Audiometric tests are invalid if conducted in environments with unsuitable ambient noise levels. Excessive ambient noise can ‘mask’ the pure-tone test signal, making it inaudible to the test subject, ...

From the January/February 2026 issue of Car and Driver. Sound is critical to the automotive experience. Sometimes we need lots of it, such as when we want to hear the sweet song produced by a V-12 ...

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 world is getting louder. People cannot escape noise pollution in their everyday lives whether from traffic, infrastructure, music or more, but employees can and must be protected from excessive ...

Noise exposures and standard threshold shifts have been present in general industry and construction sites since the Occupational Safety and Health Administration was founded. In fact, many safety ...

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 ...