Captio AI
🦻 Accessibility + 💻 Productivity App

Bulgarian live captions and productivity tool for meetings

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.

🔄Stand-ups and team syncs

Daily екипни срещи and stand-ups in Bulgarian offices where updates come in Bulgarian or English. Captio AI captions each speaker so you follow every item.

📹Video calls

Teams or Zoom calls with colleagues locally or internationally. Put the call on speaker and read captions in real time.

🎯One-on-ones and reviews

Оценки на представянето and one-on-one sessions with a ръководител. Important conversations where every word matters. Captio AI transcribes everything.

🎤All-hands and town halls

Company-wide общи събрания where management addresses all staff. Captio AI captions every word from any seat.

🌍International and multilingual meetings

Meetings that mix Bulgarian and English — common in Sofia's tech and outsourcing sector. Live Translator follows any switch in real time.

Informal catch-ups

Coffee break conversations, desk-side questions, corridor catch-ups. The informal moments in Bulgarian offices where working relationships are built. Captio AI covers those too.

Performance

Most accurate and fastest models

Bulgarian
94.4%

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 speed of a real meeting

Captions while they are still speaking

Words appear on screen as each person talks — not after they finish. You read what someone is saying at the same moment everyone else hears it.

Works in any meeting format

Conference rooms, open-plan offices, video calls, all-hands. Place the phone on the table or hold it — Captio AI handles the rest.

Handles fast speech and crosstalk

Captio AI is designed for real meetings, not controlled dictation. It follows whoever is speaking loudest at any moment, keeping up with the natural pace of discussion.

No setup, no explaining

Open the app and place the phone. No pairing, no telling colleagues what you are doing, no requesting anything from the meeting organiser.

Review everything after

Record the meeting and upload it to Audio Transcription for a full written record. Use AI Summary to extract decisions and action items so nothing from the meeting gets lost.

60+ languages

For international teams, multilingual meetings, or colleagues who switch between languages mid-discussion. No setup required — Captio AI detects and captions in real time.

Bulgarian

Why Bulgarian is hard to understand

Palatalization pairs

  • Bulgarian's 22 consonants include systematic hard/soft palatalization pairs that produce near-identical lip shapes but different sounds
  • Bulgarian's consonant system uses palatalization — the distinction between a hard consonant and its soft palatalised counterpart — as a phonemic contrast. These pairs are articulated with subtle tongue-body differences that produce no visible lip change. In a meeting, a deaf or hard of hearing person lip-reading Bulgarian cannot distinguish hard from soft consonants, creating systematic ambiguity across every word that relies on this distinction.

Eastern vs Western dialect

  • Eastern Bulgarian preserves vowels that Western Bulgarian (including Sofia) compresses — creating a visual mismatch in cross-regional meetings
  • Bulgaria's dialectal divide runs along an East-West axis: Eastern dialects preserve a stressed vowel inventory close to written standard, while Western dialects — including Sofia-influenced speech — compress and shift these vowels. In a meeting connecting colleagues from Varna, Plovdiv, and Sofia, a deaf lip-reader encounters systematically different vowel shapes for the same words depending on the speaker's regional origin.

Syllabic liquids

  • Syllabic /r/ and /l/ function as vowel nuclei in Bulgarian — producing near-empty visual frames on the lips for an entire syllable
  • Syllabic liquids /r/ and /l/ function as syllable nuclei in Bulgarian — words can have these consonants carrying the vowel role. Their articulation produces a brief mid-central position indistinguishable from other neutralized vowels at meeting pace. A hard of hearing person lip-reading a word with a syllabic liquid sees a near-empty visual frame where a meaningful segment should be.

Unstressed vowel reduction

  • Unstressed vowels reduce heavily in Bulgarian at meeting pace, removing grammatical suffixes from the visual channel
  • In natural spoken Bulgarian, unstressed vowels — particularly /a/ and /e/ — reduce toward a central schwa. In a meeting, the grammatical suffixes encoding plural, definiteness, and verb person are unstressed and reduce to near-invisibility. A deaf or hard of hearing person reading the lips of a Bulgarian speaker in a fast meeting loses the grammatical information carried by these reduced endings.

