What’s really needed is a test tone such as found on test CDs, say 315 Hz, which works fine, and an SPL meter. Then, determine locations in the room where sound pressure peaks 6 dB or higher than the average sound pressure in the room at moderately high loudness. Those locations are generally where acoustic devices - panels, resonators, etc. - should be placed. Without a method for placing acoustic treatments it’s like shooting blanks in the dark. As the system evolves you should find that the locations of acoustic devices can change along with the system changes. Ditto speaker locations. It’s a fluid situation.
Diffusion vs. Sound Absorption views
I have Spatial Audio M4 Triode Master open baffle speaker in my listening room. I have sound treatment behind the top of the speakers with sound absorption panels hung on the wall and an Aurelex foam panel down to the floor.
It was recently brought to my attention that sound diffusion panels behind the speakers might yield an improvement in SQ over the sound absorption panels. The advice I got is that OB speakers benefit more from rear wall sound treatment with diffusion rather than absorption. I put the issue to you learned folks for advice. Thanks.
It was recently brought to my attention that sound diffusion panels behind the speakers might yield an improvement in SQ over the sound absorption panels. The advice I got is that OB speakers benefit more from rear wall sound treatment with diffusion rather than absorption. I put the issue to you learned folks for advice. Thanks.