Captio AI
🦻 Accessibility + 💻 Productivity App

Thai 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 the Queen Sirikit National Convention Center or BITEC in Bangkok, the speaker is distant and the hall is loud. Point Captio AI toward the nearest PA speaker and read every word of the Thai keynote from any seat.

🔬Academic and research conferences

At an academic conference — a research congress at a Bangkok university or a scientific meeting in Chiang Mai — presenters speak fast and mix in terminology. Captio AI captions in real time and transcribes for later review.

💼Industry and professional events

Industry events, technology summits, and product launches in Bangkok carry content that affects your work. Captio AI captions every speaker so you follow the panel and miss nothing.

📋Workshops and breakout sessions

In a workshop or breakout, several voices contribute in Thai 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 breaks 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 in Thailand, sessions switch between Thai and English. Live Translator captions foreign-language talks in real time so you follow the full programme.

Performance

Most accurate and fastest models

Thai
90.5%

character 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.

Thai

Why Thai is hard to understand

Five tones

  • Meaning carried by pitch, not by the mouth
  • Thai has five tones — mid, low, falling, high, and rising — and the same syllable in different tones is a different word. Tone lives in pitch, with no lip cue, so a deaf attendee watching a distant keynote speaker sees the mouth but gets none of the tonal information that fixes the meaning of a technical term.

Close tone pairs

  • Tones that even the ear confuses without context
  • Some Thai tones sit perceptually close and are hard to tell apart when context is missing. For a deaf attendee relying on the lips, these near-identical tones are completely invisible, so in a dense talk a whole set of words collapses into one indistinguishable shape.

Vowel length

  • Short and long vowels that change the word
  • Thai contrasts short and long vowels — a long vowel lasts about twice as long as a short one, and the difference is phonemic. This is a timing distinction, not a lip shape, so at podium pace a deaf attendee cannot see which of two terms was said.

Unaspirated stops and final stops

  • Consonants with little or no visible release
  • Thai has a voiceless unaspirated stop series and unreleased final stops that give a lip-reader almost no visible cue. These distinguish words, so from an audience seat a deaf attendee cannot see the consonants that separate one term from another.

Thai–English code-switching

  • Technical English inside Thai sentences
  • Thai academic and industry talks drop English terms into Thai sentences constantly, often reshaped to Thai sound patterns. A deaf attendee lip-reading Thai meets a term that is neither fully Thai nor clearly English on the lips, switching systems with no visual warning.

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The Challenge

Hearing loss and professional access in Thailand

Hearing loss is widespread in Thailand and rises steeply with age. A recent hearing-health survey in Bangkok found hearing loss in around 53% of residents overall, with moderate or greater impairment in 2.8%, while a national cohort of tens of thousands of adults found roughly 8.5% reporting trouble hearing. Uptake of support is limited, and studies of older Thais document low rates of hearing-aid use relative to need — leaving a large professional population navigating working life on unaided hearing.

Thailand hosts a major regional conference and events sector — the academic congresses of Bangkok and Chiang Mai, the technology and industry summits at venues like the Queen Sirikit National Convention Center and BITEC. These run on spoken Thai delivered over PA systems, with English woven into technical sessions. Real-time Thai captioning of keynotes, panels, and Q&A is rarely provided, and where any accessibility exists it does not reach the breakouts and networking where professional value is built.

Captio AI closes that gap. Point the phone toward the PA and read every Thai keynote and panel answer from any seat, record a dense session for the full transcript, and follow the conversations over a coffee break — so a deaf professional in Bangkok or Chiang Mai 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

"The keynote at Queen Sirikit was fast Thai, five tones, delivered from a far stage. I caught almost nothing. Captio AI captioned it from my seat and I recorded the session. I followed a full congress talk for the first time."

Somchai P. 🇹🇭
somchai.p***@gmail.com
Hard of hearing, Bangkok — academic researcher

"Thai tech talks drop English terms into Thai on every point. Captio AI captioned both from my seat without me switching anything. I read the whole session and knew exactly what the launch meant for my team."

Nattaya S. 🇹🇭
nattaya.s***@gmail.com
Deaf, Bangkok — industry conference attendee

"The tones give me nothing on the lips and some of them sound almost the same anyway. Captio AI captioned every audience question at the panel. As a panellist I answered what was actually asked instead of guessing."

Anan K. 🇹🇭
anan.k***@gmail.com
Hard of hearing, Chiang Mai — panellist

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

Pim T. 🇹🇭
pim.t***@gmail.com
Deaf, Bangkok — startup founder

"The keynote at Queen Sirikit was fast Thai, five tones, delivered from a far stage. I caught almost nothing. Captio AI captioned it from my seat and I recorded the session. I followed a full congress talk for the first time."

Somchai P. 🇹🇭
somchai.p***@gmail.com
Hard of hearing, Bangkok — academic researcher

"Thai tech talks drop English terms into Thai on every point. Captio AI captioned both from my seat without me switching anything. I read the whole session and knew exactly what the launch meant for my team."

Nattaya S. 🇹🇭
nattaya.s***@gmail.com
Deaf, Bangkok — industry conference attendee

"The tones give me nothing on the lips and some of them sound almost the same anyway. Captio AI captioned every audience question at the panel. As a panellist I answered what was actually asked instead of guessing."

Anan K. 🇹🇭
anan.k***@gmail.com
Hard of hearing, Chiang Mai — panellist

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

Pim T. 🇹🇭
pim.t***@gmail.com
Deaf, Bangkok — startup founder

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FAQ

Frequently asked questions

Follow every speaker in Thai.

Captio AI is free to start

Download for free

Download on theApp Store