±DBCalc and ±DBDelta Mobile Apps from Marshal Day Acoustics
Marshal Day Acoustics released a free app for iPhone and iPad to add and subtract decibel levels ±DBCalc. ±DBCalc is also available on the Google Play store….
Acoustics in Permanent and Modular Classrooms
Acoustical Society of America announces new national standards for Acoustics in Permanent and Modular Classrooms. The Acoustical Society of America, headquartered in Melville, NY, announced…