Lecture Transcription

Drop a Lecture Recording In, Walk to Your Next Class, Come Back to a Full Transcript

Upload Your First Lecture Free
Student uploading a lecture recording for AI transcription
Student listening to lecture audio while reading the transcript on a laptop

A Lecture Transcription Service Built Around How Students Actually Record Class

Most students don't have a fancy recording rig. They hit Voice Memos on their iPhone, set their laptop on the desk, or pull a Zoom recording out of Panopto and call it a day. PrismaScribe is built for that — drop the .m4a or .mp4 in, hit upload, and get the full transcript with speaker labels and word-level timestamps in roughly the time it takes to walk between buildings.

No more frantic note taking that turns half a lecture into a blur. No more scrubbing through a 90-minute recording at 1.5x trying to find the one sentence the professor said about the midterm. The transcript is searchable, editable, and exportable in six formats — TXT, SRT, VTT, PDF, Word, and Markdown — so the same recording becomes a study guide, a printable PDF, subtitles for a missed-class video, or notes you paste straight into your favorite app.

Why Students and Educators Pick PrismaScribe to Transcribe Lectures

98%+ Accuracy on Real Classroom Audio

AI transcription that holds up when the professor talks fast, the projector fan is loud, and three students ask questions at once. You get accurate text on technical terms, names, formulas, and citations — not garbled approximations. Cleaner audio gives cleaner transcripts, but the AI handles the messy reality of a lecture hall, not just studio recordings.

Speaker Identification for Up to 32 Voices

Seminar with eight people talking? Lab meeting with the whole research group? Q&A after a guest speaker? Speaker identification labels each voice automatically, and you rename them in the editor — Professor Chen, TA Maya, Student 3 — so the raw transcript reads like a play, not a wall of text. Useful for citing who said what later.

60 Minutes of Audio in About 2 Minutes

Upload after class, the transcript is ready before you've sat down for lunch. PrismaScribe processes one hour of audio in roughly two to three minutes, so you can transcribe lectures and start studying the same day — not over the weekend. Typing it out yourself takes hours per hour of recording. AI transcription costs nothing on the free plan and finishes while you grab coffee.

How Lecture Transcription Works

1

Upload Your Lecture Recording

Drag the audio or video file into the browser. PrismaScribe accepts 15+ file formats including MP3, MP4, M4A, WAV, AAC, OGG, FLAC, and MOV — basically whatever your phone, laptop, lecture capture system, or external recorder produced. Files up to 5GB and 8+ hours long work depending on your plan. No software to install. If your professor posted the lecture on YouTube, paste the link and PrismaScribe pulls the audio for you.
2

AI Transcribes With Speaker Labels and Timestamps

The AI detects the spoken language automatically, separates voices, and converts speech to text with word-level timestamps. Audio event tags pick up moments of laughter and applause so when you read the transcript a week later, the room doesn't feel flat — you remember the joke before the formula. Multilingual lectures and code-switching between languages don't break the transcript.
3

Edit, Generate Summaries, Export

Open the transcript in the editor, fix any term the AI misheard, rename speakers, and click any sentence to jump to that exact moment in the audio. One click generates a summary, a quiz, a flashcard deck, or a todo list from the lecture content. Export as TXT, SRT, VTT, PDF, Word, and Markdown — every format reflects your edits, including subtitle files for video lectures.
Start Transcribing Lectures
University student studying from a lecture transcript with highlighted key points
For Students

From 8 AM Physics to a Searchable Knowledge Base

Record on whatever device you already use. Most students record audio with the iPhone Voice Memos app or set their laptop on the desk during class. Some pull recordings from the official lecture capture system — Panopto, Echo360, Zoom, Google Meet, Teams. PrismaScribe transcribes all of it, no format conversion required.

Once the transcript exists, the lecture turns into something you can actually study. Search "Fourier transform" across 12 weeks of lectures and find every time it came up. Generate a summary the night before a midterm. Pull a slide-by-slide quiz from a 90-minute recording. Build flashcards for the medical terms you keep forgetting. International students reading in their second language can translate the transcript into their first and read both side by side.

Lecturer reviewing a transcribed seminar with speaker labels and timestamps
For Educators and Researchers

Make Every Lecture Accessible, Searchable, and Reusable

Educators get accessible content without manual work. Transcripts are how you support students who are deaf or hard of hearing, students with dyslexia or ADHD who learn better when they can read alongside the audio, and international students whose first language isn't yours. Posting a transcript next to the recording is the simplest way to meet ADA expectations.

Researchers and grad students use the same workflow for academic interviews, focus groups, conference talks, and field recordings. Speaker identification labels every voice in the room, exports come out in plain text or Word so they paste straight into whichever analysis tool you already use, and a two-hour interview is transcribed and ready to read in about five minutes — work that used to eat a whole afternoon.

