In the wake of recent fines for motorcycle exhaust noise and the controversy of roadside testing procedures, another issue that unfairly affects riders in some states is the lack of testing stations.

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 ...

Indoor pass-by testing not only helps vehicle OEMs comply with new noise limits but also optimizes and investigates their designs in a cost-effective manner. Worldwide road traffic noise is one of the ...

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 ...

July 8, 2009 – The Society of Automotive Engineers (SAE) International has produced a simple, consistent and economical sound test standard that can be used to determine whether a street bike ...

With so many companies in Silicon Valley designing high-speed digital links, there's always a need to measure jitter, phase noise, Allen Deviation, and other parameters. Engineers who don't have the ...

In a nod to its storied past, Porsche‘s 928 noise test vehicle now sits proudly in the Porsche Museum. Dubbed a “dinosaur” by Harald Mann, a long-time test engineer, this unique vehicle has played a ...

Noise can affect sleep for better or worse. White noise machines that emit consistent noise fall squarely in the “better” category. Constant white noise, has been shown to improve sleep quality ...