Junior records two channels:

ChannelSourceAppears in the transcript as
Your microphoneYouYou
System audioEverything your computer playsThe other speakers

It hears everything your computer plays

System audio is a single mixed feed of whatever is coming out of your computer. Junior cannot take only Zoom, and it cannot exclude only Spotify, because neither macOS nor Windows offers a per-application feed.

So anything audible during a recording is in the recording: a video you share, a notification chime, music you forgot to pause, a second call in another window. Mute or quit it before you start.

What it cannot hear

  • Anyone not coming through your computer or your microphone. A colleague on the other side of a large room, or someone on a separate phone.
  • A call you are on with headphones, if it is on your phone. The audio never reaches your laptop.
  • Anything before you pressed record. There is no buffer.

Your own voice, once

Junior removes the far end's audio coming back through your speakers from the microphone channel, so remote speech is not transcribed twice as though you had said it. This is why a speakerphone call in a room still separates you from everyone else correctly.

Questions

Does it work if I am wearing headphones?

Yes, and it is the better setup. Junior takes system audio from your computer before it reaches your ears, so it does not matter whether the sound comes out of speakers or headphones. Headphones also remove the echo path entirely, which makes the transcript cleaner.

Can I record an in-person meeting on my laptop?

You can. It will use the microphone and pick up the room. A laptop microphone on a table handles three or four people reasonably and a boardroom badly. For anything in-person, your phone is easier to place well: see when to use your phone instead of your laptop.

Someone on the call is missing from the transcript.

If their voice reached your computer, they are in the audio and the problem is speaker separation. Check the Original tab, where they may be merged with someone else. If their voice never reached your computer, they are genuinely not there, and no amount of processing will recover them.

Will a video someone shares be picked up?

Yes, in full, because it comes out of your speakers like everything else. It will be transcribed as though it were a participant, which can make a summary read oddly. Worth a note in your own notes if a long clip was played.

Does Junior record my screen?

No. Audio only. Nothing visual is captured at any point, and Junior never requests camera access.

Two of us were on one laptop. Can Junior tell us apart?

Both of you arrive on the microphone channel, so Junior separates you by voice rather than by channel. That is usually workable, though the two of you are occasionally merged. Name the speakers on the transcript afterwards to fix it.