The 23rd International Congress on Sound & Vibration (ICSV23) was held in Athens, Greece, from…
Dennis FoleySeptember 11, 2016
Acoustic foam comes in two types, open cell and closed cell and there’s some confusion…
Dennis FoleySeptember 5, 2016
The Schroeder Frequency is a term to illustrate the different speed how waves impact the…
Dennis FoleyJuly 2, 2016
Imagine that we have an open window and a sound source. Energy leaves through the…
Dennis FoleyJune 25, 2016
1) There is a lot of confusion between absorption and barrier technology. I don’t know…
Dennis FoleyJune 11, 2016
Today we are going to talk about what I call the „U“ requirement. U meaning…
Dennis FoleyMay 21, 2016
There may be apps that do that. You can definitely find spectrum analyzers that will measure ultra low.
Is there an APP that can measure the ultra low frequency levels?
.Plaster is a viable middle and high frequency absorber. We have used it many times in new builds that have…
Hi Dennis I'm curious what you think of acoustic perforated plaster - say CST Galaxy -on particularly ceilings in music…