Is it possible to pause an unfinished project, play back what you have recorded so far, and then continue recording from that point? When I do this, the playback begins again simultaneously with the ongoing recording. There is no problem pausing the recording and then resuming it. The problem lies only with having played it back.
Shift-R. Append Recording.
Or maybe you want to de-select:
Audacity > Preferences > Recording: [_] Playthrough (as many as you have). That should kill playback while you’re recording.
Thanks Koz, a very straightforward solution.