Cartoon sound effects are some of the most iconic sounds ever made. Even modern cartoons continue to use the same sound effects from decades ago. How were these legendary sounds made and how have they stood the test of time?

This story originally appeared on Twenty Thousand Hertz

Subscribe to Twenty Thousand Hertz in Apple Podcasts, RadioPublic, or wherever you listen.

Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. 

Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podcastsplus.