AI LECTURE TRANSLATOR

Understand every lecture,even in your second language.

Lectures in a second language. Seminars you can follow. Office hours in your language

Felo listens as the lecturer talks, translates into your language in real time, and keeps the whole class as a bilingual transcript you can study from afterwards.

Try Lecture Translation Free

Explore Felo Translator

App Store 4.4★·16 languages·Helped 100,000+ international students·ISO 27001 & GDPR·Free to try

Studying abroad English-taught courses International school

Live bilingual lecture

English ⇄ 中文

00:42

Depreciation spreads an asset's cost over its useful life.折旧就是把资产的成本分摊到它的使用寿命里。

05:10

This will be on the midterm, so write it down.这个期中考试会考，记下来。

12:33

Any questions before we move to the next chapter?进入下一章之前有什么问题吗？

18:05

Submit the problem set by Friday.习题集周五之前交。

A class, from start to finish

Before

Set your language pair

Pick the language the lecture is in and the language you think in, and Felo listens for both in the same session.

Put the phone where it can hear

Beside the notebook, screen toward you. One phone is enough - no cables, no setup.

During

Live bilingual subtitles

Each sentence appears in your language as it is spoken, so you never lose the thread of the lecture.

Mark what matters

Write the term and where it came up. The transcript keeps the rest, so you are not transcribing by hand.

After

The transcript is saved

The whole lecture stays on your device, with the original words and the translation together.

Run a recording through

Play back a lecture you recorded, and Felo writes down both sides - so a class you missed still becomes notes.

Where the lecture gets hard

The setup is the same for all three.

Studying abroad

Lectures, seminars, and office hours in a second language - follow the class and keep a record you can revise from.

English-taught courses

A full degree taught in English: live subtitles during class, and a bilingual transcript for the terminology.

International school

Subject classes with a foreign teacher: subtitles through the lesson, and a transcript to replay at home.

What Felo brings to class

Live subtitles, both languages

What the lecturer says shows up in your language as it is spoken - no waiting for a summary.

16 languages

Japanese, Korean, Chinese, German, French, Spanish, Thai, Vietnamese, Russian, Nepali, and more.

Bilingual transcript

The translation stays under the original, so the terminology never loses its source.

Saved, then studyable

Reopen the session before the exam, search it, and turn it into your own glossary.

Two ways to capture a lecture

In class

Phone beside the notebook, and Felo translates the lecture as it unfolds.

From a recording

Play a lecture you already recorded, and Felo writes down both sides as the audio runs.

16 languages, in every lecture hall

Japanese, Korean, Chinese, German, French, Spanish, Thai, Vietnamese, Russian, Nepali, and more - set the pair before class or switch it as you go.

KoreanJapaneseGermanEnglishChinese (Simplified)CzechThaiSpanishFrenchChinese (Traditional)ItalianRussianCantoneseIndonesianVietnameseNepali

Lecture translation at a glance

Languages16 - one chosen per side

What you seeLive subtitles in both languages - no waiting

After classBilingual transcript on your device - editable, readable aloud

PricingFree to try - plans are time-based

App Store reviews

“他のアプリと違い、聞き流しの状態で翻訳できるので、とても便利です”

“使えますわからない単語があっても、おまかせできます”

Security

ISO 27001 & GDPR · Encrypted transmission · Sessions stored temporarilyLearn more about Felo's security

FAQ

Can Felo translate a lecture as it happens?

Yes. Set the language the lecturer speaks and the language you want to read, and each sentence appears in your language as it is spoken. You follow the class live instead of reconstructing it afterwards.

Does it work for a full lecture, not just a short conversation?

Yes. Leave the session running for the whole class - the subtitles keep pace and the transcript keeps building. A two-hour lecture is one session.

Can I turn a recorded lecture into notes?

Yes. Play the recording and Felo writes down both sides as the audio runs, so a class you missed still becomes a bilingual transcript you can study from. Record only with the lecturer's permission and according to your school's rules.

Are the technical terms translated?

The sentence is translated, and the original stays underneath it in the transcript. For terminology, treat the translation as fast sense-making and confirm the term in the source language - which is what the bilingual transcript is for.

Which languages can I use in class?

Felo covers 16 languages, including Japanese, Korean, Chinese, German, French, Spanish, Thai, Vietnamese, Russian, and Nepali. Pick the pair before class, so you are not setting it up while the lecturer starts.

Is it free for students?

It is free to try on iOS and Android. Paid plans are time-based - a 2-hour plan, for example, stays valid for 30 days from purchase - and current prices appear on the App Store or Google Play subscription page.

Keep reading

Longer pieces on following a class in a second language.

Felo Translator for International Students

How students new to a country follow lectures, seminars, and office hours in a second language.

English-Taught Classes at University

A full degree taught in English: what changes in the lecture hall, and how to keep up with the terminology.

Felo Translator for International School Students

Subject classes with a foreign teacher, from the first lesson to the exam.

Lecture Notes Without the Hand Cramp

Turning a class you sat through - or a recording you made - into notes you can revise from.

Bring your next lecture into your language

Download Felo from the App Store or Google Play, set your language pair, and the next class is bilingual.

Get the app.

Scan the code with your smartphone camera to download it and start a free trial.

ISO/IEC 27001 certified. A secure environment trusted by enterprises and public institutions.

We publish our security information so you can use Felo with confidence.

Felo Translator