[QUOTE=kgveteran;53281778]I should be able to measure the room, and show the improvements. I'm aware of the mirror test to find the places, but if the absorber isn't measuring an improvement, what really have I accomplished
I used track #3
long mono sweep, there are 3 peaks i can see, are there actually 3 reflective surfaces reflecting back to the LP?
I have found this a difficult function to use. It can give a global picture and localize some problem to the left or right, front to back. In a multichannel system, multiply each speaker on all the available boundaries. One speaker in a rectangular room has 6 boundaries. Now let's go to a 7.X system and you have 7 X 6 or 42 refelctions coming at the MLP. All the speakers are at different distances and interacting with things on the left and right, front and back of the room, this is a nightmare . Now take this to an Atmos system with 11 to 13 sp to sort this out you need to be a mathematician.
We are mainly focused on two things in the small HT. FR and phase relationship, this will makes or breaks the system. I depend on my Pioneer Elite SC 99 for FR and Full Band phase control to a large extent and concentrate on the FR corrections in the subwoofer passband. This is usually no more than 2 or 3 filter adjustments.
I also rely on knowledge of the most common room locations to guide my placement of room treatments. I also use the available room furnishing. This keeps the room aesthetically pleasing without covering all the surfaces.
This simple method along with analysis of the bass decay function have been pretty rewarding. I'm not saying it can't be done but, no use in having auto EQ if you can't count on it to do some o f the hard work or you need a different auto EQ. This is much easier in a 2 ch system (use of ETC). Even mastering this technique has a steep learning curve.
Maybe Bill Waslo will weight in on some advice for a HT setup.