Captio AI
🦻 Accessibility + 💻 Productivity App

French live captions and productivity tool for conferences & events

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.

🎤Keynotes and main stage talks

From a far seat in a keynote hall at Paris Expo Porte de Versailles or a venue in Lyon, the speaker is distant and the French is fast. Point Captio AI toward the nearest PA speaker and read every word of the keynote from any seat.

🔬Academic and research conferences

At an academic conference — a research congress at a Paris university or a scientific meeting in Geneva — presenters speak quickly and pack talks with terminology. Captio AI captions in real time and transcribes for later review.

💼Industry and professional events

Industry events, technology summits like Viva Technology, and product launches in Paris carry content that affects your work. Captio AI captions every speaker so you follow the panel.

📋Workshops and breakout sessions

In a workshop or breakout, several voices contribute in French from around the table. Place Captio AI on the table and follow every contribution, including from the back of the room.

🤝Networking and informal sessions

The most useful conversations often happen over coffee and at the conference dinner. Captio AI works in these noisy, informal settings the same way it does in the main hall.

🌍International and multilingual events

At an international conference, sessions switch between French and English. Live Translator captions foreign-language talks in real time so you follow the full programme.

Performance

Most accurate and fastest models

French
94.3%

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 room where you cannot ask anyone to repeat

Live captions from any seat

Point the phone toward the nearest PA output or speaker. Captio AI captions whoever is presenting in real time — from the front row or the back of a large conference hall.

Works without venue infrastructure

No hearing loop, no captioning service, no advance booking required. Captio AI works independently via microphone — whether or not the venue has provided any accessibility infrastructure.

Covers what official captioning does not

Official captioning, where it exists, typically covers the main stage only. Q&A sessions, workshops, breakouts, and networking are usually left uncaptioned. Captio AI covers all of it.

Record and review after

Record any session and upload it to Audio Transcription for a full written record. Use AI Summary to extract key takeaways — useful for dense technical content you want to process at your own pace.

60+ languages

For international conferences, foreign-language keynotes, or multilingual panels. Live Translator captions and translates in real time across 60+ languages with no manual switching between speakers.

Works for networking too

The conversations in hallways and at lunch matter as much as the sessions. Captio AI works in any setting — informal, noisy, unstructured — the same way it works in the main hall.

French

Why French is hard to understand

Nasal vowels

  • Vowels made in the nose, not on the lips
  • French relies on nasal vowels — the sounds in 'information', 'conception', 'ensemble'. Nasalization happens at the soft palate with little visible lip movement, and conference vocabulary is full of these endings, so a deaf attendee watching a distant speaker misses a contrast that changes the word.

Liaison and enchaînement

  • Words that run together across boundaries
  • In French, normally silent final consonants resurface and link onto the next word, and words chain together so boundaries blur. A deaf attendee cannot see where one word ends and the next begins, and at the pace of a keynote a whole phrase becomes one continuous, unreadable stream.

Silent letters

  • Speech and spelling that behave like two languages
  • Most word-final consonants in French are silent, so what is written and what is spoken diverge sharply. A deaf attendee cannot fall back on an expected ending to anchor a term, because the ending is not pronounced at all — until liaison suddenly brings it back.

Regional and national varieties

  • Paris, Brussels, Geneva, and Montreal differ
  • An international French conference brings metropolitan French, Belgian, Swiss, and Québécois speakers to the same stage, differing in vowels, rhythm, and intonation. A deaf attendee calibrated to Paris French finds a Montréal or Brussels presenter carries different vowel shapes on the lips.

French–English code-switching

  • Technical English inside French sentences
  • French academic and industry talks drop English terms into French sentences constantly, especially in technology and science. A deaf attendee lip-reading French meets English phonology on the key vocabulary, then returns to French, with no visual signal of the switch.

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The Challenge

Hearing loss and professional access in the French-speaking world

In France, research from Inserm and the large CONSTANCES cohort finds that around 25% of adults have some form of hearing loss, with disabling hearing loss affecting roughly 4% — over six million people facing hearing difficulty in daily life. Around 180,000 define themselves as deaf, about half of whom use French Sign Language, and even among those with severe hearing loss, only around 37% wear a hearing aid. Belgium, Switzerland, and Québec add further French-speaking populations navigating the same barriers.

The French-speaking world hosts a dense calendar of congresses and events — the academic conferences of Paris, Lyon, Brussels, and Geneva, technology summits like Viva Technology, and the industry events of a major professional economy. These run on spoken French delivered over PA systems, with English woven into technical sessions. Real-time French captioning of keynotes, panels, and Q&A is rarely provided, and where captioning exists it covers the main stage, not the breakouts and networking where professional value is built.

Captio AI closes that gap. Point the phone toward the PA and read every French keynote and panel answer from any seat, record a dense session for the full transcript, and follow the conversations over coffee — so a deaf professional in Paris or Geneva gets the same value from the same conference as everyone in the hall.

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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

"French keynotes chain every word together with liaison, so from the back of the hall it is one long stream I cannot break into words. Captio AI captioned it from my seat and I recorded the session. I followed a full congress talk for the first time."

Camille D. 🇫🇷
camille.d***@gmail.com
Hard of hearing, Paris — academic researcher

"The panel had Paris, Brussels, and Geneva speakers, all different on the lips, plus English terms dropped in. Captio AI captioned all of it without me adjusting. I read the whole discussion instead of catching only the accent I knew."

Lucas M. 🇧🇪
lucas.m***@gmail.com
Deaf, Brussels — industry conference attendee

"Nasal vowels give me nothing on the lips and the Q&A moves fast. Captio AI captioned every answer as the mic went around the room. I left the launch knowing exactly what changed, not waiting for a colleague to summarise."

Chloé R. 🇫🇷
chloe.r***@gmail.com
Hard of hearing, Lyon — product manager

"Networking over coffee is where the real conversations happen, and it used to be where I switched off. Captio AI captioned the informal chats at the reception so I could take part. That is where I met my first investor."

Antoine G. 🇨🇭
antoine.g***@gmail.com
Deaf, Geneva — startup founder

"French keynotes chain every word together with liaison, so from the back of the hall it is one long stream I cannot break into words. Captio AI captioned it from my seat and I recorded the session. I followed a full congress talk for the first time."

Camille D. 🇫🇷
camille.d***@gmail.com
Hard of hearing, Paris — academic researcher

"The panel had Paris, Brussels, and Geneva speakers, all different on the lips, plus English terms dropped in. Captio AI captioned all of it without me adjusting. I read the whole discussion instead of catching only the accent I knew."

Lucas M. 🇧🇪
lucas.m***@gmail.com
Deaf, Brussels — industry conference attendee

"Nasal vowels give me nothing on the lips and the Q&A moves fast. Captio AI captioned every answer as the mic went around the room. I left the launch knowing exactly what changed, not waiting for a colleague to summarise."

Chloé R. 🇫🇷
chloe.r***@gmail.com
Hard of hearing, Lyon — product manager

"Networking over coffee is where the real conversations happen, and it used to be where I switched off. Captio AI captioned the informal chats at the reception so I could take part. That is where I met my first investor."

Antoine G. 🇨🇭
antoine.g***@gmail.com
Deaf, Geneva — startup founder

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FAQ

Frequently asked questions

Follow every speaker in French.

Captio AI is free to start

Download for free

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