How to do room acoustics correction the easy way.

Without doing my normal show, while "room correction" software works, it works MUCH better with proper room acoustic treatment.

With a very reflective, sealed room ARC won't work nearly as well as one with controlled reflections (absorption and diffusion) as well as bass traps.

Everyone is right acoustic panels may be needed. I went cheap route to test waters then went to thick Dow Corning type board. Cheap way to test is go to A/C supply store and pick up a 10x4, 1 inch thick insulation duct board for $50 to see what results you get. 10x4 will give you 4 2x2 panels for behind speaker and 2 for reflection points and 2 for behind speakers and 4 6x2 panels for the corners. If you like results buy some burlap from fabric store and keep what you have. If you want to go further buy some premade panels already covered or buy some thicker Dow Corning panels and do diy.

So more info.  Room is a converted garage 24x22x10.  No longer looks like a garage.  Sheet rock walls. Lots of wall treatments.  GE Refs sit 4’ out from the wall with 9’ between and 9’ to listening positions.  Directly behind the sofa I use, there is a large weight machine and treadmill.  I know I am having reflection problems, I hear it as smeared midrange...guitar and vocals.  I hung 4 heavy shipping blankets immediately behind sofa about 6’ high that extended about 8’  across. Smear and edgyness went away..  That’s what I hope to mitigate with room correction software.  I don’t want the blankets as a trap...

To continue, will my plan work or should I do more room treatment.  I have so many reflection points before  the wall opposite the speakers...