Hi guys, newbie here to REW and after two days I'm still having issues setting everything up. I'm using a M-Audio MobilePre soundcard and ECM8000 mic for measurements.
Basics:
ECM8000 to MobilePre via XLR cable into channel 2 mic input
MobilePre to processor via 1/4" to RCA adaptor from channel 2 output
I've been able to set the measurement level, and set the input volume level, my problem is that I need to turn the channel level up on the MobilePre almost the whole way to get a -18dB input level.
I can then calibrate the REW SPL meter without issues. What I am having a problem with is calibrating my soundcard. I can run the calibrate function over and over and never get the same response. I am using the 1/4" jack channel 1 output into the 1/4" jack channel 2 input. Here is an example:
It looks like it's clipping, but the only way to resolve that is to turn down the input channel level knob on the MobilePre down, which then makes the input level below -30dB. And even then I can run the soundcard calibrate function and still get a funky graph. I had similar issues the first day I tried this but they went away after I loaded the soundcard's drivers. I uninstalled and reinstalled them again today without luck. I have "direct monitor" turned off in the soundcard menu.
Help! Is my soundcard hosed? I don't like the idea of dropping >$200 on a setup that doesn't work. Does anyone else run the ECM8000 with the MobilePre have the same issue with the channel level needing to be cranked up?
Thanks
-Dissapointed Nat