The voices inside our navigation systems are with us nearly every day. They frustrate us when they lead us astray, and guide us through our most memorable adventures. But who are the people behind those voices? In this episode, an Australian musician discovers she is the voice inside millions of GPS units, and the Polish voice of Google Maps goes head to head with a robot. Featuring “The GPS Girl” Karen Jacobsen and “Głos Google Maps” Jarosław Juszkiewicz.

Follow Dallas on Instagram, TikTok and LinkedIn.Watch our video shorts on YouTube, and join the discussion on Reddit and Facebook.Sign up for Twenty Thousand Hertz+ to support the show & get our entire catalog ad-free.If you know what this week's mystery sound is, tell us at mystery.20k.org.Watch Jarek’s farewell video that inspired the online protest.To learn more about Karen's work, visit thegpsgirl.com.Find the right doctor, right now with at zocdoc.com/20k.Visit shopify.com/20k and sign up for a one-dollar-per-month trial period.Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/recalculatingLearn more about your ad choices. Visit megaphone.fm/adchoices