You can receive a 15% discount on “Sound System Engineering” by going to www.elsevierdirect.com and typing in the order code 92837 when ordering, or by calling 1-800-545-2522 and mentioning 92837 when ...

SPECIAL thanks for running the Knight-Ridder article on noise pollution, and particularly for showing noise levels on a decibel chart. Even though some people may not have bothered to read the article ...

One of the most difficult-to-understand terms for newcomers (and even experienced enthusiasts) in audio and sound reproduction is the decibel, partly because it’s a measure of relative intensity or ...

Engineers are not just adding more insulation, they are reinventing how interior noise is captured, modeled, and judged so that measurements line up with what drivers actually feel. The result is a ...

Secondly, while the aircraft is taking off and landing, noise levels measured 100 m (330 ft) from the vertipad stayed below 65 dBA over more than 20 VTOL tests, with the aircraft rising to or ...