A recent customer of one of our soundproofed studios sent us this email after having tested her building. We tested it first before we left site and of course it complied with the 60 db suppression spec promised, however the customer is a scientist so wanted to do her own tests afterwards and this is what she said after she had done a recording outside the building:-
"What I did hear on the recording, and which I did not hear at all inside the room, was loud thunder (a storm came through at just that moment), the dog barking furiously, and a screaming fire engine siren going past.
The room therefore exactly meets my soundproofing requirements, so I am completely delighted with my new studio.
Author: David Fowler - owner of Extra Rooms