When specifying cooling equipment, engineers are faced with myriad decisions affecting performance and layout. One critical consideration is the noise emitted. As population density rises in major ...

Headphones placed around the neck are an effective sound source for testing how well hearing protection devices reduce noise.

Clarification: The sound test was meant to find the decibel level inside the venue that will not exceed the levels required by the special permit at The Foundry's property line. WEST STOCKBRIDGE — Is ...