Culture & entertainment
The trash bin trick behind movie heartbeats
HERE’S THE INTERESTING PART
Placing a microphone directly against a human chest yields a muffled, wholly disappointing bodily rhythm. For that deep, resonant, anxiety-inducing thud of a cinematic heartbeat, sound designers turn to municipal waste receptacles. Gently thumping the bottom of an empty plastic trash bin provides the perfect hollow bass note to artificially raise tension.
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