Airbus began a three-week flight-test evaluation of the potential impact of the A350XWB’s carbon-fiber fuselage on cabin acoustics using its A340-300 test aircraft on Sept. 6. A 162-sq.-ft ...
Headphones placed around the neck are an effective sound source for testing how well hearing protection devices reduce noise.
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 ...
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