I'm trying to record and edit audio from Youtube

I want to edit audio from a Youtube video but the recordings always come out as muffled and don’t pick up the audio at all sometimes. I’ve just started using this program but I’m not sure how recording that kind of audio works.

You are very probably recording from your built-in microphone. Instead, see: Tutorial - Recording Computer Playback on Windows

Thanks! It worked perfectly. I’ll try to remember that!