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Old 01-28-07, 04:44 PM   #2 (Link)
Wayne A. Pflughaupt
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Re: speaker location and graph help


Quote:
muse77 wrote: View Post
I have been playing with REW,speaker location and trying to understand different graphs (i'm still new at this). I have done so many sweeps that my wife and son are walking around imitating them.
That's great!

Just tell them they should be grateful that you’re not using pink noise!

Your first graph is a bit unusual, based on the info you provided on their placement (assuming you didn’t shift the blue line upwards). Typically the nearer to a corner you are, the more bass increases. The top trace looks smoother, if you can live with your speakers seven ft. out in the room.

Your second graph, where you plugged the port on one, both the green and blue are virtually identical. You shouldn’t be able to hear a difference between them one way or the other

Quote:
The next graph I put the mic 4in. in front of each speaker and covered mic. I the covered the speaker and mic with a blanket to avoid room reflections. Would these results be usable?
Typically you want to measure from the listening position.

Re the graph with the yellow traces, I know nothing about time energy graphs.

Regards,
Wayne


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