Yes and no. The inclusion of foam absorbers efficiently lowers the amount of sound reflections at high and/or middle frequencies if the foam is thick enough. That’s how we decrease the reverberation time in that frequency band. That is also the way in which we eliminate the flutter echo. Because lower frequency sound reverberates in the room longer, we have effectively changed the sound colour of the room. Exaggeration with these foams can make the room feel acoustically dead.