I wondered about that (the need for calibrating) but since the video from the site said to, I thought I should. Anyway, @John Mulcahy was spot on. I thought I had tried muting the inputs but I think I probably muted all but the one I was testing, not realizing that of course it is feeding back...
Ah, I think I understand. The input is sending the signal right back out to the output... will see if I can fix that in the Focusrite control software. Thank you!
Trying to learn how to use REW for analyzing my home studio. I watched the youtube video from the REW website, and was trying to calibrate my Focusrite as he does with his Duet in that video. I used a balanced 1/4" to 1/4" from the right speaker out to input 2 on my Focusrite. (I didn't do...