Dans mon Pocket: How a horn amplifies sound (hint: Impedance matching)

A horn-shaped speaker is louder than an equivalent speaker without the horn. This fact doesn’t violate physics because the horn is acting as a matching device between the speaker and the air around it.Photo Credit for phonograph: Norman Bruderhofer, Collection of John Lampert-Hopkins
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Cet articlie a été pulié automatiquement, car j’ai ajouté la source à ma liste de lecture Pocket

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