Founded
by acoustical engineer and physicist Arthur M. Noxon, Acoustic Sciences
Corporation (ASC) has been dedicated to developing noise and sound
control devices since 1984. Our early products were a direct response
to the needs of the professional recording industry. We are best
known for our Tube Trap product line, a modular full-bandwidth
sound control device that combines the principle of the RC-time
constant bass trap with that of treble range diffusion panels. We
also build sound cancelling side branch resonators to control tonal
sounds in ducts.
For the uninitiated, ASR-9
puts a dot on the Airport's Flight Control radar screen. Mode-S
reads an aircraft's transponder and places the flight ID next to
the dot on the radar screen. The regional ARTCC (Air Route Traffic
Control Center) tracks in-flight movement. Each of these facilities
have hardware rooms with very loud cooling fans. ASC engineered
"noise suppression kits" for them which allow on-site
technicians to work without the need for hearing protection.
When the first ASR-9 site
was being set up at LAX in 1990, the noise level were found to be
totally objectionable -upwards of 82dBA in the equipment room. ASC
was contracted by FAA site technicians and we provided temporary
noise barriers. After extensive engineering analysis, working closely
with FAA engineers, we developed our first air breathing baffle
system, the NCP-10. This was in response to the FAA request for
the "the finest system you can provide".
We have provided 75% of all
ASR-9 sites with our top quality NCP-10 system. Mode-S was the next
upgrade by FAA for ASR-9 sites and accordingly we developed the
NCP-8 system to the same exacting standards of performance, acoustics,
handling, and durability established by the NCP-10 system.
See our in-depth descriptions
of the NCP-10 baffle system
for ASR-9 sites, the NCP-8
for Mode S sites and our ARTCC
baffle System. Your personnel will appreciate the significant
noise reduction.
Custom
Noise Baffles
ASC
also makes custom solutions to help quiet any kind of high noise
air handler or cooling system. Mr. Noxon and the ASC staff will
engineer an add-on unit designed to seemlessly fit your existing
air intake and/or exhaust. High noise air handler situations, such
as those found in the cooling systems for large electronic switching
centers, can cause hearing loss for unprotected workers on site.
Our goal is to reduce the noise level to OSHA acceptable levels
or better.
Many of our large industrial
clients are very happy with the results. For a complete case study
of one such client, click
here.
Mufflers
and Recirculators
ASC
In-Line Mufflers are a custom noise control product. In certain
circumstances, customers require a total removal of perceptible
sound while continuing to circulate HVAC air. Usually these customers
are recording studios, but not always. ASC will custom design, based
on your room size and other variables, in-line mufflers and air
recirculators which will effectively maintain air flow without transmitting
sound.
The priciple is simple. As
air rushes past specially designed fiberglass panels, sound absorption
takes place. Not very different from the muffler on your car.