Ambico acoustic steel doors and frames combine outstanding
sound transmission loss with the appearance of standard hollow metal
products. Doors are provided complete with acoustic steel frames,
perimeter and bottom seals.
Features
Testing of acoustic door/frame units by independent laboratories
complies with the most up-to-date standards on the continent.
Fire labelled products have been tested in accordance with NFPA-80
and are certified by Underwriters Laboratories and Warnock Hersey
International.
Fire labelled products may be supplied in singles or in pairs.
Doors are available 1 3/4" thick from STC 33 to STC 53.
Units have been designed to accept readily available heavy
weight builders hardware.
Doors are available with acoustic glazing
that is factory pre-installed.
Outstanding service and lead times.
Masking and Filtering Sound
NASA's Glenn Research Center has produced an educational CD,
"Auditory demonstrations in acoustics and hearing conservation".
This excellent arrangement of demonstration tracks, provides recordings
of common noises, their "usual" levels, escalated levels, and the
same noises with masking and filtering applied. This CD clearly
demonstrates the effects of these agents on both tonal and broadband
sounds. In fact, masking and filtering and the use of "white noise"
have become useful weapons in the war against unwanted sound and noise.
To download the intriguing CD produced by NASA, Auditory Demonstrations
in Acoustics and Hearing Conservation Featuring the sounds of NASA Glenn
Research Center [ browse CD ].
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