Study from text
Searching a transcript is faster than scrubbing through a recording. Use the timestamps to jump back to an explanation you want to hear again, or paste the text into your notes.
Lectures in another language
International students can add a translation into their own language and read both versions side by side; the translated SRT also works as subtitles for the lecture video.
Recording tips
Sit near the speaker or put the phone near the lectern. One clear voice and little background noise give the best results; questions from the audience far from the microphone are harder to catch.