I've been struggling through taking reliable measurements with REW on my mac using the UMIK-1. I've used J_P_A's trick of selecting the MIDI channels to get around the soundflower issues (using channel 8 as my "dead" channel as I don't have back surrounds). A few questions have come up though:
1. Do I need to worry about setting gain on the UMIK for the mac? I've gotten clipping issues that have necessitated lowering the volume of the sweeps, and the guide doesn't have info about this for the mac.
2. Some measurements people post seem to have a db rating listed along side them, but mine just say "db new". Is this something to do with calibration that I'm missing?
3. When I've set my volume to get ~85db reading in the SPL meter my measurements show a drop off trend of about 10db by the time the sweep hits 400Hz. This trend seems odd, wondering if it's something to do with the sub running hot?
Any insights would be appreciated. I'm not satisfied with the measurements I took this last week, I think I need to try again to get a better read with different crossovers.