Lecture transcription for recordings you already have
GhostMinutes turns a lecture recording into searchable text with timestamps and an AI summary, and you can ask the AI questions about the lecture afterwards. Upload audio or video up to 1 GB, in any of more than 95 languages.
- ✓Audio or video up to 1 GB
- ✓Ask the AI about the lecture
- ✓Timestamps to find any point in the recording
Drag & drop your audio or video files
or Browse Files
Any audio or video format (MP3, MP4, MOV, M4A, WAV, FLAC, MKV…) · Up to 1 GB · Multiple files supported
No card and no signup. Free uploads cover the first 30 minutes of a recording.
Your audio is auto-deleted after transcription. Transcripts are encrypted at rest and you can delete them any time.
How to transcribe a lecture
- 1
Get the recording
Use a course video or your own recording, if your school and lecturer allow it.
- 2
Upload the file
Drag it into the box above. Long lectures take longer to process, and the file appears in Recent Files when it is ready.
- 3
Read the summary
Start with the AI summary, then use the timestamps to go to the sections you need.
- 4
Study from it
Ask the AI to explain a concept from the lecture, list key terms or write practice questions.
Prompts that work well for study notes
Key terms
List every key term the lecturer defines in this transcript, with the definition they gave.
Exam prep
Write ten practice questions based on this lecture, with answers and the timestamp where each answer appears.
Catching up
I missed this lecture. Summarize what was covered in the order it was taught, and flag anything the lecturer said would be on the exam.
Recording tips
Sit near the front
Lecture halls echo. The closer your phone is to the speaker, the better the transcript.
Ask first
Some lecturers and schools restrict recording, so check the rules for your course.
Long lectures
Free uploads on the web cover the first 30 minutes of a recording. The Pro plan transcribes the full file, and costs $5 a month for 3,600 minutes.
What you get with GhostMinutes
No bot in your call
You upload the file after the call, so nothing shows up in the participant list.
Old recordings work too
Upload a recording from today or from last year. GhostMinutes takes MP3, MP4, MOV, M4A, WAV, FLAC, MKV and other audio or video formats up to 1 GB.
Speaker labels and timestamps
Each line shows who spoke and when. Rename the speakers, then ask the AI questions about what was said.
95+ languages
Transcribe and summarize in more than 95 languages. GhostMinutes detects the language of each file automatically.
Audio deleted after transcription
The web app deletes your audio file right after processing. Transcripts are encrypted at rest and kept for up to 90 days unless you delete them sooner. We never sell them, share them or train on them.
Free plan, then from $1 a month
Free includes 150 minutes a month. Lite is $1 a month for 600 minutes, and Pro is $5 a month for 3,600 minutes.
Lecture transcription questions
Try it on your own recording
Upload a file and get the transcript, speaker labels and an AI summary. No card and no signup.