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 ...

The dynamic range and frequency response required to make sound measurements on passing trains in a variety of environments. The methodologies used to analyze the measured data. The considerations ...

It's no surprise that repeated exposure to loud sounds can damage your hearing. According to the Hearing Health Foundation, sounds below 70dB, the typical volume for a standard conversation, are safe ...