Captio AI
🦻 Accessibility + 💻 Productivity App

Finnish 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

Large lecture halls at the University of Helsinki, Aalto University, and the University of Tampere — Finnish-medium instruction at full academic pace. Captio AI captions the professor in real time.

🔬Seminars and tutorials

Seminars and harjoitukset (tutorial sessions) where discussion is in Finnish, often with English research terminology. Captio AI handles both without manual switching.

💻Online and recorded lectures

Recorded lectures on university portals (Moodle, MyCourses) or shared as video files — play on speaker and Captio AI captions whatever is playing in real time.

📚Study groups

Study groups reviewing Finnish lecture material in student accommodation. Captio AI captions whoever is speaking.

🌍Foreign-language and international courses

Lectures from eastern Finnish faculty (Kuopio, Joensuu) whose Finnish carries Savo dialectal features. Captio AI handles southern, western, and eastern Finnish varieties.

🎤Guest speakers and public talks

Online courses and webinars delivered by Finnish universities in Finnish or English. Captio AI captions any audio source in real time.

Performance

Most accurate and fastest models

Finnish
89.4%

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.

Finnish

Why Finnish is hard to understand

Vowel length

  • Finnish phonemic vowel length changes meaning — the distinction is purely acoustic
  • Finnish has phonemically distinct short and long vowels: 'tuli' (fire) versus 'tuuli' (wind), 'kisa' (contest) versus 'kiisa' (problem). Vowel length is an acoustic duration property with no visual correlate. In a Helsinki or Tampere lecture hall, vowel length carries meaning throughout the professor's delivery but leaves no trace in lip movement that a deaf student can track.

Consonant gemination

  • Finnish geminated consonants are a meaning-bearing distinction — invisible on the lips
  • Finnish has phonemic consonant gemination across most consonant categories: 'kukka' (flower) versus 'kuka' (who), 'tappo' (killing) versus 'tapo' (manner). The distinction is in consonant duration — a purely acoustic property. A deaf student watching Finnish lip movements cannot distinguish single from double consonants anywhere in the lecture.

Vowel harmony

  • Finnish front and back vowel harmony — rounded pairs look alike at lecture speed
  • Finnish has front-back vowel harmony: words contain either front vowels (/y/, /ø/, /æ/) or back vowels (/u/, /o/, /a/). The rounded front vowels /y/ and /ø/ and rounded back vowels /u/ and /o/ all require lip rounding, producing overlapping lip shapes at lecture speed. A deaf student cannot reliably distinguish /y/ from /u/ or /ø/ from /o/ from the front at academic pace.

Eastern-Western dialect split

  • Savo and southeastern Finnish sounds different from southern and western Finnish
  • Eastern Finnish dialects — Savo (Kuopio, Joensuu) and Southeastern — differ from Southern Finnish (Helsinki, Turku) and Western Finnish in vowel quality, some consonant realisations, and prosody. A deaf student calibrated to Helsinki Finnish finds Joensuu or Kuopio faculty presenting different vowel lip positions for the same standard written word.

Colloquial contraction

  • Colloquial Finnish contracts forms that look nothing like the written language
  • Colloquial Finnish — puhekieli — used in informal academic settings contracts common forms: 'minä' → 'mä', 'sinä' → 'sä', 'on ollut' → 'on ollu'. These contracted forms look and sound nothing like formal written Finnish. In a seminar or study group at a Finnish university, colloquial Finnish dominates the informal speech that carries as much information as the formal lecture.

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The Challenge

Finland recognised sign language first in 1995 — and still cannot provide every deaf student with a university interpreter

Finland included Finnish Sign Language in the Finnish Constitution in 1995 — one of the earliest constitutional recognitions of any sign language in the world — and passed the Finnish Sign Language Act in 2015. Kela (the Finnish Social Insurance Institution) funds interpretation services for deaf and hard of hearing people. Despite this strong legal framework, the registration of disability data is limited in Finland, meaning accurate national statistics on hearing loss prevalence are not centrally maintained.

A 2025 population-based multistate analysis of hearing loss in Finland (Oxford Academic, Age and Ageing) examined the lifetime risk and years lived with hearing loss in the Finnish population, confirming hearing loss as a significant chronic condition affecting quality of life and healthcare utilisation across the lifespan. Kela's interpretation services are available for employment and daily activities, but specialised academic interpreter provision for university students — particularly in technical, scientific, and professional fields — is limited by interpreter availability and specialisation.

Finnish universities operate under accessibility legislation and provide disability support, but the gap between legal entitlement and practical provision is most visible in specialised academic settings: a deaf student at Aalto University in engineering or the University of Helsinki in medicine encounters highly specialised Finnish academic register that few interpreters can fully cover. Captio AI captions Finnish lecture speech in real time — in Helsinki, Tampere, or Joensuu — handling both formal academic Finnish and the colloquial puhekieli of Finnish seminar rooms.

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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

"Finnish vowel length changes word meaning and is invisible on the lips. 'Tuli' and 'tuuli' look identical. Captio AI gets the length distinction right every time. Helsinki lectures make sense now."

Siiri H. 🇫🇮
siiri.h***@gmail.com
Hard of hearing, University of Helsinki

"Technical Finnish at Aalto uses gemination constantly. 'Kukka' and 'kuka' are different words that look the same. Captio AI captures the duration acoustically. Engineering lectures are accessible."

Mikko R. 🇫🇮
mikko.r***@gmail.com
Deaf since birth, Aalto University, Espoo

"My professor lectures in colloquial Finnish — mä, sä, ollu. Completely different from written standard. Captio AI transcribes what is actually said. Tampere seminars are accessible now."

Liisa K. 🇫🇮
liisa.k***@gmail.com
Hard of hearing, University of Tampere

"Savo Finnish has different vowels from Helsinki. Captio AI handles both varieties without any setting changes. Eastern Finland lectures are as accessible as southern ones."

Eero V. 🇫🇮
eero.v***@gmail.com
Hard of hearing, University of Eastern Finland, Joensuu

"Finnish vowel length changes word meaning and is invisible on the lips. 'Tuli' and 'tuuli' look identical. Captio AI gets the length distinction right every time. Helsinki lectures make sense now."

Siiri H. 🇫🇮
siiri.h***@gmail.com
Hard of hearing, University of Helsinki

"Technical Finnish at Aalto uses gemination constantly. 'Kukka' and 'kuka' are different words that look the same. Captio AI captures the duration acoustically. Engineering lectures are accessible."

Mikko R. 🇫🇮
mikko.r***@gmail.com
Deaf since birth, Aalto University, Espoo

"My professor lectures in colloquial Finnish — mä, sä, ollu. Completely different from written standard. Captio AI transcribes what is actually said. Tampere seminars are accessible now."

Liisa K. 🇫🇮
liisa.k***@gmail.com
Hard of hearing, University of Tampere

"Savo Finnish has different vowels from Helsinki. Captio AI handles both varieties without any setting changes. Eastern Finland lectures are as accessible as southern ones."

Eero V. 🇫🇮
eero.v***@gmail.com
Hard of hearing, University of Eastern Finland, Joensuu

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FAQ

Frequently asked questions

Follow every lecture in Finnish.

Captio AI is free to start

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