ernestcarl
Major Contributor
Don’t you see similar variations in this frequency band with sweeps within the same location as the MMM ?
My listening position isn’t close to the back wall, but I imagine any small displacement vs this reflection can change quite a lot the response
I've done +100 sweeps across a given listening space and when you average the measurements you do get very similar results to an MMM covering the same area. The energy is still there though not exactly where your ears/microphone is positioned in the space... more obvious if you move yourself a little forward, higher and/or lower the response will change as well.