PCI Sound Laboratory

This facility (right) was designed by JGL Acoustics, Inc. in 1998 to allow testing of duct silencers and acoustical lining in accordance with ASTM E 477. The focal point of PCI Industries' new testing laboratory is a 31,000 cubic ft. reverberation chamber. The chamber is constructed entirely of concrete and concrete block with brightly colored, lightweight diffuser panels mounted to the walls and ceiling to provide low frequency absorption.

The 650,000 lb. reverberation chamber (left) is floating on steel springs, and is located inside a larger building to reduce noise infiltration from exterior sources. The facility is designed to test duct silencers and acoustical lining with an air flow capacity up to 50,000 CFM. The laboratory is currently certified by NVLAP for testing in accordance with ASTM E 477 and ANSI S12.31 and ANSI S12.32. The photo to the left shows the rotating microphone boom, which moves the measurement microphone along a circular path through the reverberation chamber. The boom makes a full 360 degree rotation every 32 seconds.