Twenty Thousand Hertz is an independent podcast about "the world’s most interesting sounds". The show is hosted and produced by Dallas Taylor and the writer of the episode, with help from Sam Schneble.
The show's title refers to highest frequency that can be perceived within the human hearing range (without hearing loss). It grew out of host Dallas Taylor's admiration for the podcast "99% Invisible" and a desire to hear more stories like the ones they produced about audio design.
Instead of focusing on the industry of sound design exclusively, episodes focus on a variety of topics related to sound. The podcast has covered topics such as the THX Deep Note, misophonia, the Voyager Golden Record, ASMR, and advertising jingles.
Doug Fabrizio of KUER-FM says the show, "challenges listeners to refine their sense of hearing." In 2017, OZY listed Twenty Thousand Hertz as one of "4 Podcasts that'll Make You Wish Your Commute Were Longer."