Phil Allison wrote:

With both ears exposed, I would expect people with good hearing to do the job easily - provided the room was large or approaching anechoic.

It was a small room, lined with foam, so a simple form of
anechoic chamber. It felt quite strange to be working in there.

One odd aspect was that, although external airborne noise was
well suppressed, they hadn't managed fully to isolate the chamber
from the basement floor it stood on. There was a railway line
nearby, and although I never ever heard a passing train outside
the chamber, inside they were clearly audible.

Chris
--
Chris J Dixon Nottingham UK


Plant amazing Acers.