| Re: Can't get a nice graph!
When you play a sweep through your system the level on the meter will vary because of the effects of resonances and reflections in your room. You can see the same by playing a sine wave and changing its frequency. From the plots you have posted the signal from your meter is not getting to REW, which could be a problem with the soundcard mixer settings or with the cables you are using or how things are connected up. A good starting point for getting the connections right is making the soundcard calibration file, if that is a nice smooth line that looks like the ones in the help file and only looks like that when you have the external loopback connection in place all should be OK there, but it would be a good idea to post the result you get so that we can check it for you. After that is OK the next thing to look at is the connection to the meter.
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