Wayne A. Pflughaupt
Active Member
Option 2 is the worst as you’re only correcting what your mic heard from a single point in space. You should do a sweep measurement as well as MMM RTA of L, R, and L+R. The sweeps will give you insight as to what response deviations are minimum phase or not (as I understand it, these are readily correctable while excess phase is usually not). Then once you have an idea of what you’re dealing with, use an appropriately sloped target response on the MMM measurements to obtain the parametric EQ settings needed for correction.
I find MMM to be a curiosity. If you’ve done it yourself, perhaps you can answer a couple of questions for me?
1. Before EQ, at the various locations where measurements were taken, could you hear a difference with music or other program material compared what was heard at the main listening position (MLP)?
2. After equalizing via MMM, did the results sound better than had been accomplished by EQing based on results for only the MLP, either at the MLP or the other locations where measurements had been taken?
Regards,
Wayne A. Pflughaupt