Graphene speaker creates sound through heat, not vibrations

By Michael Irving, New Atlas
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By Michael Irving, New Atlas

Graphene may hold the key for a new type of speaker that doesn't need a vibrating membrane at all, instead generating sound through thermoacoustics. Pretty much every speaker works with a membrane that physically vibrates, distorting the air in specific patterns to generate sound waves. But now, researchers at the University of Exeter have developed a speaker that doesn't need to mechanically vibrate at all. The key to this potentially ground-breaking speaker is – what else? – graphene, which is heated and cooled with carefully controlled electric currents to create sound waves.MORE@NewAtlas




Pulling Through

Pulling ThroughPro AV's research indicates that pulling cable and making connections and terminations probably account for the majority of billable hours on most system installation projects.“It's an area that can be really difficult,” says Brad Nelson, owner of Sound Solutions more