Are you annoyed at traffic noise, noisy neighbors? Are you afraid to disturb neighbors with noise from your studio? If the answer is YES, you definitely need soundproof foam panels in your house.
Soundproof foam panels has different patterns, pyramids, wedges and plain. XPE foam acoustic panels belong to the last one.
Thickness is important because thicker panels will certainly be able to provide more soundproofing as compared to thinner panels.