The acoustical facilities consist of a 200 cubic meter reverberant room constructed and qualified according to ISO, ASTM , ASHRAE and ANSI standards for measurements of equipment sound power and material absorption.
Sound power generation measurements can be performed on any type of device or equipment. Examples: motors, pumps, fans, horns, bells, mixing boxes, signaling equipment, luminaires and terminal air devices etc... - power levels and NC at 4 air volumes. Ballast noise can be shown as LSNC or power levels in 1/3 or 1/10 octave.
Absorption measurements usually require a 72 square foot sample for ceiling and/or wall materials. Absorption per Octave Band and NRC readings can be taken in full, 1/2,1/3 and 1/10 octave bands.
On-Site transmission loss and absorption measurements
Free-field sound power level measurements