How to force 10 band octave EQ for REW

[powerwolve]

I would like to see if I am doing this right in REW; I followed this video here for setting up most of REW:

And then beyond that, my question lies in how I am trying to fit in the correction to the EQ I have available. It's a 10 band octave type, where I can only change the gain on these ten frequencies (31, 62, 125, 250, 500, 1000, 2000, 4000, 8000, 16000).

I first get everything setup as shown in the first image, then I go to EQ filters and plug in those specific frequencies (see second image), then click "Optimise gains" (if I click "Match response to target" my frequencies will get wiped out), and then I'm only left with a few remaining filters (see third image.) Am I going about this correctly? Something is telling me I should instead be picking a different EQ model, like the 'Configurable PEQ' and then setting that up such that it only applies filters on the octaves, but maybe this is a different way of doing the same thing. Thanks in advance.

 

[Keith_W]

REW has the ability to set parametric EQ's, meaning that the frequency, Q, and gains can all be set. Your EQ has fixed frequencies and adjustable gain. If the Q is fixed, which it probably is, then you have a graphic EQ.

To set a graphic EQ, overlay the target curve on top of the measurement. Make sure your measurement is heavily smoothed, I suggest 1/3 smoothing. Then read the deviation of the measurement from the target curve at at 31, 62, 125, etc. Input those values into your EQ.

Warning: above 500Hz or so, try to make sure that the left and right values are the same. Any deviation between L/R at those frequencies is likely due to measurement artefact rather than discrepancy between L/R speaker.