What am I looking at?

[devicente]

This was one test.



This is the second.


What am i looking at.

I have a mac book pro running into my in and out channels to a Radio Shack SPM.

[mrsollars]

i'm going to be of absolutely ZERO help.....but i'm going to be running REW with the radio shack spl meter and either a macbook or imac soon.

REW doesn't seem to mesh well with Macs....but i'll be watching this thread. thanks for posting the question....and good luck with the answer!

matt

[spreston]

I find REW works very well with the MacBook Pro. I am a very new user of REW and after some trial and error got REW up and running with the internal line in.

I will try to post a detailed primer in the next few days which should help.

:P

[JohnM]

The first plot looks like a loopback measurement made with the SPL Meter set as C weighted, which is why it rises at lower frequencies as REW compensates for the C weighting. If you were to uncheck the C weighted SPL meter box on the mic/meter settings page you would find that loopback measurement becomes flat.

The second plot looks like a good frequency response measurement of your subwoofer (congratulations ) with perhaps some contribution from your main speakers, depends how you have connected to your system, through your receiver (recommended) or directly to the sub.