Hearing

July 4, 2013 - 1:45am

Sennheiser’s updated active noise cancellation HMEC 26-2 headset adds comfort, noise protection and a higher sound pressure level to the HMEC 26. To improve the fit for a wider variety of pilots, Sennheiser redesigned the two-piece automatic headband so it can be opened another 20 degrees. Restricting folding of the ear cups to a 45-degree angle improves wearing stability. The microphone boom is made of a new steel that remains in the set position more securely, according to Sennheiser.

April 2, 2012 - 3:46am

Smac Aero of Toulon, France, continues to develop new technology aimed at reducing aircraft cabin noise and promoted its full line of noise-reduction technology in Cannes, France.

Among the latest items is the SmacBarrier, an acoustic layer designed to reduce the transmission of sound generated around window trim panels, flooring and ceiling panels.

Also fresh off the development line is SmacFoam, specifically created to reduce sound transmission and provide sound absorption in smaller, confined spaces.

 
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