Three large pressure-vessel silencers are placed after the flow regulator to remove any noise from the compressor and the flow regulator, before the flow enters the anechoic chamber. The jet test-rig ...

PROC SPECTRA prints two test statistics for white noise when the WHITETEST option is specified: Fisher's Kappa (Davis 1941, Fuller 1976) and Bartlett's Kolmogorov-Smirnov statistic (Bartlett 1966, ...

Mashable writers and editors perform standardized tests to evaluate headphones and earbuds for our hands-on coverage. Here's a look at what those tests are.

and – most importantly – noise reduction in real-world settings. With a dedicated testing facility and years of expertise, we ensure all of our independent recommendations deliver excellent ...