UCLA Phonetics Lab study on Gujarati contrastive phonation documents this rare four-way phonation contrast in both consonants and vowels. Breathy and modal vowels have the same lip shape — the distinction is entirely in voice quality (phonation type), which is acoustic, not visual. In a Gujarati lecture, these breathy vowels appear in common vocabulary and are entirely invisible to a lip-reader.

4-way aspiration grid

  • Gujarati's four-way stop contrast — the same grid as other South Asian languages — is entirely invisible on the lips
  • Gujarati distinguishes voiceless unaspirated (p, t, k), voiceless aspirated (pʰ, tʰ, kʰ), voiced unaspirated (b, d, g), and voiced breathy or murmured (bʱ, dʱ, gʱ). All four produce the same lip shape. In a Gujarati lecture, these contrasts carry meaning throughout every sentence — and none of them are recoverable from lip movement alone.

Retroflex series

  • Gujarati's retroflex consonants are produced inside the mouth with no visible lip distinction from dentals
  • Gujarati has a full retroflex series (ટ, ઠ, ડ, ઢ, ણ) distinguishable only by tongue position from their dental counterparts. The retroflex is produced by curling the tongue back — a movement entirely inside the mouth. In a Gujarati university lecture, retroflex-dental contrasts appear throughout and are all invisible.

Dialectal variation

  • Saurashtra, Kathiawadi, Surti, and northern Gujarat varieties all produce different phonological profiles in the lecture hall
  • Gujarati has regional varieties: Saurashtra/Kathiawadi (western peninsula), Surti Gujarati (Surat), northern Gujarat varieties, and the urban Ahmedabad register. Each has different vowel quality, consonant realization, and prosodic patterns. A deaf student calibrated to Ahmedabad Gujarati encounters different lip profiles when the lecturer grew up speaking Saurashtra or Surti variety.

Gujarati-Hindi-English mixing

  • Ahmedabad and Surat university lectures mix Gujarati, Hindi, and English — shifting phonological systems mid-sentence
  • University lectures in Gujarat routinely mix Gujarati with Hindi for common academic framing and with English for technical vocabulary. Each code-switch changes the phonological system and lip profile. A deaf student must track three distinct systems simultaneously — with the switch happening precisely when the conceptual or technical content is most important.

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The Challenge

63 million with hearing loss in India — Gujarat's university lecture halls have no captioning provision

India has approximately 63 million people with significant auditory loss nationally. Gujarat — with a population of over 70 million — carries a proportionate share. The National Family Health Survey (NFHS-5, 2019–21) documented disability prevalence across Indian states, and research published in PMC (PMC11566452) confirmed that existing surveys systematically undercount hearing impairment — the true prevalence is substantially higher than census figures suggest. India has approximately 250 trained sign language interpreters for this population, making systematic university-level provision structurally impossible.

Gujarat has a large and internationally active Gujarati diaspora in the UK, USA, East Africa, and Southeast Asia — communities that maintain strong ties to Gujarat's universities and send students back for higher education. For deaf and hard of hearing Gujarati-speaking students, the lecture hall is the most acute access gap: Gujarati is phonologically demanding (with its unique breathy vowel contrasts and four-way stop grid), delivered in a diglossic academic register, and mixed with Hindi and English in ways that change the phonological landscape continuously — all without captioning.

Research on disability among school children across India (PMC12199054) found hearing impairment affecting approximately 9.9% of disabled school-age children. For those children in Gujarat who navigate primary school with hearing difficulty, the transition to university brings dramatically increased language complexity — academic Gujarati, code-switching, and fast delivery — with no corresponding increase in accessibility support. The Rights of Persons with Disabilities Act 2016 created a framework for educational inclusion, but implementation at the university lecture-hall level has not followed.

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Privacy

What you hear stays with you.

Gone the moment it ends

Captio AI processes your audio in real time and discards it immediately. Nothing is recorded. Nothing is kept.

Not a product

Your conversations are not something Captio AI sells, shares, or monetizes — to anyone, for any reason.

Not used to train anything

What you say in a doctor's appointment or a job interview never ends up in a training dataset. Not ours. Not anyone else's.

100% PRIVATE

Private by default

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Reviews

People love Captio AI

"Gujarat University lectures mix Gujarati, Hindi, and English constantly. Three phonological systems in one lecture. Captio AI handles all three accurately. I follow every switch now."

Priya P. 🇮🇳
priya.p***@gmail.com
Hard of hearing, Ahmedabad

"UK Gujarati mixes English and Gujarati differently from India. Captio AI handles both. Community events and family conversations in Leicester are finally accessible to me."

Rohan S. 🇬🇧
rohan.s***@gmail.com
Hard of hearing, Leicester

"Surti Gujarati sounds different from Ahmedabad Gujarati on the lips. Captio AI handles both varieties. MS University Baroda lectures — with professors from across Gujarat — are all covered."

Nisha M. 🇮🇳
nisha.m***@gmail.com
Deaf student, Surat

"American Gujarati community events and university courses both use Gujarati-English mixing. Captio AI follows it without any adjustments. I stopped sitting at the back and missing everything."

Arjun D. 🇺🇸
arjun.d***@gmail.com
Hard of hearing, New Jersey

"Gujarat University lectures mix Gujarati, Hindi, and English constantly. Three phonological systems in one lecture. Captio AI handles all three accurately. I follow every switch now."

Priya P. 🇮🇳
priya.p***@gmail.com
Hard of hearing, Ahmedabad

"UK Gujarati mixes English and Gujarati differently from India. Captio AI handles both. Community events and family conversations in Leicester are finally accessible to me."

Rohan S. 🇬🇧
rohan.s***@gmail.com
Hard of hearing, Leicester

"Surti Gujarati sounds different from Ahmedabad Gujarati on the lips. Captio AI handles both varieties. MS University Baroda lectures — with professors from across Gujarat — are all covered."

Nisha M. 🇮🇳
nisha.m***@gmail.com
Deaf student, Surat

"American Gujarati community events and university courses both use Gujarati-English mixing. Captio AI follows it without any adjustments. I stopped sitting at the back and missing everything."

Arjun D. 🇺🇸
arjun.d***@gmail.com
Hard of hearing, New Jersey

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FAQ

Frequently asked questions

Follow every lecture in Gujarati.

Captio AI is free to start

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