Used Across Universities and Research Programs

What Students and Educators Say About PrismaScribe

Join thousands who've transformed their content workflow

"Organic chemistry was killing me until I started uploading every lecture. The transcript plus the auto-generated quiz let me self-test the same night. My exam grade jumped a full letter, and I stopped staying up until 2 AM rewriting notes."
AP

Aiden Park

Pre-Med Student at State University

Frequently Asked Questions

Real questions from students and educators using PrismaScribe to transcribe lectures

For clear recordings with one speaker and minimal background noise, accuracy lands at 98–99%. Real classroom audio — fast-talking professors, projector fans, three students with overlapping questions — typically lands in the 95–97% range. The two biggest factors are microphone placement (closer is better, even your iPhone on the desk beats the back row) and how cleanly speakers take turns. Whatever the AI mishears, you can fix in the transcript editor in seconds, and the corrected version flows through to every export.
PrismaScribe doesn't do live transcription during the class itself — it transcribes recorded lectures. Hit record on your phone or laptop at the start of class, stop it at the end, upload after, and the transcript is usually ready in two to three minutes. If you need live transcription as the lecturer speaks, your device's built-in dictation or the platform's auto-captions will get you through the live moment. PrismaScribe gives you the clean, editable, searchable version once the recording is done — and that's what most students actually use for studying.
Any recording of a class, seminar, or guest talk where the spoken content is the main thing — slides matter less than what the lecturer is saying. That covers an MP3 from your phone, a Zoom or Google Meet export, a Panopto download, podcast-format course audio, even a video lecture you grabbed from YouTube. PrismaScribe accepts 16+ file formats, so whatever your device or lecture capture system produced, you can upload it.
The AI detects different voices in the recording and labels them as Speaker 1, Speaker 2, and so on — up to 32 distinct speakers per file. In the transcript editor you rename them with actual names: Professor Chen, TA Maya, Student in row 3. It works best when speakers take turns rather than talking over each other. Heavy crosstalk (three people at once) is hard for any transcription system, but the typical seminar-with-questions flow comes out clean.
99+ languages with automatic detection. The strongest performance is on widely spoken languages — English, Spanish, French, German, Mandarin, Portuguese, Japanese, Hindi, Arabic — but the long tail is supported too. If a lecturer switches between languages mid-sentence (common for guest talks or international classes), the AI handles code-switching without breaking the transcript. After transcribing, you can translate the full text into 100+ target languages for international students.
PrismaScribe's free plan is the answer for most students. It gives you 30 minutes of transcription per month with full access to speaker identification, 99+ language support, audio event tags, all six export formats (TXT, SRT, VTT, PDF, Word, and Markdown), and the editor. No credit card to sign up. If you mean a separate "Lecture Pro" app — that's a different product. PrismaScribe's paid plans (Starter, Premium, Pro) are for heavier academic use: 5, 20, and 40 hours of transcription per month respectively.
Yes. Download the recording from Zoom, Google Meet, Teams, Panopto, or any lecture capture system, then upload it to PrismaScribe. Or paste a YouTube link and we'll pull the audio for you — useful when a professor posts the recording publicly and you don't have a download. MP4, MP3, M4A, WAV, MOV, and 12+ other formats work directly. File size limits depend on your plan: 250MB on free, 2GB on Starter and Premium, 5GB on Pro.
The transcript editor is searchable. Type "regression" or "exam topic" into the search bar and you jump to every place that term appears in the recording. Click any sentence and the audio plays from that exact word — no scrubbing required. This is the fastest way to relisten to a 90-minute lecture, and it's why students stop relying on bookmarks and timestamps in their notes.
Yes. Files are encrypted in transit and at rest. Recordings and transcripts stay private to your account — exam-related discussions, research interviews, student contributions you don't want shared, all stay private. PrismaScribe doesn't train AI models on your content. You can delete files and transcripts at any time, and the deletion is permanent.
Yes. Edit text, rename speakers, fix the formula the AI misheard, and the changes flow through to every export — TXT, SRT, VTT, PDF, Word, and Markdown. Subtitle files (SRT, VTT) keep their timing in sync after edits. This matters when you're using the same transcript to add captions to a missed-class video and to print a study guide — both reflect the same corrected text.

Have another question? Contact our support team

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Start Transcribing Lectures Today

Stop choosing between listening and writing. Upload your first lecture recording free, and see how a clean, searchable transcript with speaker labels and timestamps changes the way you study or teach.

30 minutes free per month — no credit card
98%+ accuracy with speaker identification
Six export formats including SRT and PDF
Upload Your First Lecture Free

Built for students, grad researchers, and educators. Free plan included.