Here is the gist of some details on the absorption characteristics of these type panels. Can anyone put these into context with foam, fiberglass, hard fiberglass? And would they be effective with early reflections?
The numbers below refer to something labeled Practical sound absorption coefficient. I could not get hte graphs off the pdf to include in this post.
thanks
Swoop
Frequency αp
(Hz)
63 0.10
125 0.30
250 0.75
500 1.00
1,000 1.00
2,000 1.00
4,000 1.00
Swell and Scrunch
Frequency αp
(Hz)
63 0.00
125 0.05
250 0.25
500 0.60
1,000 0.70
2,000 0.85
4,000 0.85