Recent content by wttmaples

Hello. I am trying to use REW to calibrate and check the response in my studio room. How ever I can not get the signal to show up in REW. I am using 2012 MBpro Retina, Catalina - OS. PREAMP IS FOCUSRITE SAPPHIRE PRO 40. I ALSO HAVE A BEHRINGER ECM 8000. My problem is when I go to calibrate I get...