Designed to reduce or eliminate humming sounds, electrical noise, or unwanted acoustic frequencies.
From anti- (against) + hum (a continuous low sound, from the onomatopoeia of humming). This technical term emerged in audio engineering and electrical design.
Your headphones might have 'antihum' technology to get rid of that annoying 60-cycle hum from electrical interference—it's one of those invisible technologies that makes life less annoying!
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