Bulgarian–English code-switching

  • Sofia's technology and business sector embeds English terms into Bulgarian sentences, creating mid-sentence phonological shifts
  • Bulgaria's growing technology sector produces a corporate register where English management, IT, and financial vocabulary is integrated directly into Bulgarian sentences. In a Sofia office meeting, a sentence may begin in Bulgarian and end with English terms delivered with English phonology — a shift that disrupts the lip-reading pattern a deaf person has been tracking.

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The Challenge

Hearing loss and workplace exclusion in Bulgaria

There are approximately 12,000 deaf sign language users in Bulgaria, supported by only 46 working sign language interpreters — one of the lowest interpreter-to-deaf-population ratios in the European Union, according to the EUD member country profile. Bulgarian Sign Language (BgSL) received formal legal recognition on 21 January 2021 under the Bulgarian Sign Language Act, marking a significant milestone for the deaf community. However, the gap between legal recognition and practical workplace accessibility is substantial: with 46 interpreters for 12,000 users, formal meeting interpretation is structurally inaccessible for most deaf professionals.

Bulgaria ratified the UN Convention on the Rights of Persons with Disabilities in 2012, establishing a framework for workplace accommodation. Yet research on the Bulgarian deaf community documents persistent challenges: societal attitudes continue to frame deafness as a condition requiring correction rather than a linguistic minority identity, and deaf children historically received oralist education that suppressed sign language use. Adults who received this oralist education may have developed neither strong sign language nor strong speech perception skills — placing them in professional settings where neither channel provides complete access.

Bulgaria's growing technology, business process outsourcing, and shared services sectors — concentrated in Sofia — operate in meeting-heavy professional cultures that have not yet integrated accessibility standards for deaf employees. The Bulgarian-English code-switching common in Sofia tech meetings adds a second phonological layer that compounds the accessibility challenge. For a deaf professional navigating a Sofia boardroom without interpreter access, every meeting represents a structural exclusion from the decisions made in that room.

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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

"Sofia tech standups mix Bulgarian and English every few sentences. Captio AI captions both languages in real time. I catch every sprint decision without needing to rely on a colleague to relay what was said."

Georgi P. 🇧🇬
georgi.p***@gmail.com
Hard of hearing, IT company, Sofia

"Fast Bulgarian in a meeting is impossible to lip-read — the palatalized consonants all look the same and the vowels reduce. Captio AI gives me the full text in real time. Team meetings are accessible for the first time in my career."

Ivanka T. 🇧🇬
ivanka.t***@gmail.com
Deaf since childhood, BPO company, Sofia

"Plovdiv Eastern Bulgarian sounds different from Sofia standard and no previous tool handled it. Captio AI handles the regional accent accurately. The weekly production briefing is accessible and I follow every instruction."

Dimitar N. 🇧🇬
dimitar.n***@gmail.com
Hard of hearing, manufacturing company, Plovdiv

"Finance meetings in Sofia use formal Bulgarian mixed with English terms. The soft consonant pairs are invisible on the lips and I was missing half of every sentence. Captio AI captures the full meeting accurately."

Maria K. 🇧🇬
maria.k***@gmail.com
Hard of hearing, finance company, Sofia

"Sofia tech standups mix Bulgarian and English every few sentences. Captio AI captions both languages in real time. I catch every sprint decision without needing to rely on a colleague to relay what was said."

Georgi P. 🇧🇬
georgi.p***@gmail.com
Hard of hearing, IT company, Sofia

"Fast Bulgarian in a meeting is impossible to lip-read — the palatalized consonants all look the same and the vowels reduce. Captio AI gives me the full text in real time. Team meetings are accessible for the first time in my career."

Ivanka T. 🇧🇬
ivanka.t***@gmail.com
Deaf since childhood, BPO company, Sofia

"Plovdiv Eastern Bulgarian sounds different from Sofia standard and no previous tool handled it. Captio AI handles the regional accent accurately. The weekly production briefing is accessible and I follow every instruction."

Dimitar N. 🇧🇬
dimitar.n***@gmail.com
Hard of hearing, manufacturing company, Plovdiv

"Finance meetings in Sofia use formal Bulgarian mixed with English terms. The soft consonant pairs are invisible on the lips and I was missing half of every sentence. Captio AI captures the full meeting accurately."

Maria K. 🇧🇬
maria.k***@gmail.com
Hard of hearing, finance company, Sofia

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FAQ

Frequently asked questions

Follow every word in Bulgarian.

Captio AI is free to start

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