Diehl Aviation is developing an innovative way to replace conventional loudspeakers in the passenger cabin, using the lower panel of the overhead baggage compartment as a membrane. An exciter transmits vibration to the panel. Diehl claims sound quality is higher than with conventional membrane speakers, especially for voice transmission. “The exciter technology of the new panel loudspeakers uses the surface of the selected components to disperse sound in order to impress across the ...

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