PRX · Science

Twenty Thousand Hertz

The stories behind the world's most recognizable and interesting sounds. Whether you're a professional audio engineer with decades of experience, a fourth grader who loves sound and music, or anyone in between, Twenty Thousand Hertz will help unlock your sonic world… from the sound design secrets of hit movies, to the sonic craft of jingles and device sounds, to the forgotten backstories of classic theme songs, to linguistic mysteries, psychoacoustics, video game music, animal communication, and beyond. With moving human stories, immersive sound design, and the guiding voice of host Dallas Taylor, Twenty Thousand Hertz has grown into the world’s leading podcast about sound. New to the show? Start here: • I'm Lovin' It: How “Ba da ba ba ba” took over the world • The Art of Foley: Bringing Slimer & Batman to life • Tudum! The story behind the iconic Netflix sound • Super Mario Bros: Koji Kondo's 8-Bit Masterpiece • Inside Hans Zimmer’s Remote Control Studios • A sonic journey through the Solar System • Mind the Gap: NYC & London’s iconic transit voices

Episodes

Number stations function as clandestine shortwave radio broadcasts, transmitting encrypted messages to intelligence operatives globally. These signals leverage the ionosphere to travel across continents, providing a secure, low-tech communication method that remains impenetrable without the correct one-time pad decrypt...