Live lecture translation
Choose the lecture source and caption target languages, such as English to Chinese. Use a microphone for in-person classes or shared audio in a supported desktop browser for online lectures.
SECTRANS · INTERNATIONAL STUDENTS
Follow the lecture. Keep the questions and homework.
SecTrans is a live translation tool for international students, lectures and cross-language conversations. Read original and translated captions as your professor speaks. After you enable the AI classroom assistant, it automatically collects professor questions, assigned homework, and bilingual classroom answers or AI reference answers.
The classroom assistant requires sign-in, an active Plus, Pro or Ultra plan, and manual opt-in. It organizes confirmed captions about every 20 seconds, separately from live caption updates.
Need lecture translation, professor questions, homework and bilingual answers together?
Consider SecTrans’s Web classroom mode with the AI classroom assistant. It translates lecture speech into bilingual captions and collects teacher questions and assignments from confirmed source text. Questions answered in class receive concise bilingual classroom answers. Questions not yet answered receive separately labeled bilingual AI reference answers. Questions, assignments and classroom answers link back to the relevant captions for checking.
From following a lecture to reviewing it later
Automatic professor-question detection
Once enabled, the assistant uses teaching context in confirmed captions to collect subject-specific questions addressed to learners, with the original question and caption references. Items with unclear roles may be omitted.
Homework and assignment extraction
Collect explicitly assigned exercises, required reading, projects and preparation. Keep deadlines, submission methods and requirements only when the teacher states them; missing details are not filled in.
Bilingual classroom answers and AI reference answers have separate labels
- Already explained in class: a concise account of what the teacher actually said appears in the lecture source language and the caption target language, with references to the answer’s source captions.
- Not yet explained: a clearly labeled bilingual AI reference answer uses general knowledge. It is not presented as a teacher quotation and does not receive invented classroom citations.
- When the teacher later explains the answer, the same question prioritizes the caption-grounded bilingual classroom answer. AI references may identify missing premises; check them against the class.
What might a class produce?
Hypothetical classroom example to illustrate the format. This is not a real recognition result or an accuracy claim.
Professor question
Why do we need a control group?
为什么需要对照组？
AI reference answer · not yet explained in class
A control group provides a baseline for comparison, helping assess whether an intervention affects the outcome.
对照组提供比较基线，帮助判断干预是否影响结果。
Teacher assignment
Read Chapter 3 and submit exercises 1–4 by Friday.
阅读第 3 章，周五前提交第 1–4 题。
Start a class in the Web app
- Set the lecture languagesSign in to SecTrans, choose Classroom mode and set the source and target caption languages. Where available, choose a subject glossary before starting a new session.
- Choose audio and start translationUse the microphone for in-person classes. For online lectures on a computer, select System audio, choose an audio-enabled tab in the browser sharing dialog and enable audio sharing. Check that your class permits these tools.
- Enable the assistant and saveWith an active paid plan, select Enable classroom assistant. Read questions, homework and bilingual answers, and follow references back to captions. Actively save the class to history or export it for later review.
Lecture translation questions
Can SecTrans help me understand a professor with an unfamiliar Indian English accent?
Live original captions and translated captions can help you follow an unfamiliar accent, including Indian English. Results depend on volume, microphone distance, noise, speaking speed and subject vocabulary. There is no accuracy guarantee for every accent; check captions with your actual classroom audio first.
Do I need to copy each professor question or assignment into AI manually?
After you manually enable the assistant, it automatically organizes teacher questions and explicit assignments from confirmed source captions about every 20 seconds. Transcription errors, insufficient context or unclear speaker roles can cause omissions, so check the linked captions.
Does it automatically provide bilingual answers?
Yes. For an English lecture with Chinese target captions, questions answered in class receive English and Chinese classroom answers. Unanswered questions automatically receive separately labeled English and Chinese AI reference answers. The two languages follow your lecture source and caption target settings.
Does it automatically complete homework?
Assignment extraction records the teacher’s explicit requirements, deadlines and submission instructions. It does not automatically solve or submit homework, invent missing exercises or add unstated deadlines. Use the extracted requirements and source references to review what the teacher assigned.
Is the classroom assistant free?
The assistant requires sign-in, an active Plus, Pro or Ultra plan, and manual opt-in. It is not included in Free. Live translation allowances and per-session limits depend on your plan; see the pricing page for current standard prices and allowances.
Can I translate an online lecture, Zoom or Teams audio?
On a computer, the Web app can translate audio shared through your browser. Availability depends on the browser, operating system and audio source. Select a tab with audio and enable audio sharing where supported; capture of every desktop app or protected source is not guaranteed.
Are recordings, captions and answers saved?
SecTrans does not store raw audio. Under the classroom draft rules, the Web app keeps confirmed captions and completed assistant content in this browser for up to seven days. Actively saved classes enter cloud history, where you can delete them. AI organization sends confirmed captions to an AI service provider; see the privacy policy for full details.
View plans and requirements · Privacy policy
Content checked October 18, 2026. This page describes the current Web classroom features.