Over his long career, Gordon Hempton has mastered the art of truly listening. He’s known as the Sound Tracker. Some people call him an acoustic ecologist. His recordings and books have made him an international expert on the beauty and importance of undisturbed, natural soundscapes — and the ways human beings have changed them.Now, Gordon Hempton is losing his hearing. But with that loss has come an intense urgency to share his life’s work — and his passion — with as many people as are willing to listen.  Twenty Thousand Hertz is produced out of the studios of Defacto Sound, and hosted by Dallas Taylor. Follow Dallas on Instagram, TikTok and LinkedIn.Watch our video shorts on YouTube, and join the discussion on Reddit and Facebook.Become a monthly contributor at 20k.org/donate. If you know what this week's mystery sound is, tell us at mystery.20k.org. Check out the whole Sound Escapes series at BirdNote.org/SoundEscapes, or wherever you get your podcasts. Check out Gordon’s work and buy recordings on his website soundtracker.com. Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/soundescapes  Learn more about your ad choices. Visit megaphone.fm/adchoices

In the late '70s, NASA launched Voyagers 1 & 2 to explore the furthest reaches of our solar system and beyond. But something amazing was included on those space probes... a 90-minute time capsule of sounds, language, and music from Earth called The Golden Record. Its intended recipient? Any intelligent extraterrestrial life that might stumble upon it. What did Carl Sagan and his team put on the record to represent all of humanity? How would aliens decode it?For the first time ever, the album will be deconstructed track-by-track. Featuring Tim Ferris and Linda Salzman Sagan, two pioneers behind the record.Twenty Thousand Hertz is produced out of the studios of Defacto Sound, and hosted by Dallas Taylor.Follow the show on Twitter & Facebook. Become a monthly contributor at 20k.org/donate.If you know what this week's mystery sound is, tell us at mystery.20k.org.Get your copy of the Voyager Golden Record at ozmarecords.com.Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/voyagergoldenrecord  Learn more about your ad choices. Visit megaphone.fm/adchoices

When was the last time you stopped and really listened to birdsong? Ever wonder what they’re singing about? We chat to Kenn Kaufman and Dr. Irene Pepperberg about the extraordinary complexity to the avian arias, how they’re produced, what they mean, and how vocal acrobatics can reveal a surprising hidden intelligence. Twenty Thousand Hertz is produced out of the studios of Defacto Sound, and hosted by Dallas Taylor. Follow Dallas on Instagram, TikTok and LinkedIn.Watch our video shorts on YouTube, and join the discussion on Reddit and Facebook.Become a monthly contributor at 20k.org/donate. If you know what this week's mystery sound is, tell us at mystery.20k.org. Check out The Growth Show wherever you get your podcasts. Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/birdsong  Learn more about your ad choices. Visit megaphone.fm/adchoices

We unpack how touch tone dialing changed communication forever. Join us on a deep, quirky dive into telephone history. We’ll also deconstruct these sounds and reveal their hidden brilliance. Featuring author Annabel Dodd and telephone aficionado Jim Hebbeln of the Telecommunications History Group. 20K is produced out of the studios of Defacto Sound and hosted by Dallas Taylor. Follow Dallas on Instagram, TikTok and LinkedIn.Watch our video shorts on YouTube, and join the discussion on Reddit and Facebook.Become a monthly contributor at 20k.org/donate. If you know what this week's mystery sound is, tell us at mystery.20k.org. Check out Pessimists Archive wherever you get your podcasts. Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/phonetones  Learn more about your ad choices. Visit megaphone.fm/adchoices

Movie trailers have undergone a huge evolution. They’ve gone from those cheesy voice-of-God narrators in the ‘80s and ‘90s, to boojes and bwaas. Professor James Deaville delivers the history of trailers, and Youtuber Craven Moorhaus offers a hilarious takedown of the sounds and dialogue that are common in the modern trailer style. After you hear this episode, you’ll never be able to watch a blockbuster trailer the same way again. Twenty Thousand Hertz is produced out of the studios of Defacto Sound and hosted by Dallas Taylor. Follow Dallas on Instagram, TikTok and LinkedIn.Watch our video shorts on YouTube, and join the discussion on Reddit and Facebook.Become a monthly contributor at 20k.org/donate. If you know what this week's mystery sound is, tell us at mystery.20k.org. Check out more videos from the Auralnauts at youtube.com/Auralnauts. Check out Song Exploder wherever you get your podcasts. Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/thebooj  Learn more about your ad choices. Visit megaphone.fm/adchoices

Have you noticed how loud it gets in restaurants these days? Have you found yourselves shouting just to keep a conversation going? Architecture critic Kate Wagner explains how changing design trends have led to dining experiences that aren’t just antisocial, but are negatively impacting our health as well.  Twenty Thousand Hertz is produced at the studios of Defacto Sound and hosted by Dallas Taylor. Follow Dallas on Instagram, TikTok and LinkedIn.Watch our video shorts on YouTube, and join the discussion on Reddit and Facebook.Become a monthly contributor at 20k.org/donate. If you know what this week's mystery sound is, tell us at mystery.20k.org. Contribute your local restaurant noise to the SoundPrint app at soundprint.co  Check out Hi-Phi Nation at hiphination.org or wherever you get your podcasts. Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/diningondecibels  Learn more about your ad choices. Visit megaphone.fm/adchoices

Alarm sounds have been around almost as long as humans themselves. But as our world has transformed, so have they. Today’s alarms are having an unexpected effect on our minds and bodies, and can even be putting our lives at risk when we’re at our most vulnerable. Dr Judy Edworthy and Yoko Sen talk to us about our alarming sound environment, and how it can be improved.  20K is hosted by Dallas Taylor and made out of the studios of Defacto Sound. Follow Dallas on Instagram, TikTok and LinkedIn.Watch our video shorts on YouTube, and join the discussion on Reddit and Facebook.Become a monthly contributor at 20k.org/donate. Visit mystery.20k.org to enter this week's mystery sound. You can find HowSound at transom.org/topics/howsound or wherever you listen to podcasts.  Check out Moonshot at moonshot.audio or wherever you listen to podcasts. Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/donotdisturb  Learn more about your ad choices. Visit megaphone.fm/adchoices

For decades, NFL strategy slowly evolved from each team running a dozen different plays, to rigid schemes with coaches sending in orders through codewords and secret signals. Then, one piece of audio technology revolutionized the game. Beginning in the early 1990's, the NFL allowed coaches to speak directly to their quarterbacks through radios in their helmets. What followed was an instant increase in excitement for the nation's most popular sport, spawning a high-scoring era of fast paced offenses. Featuring former Super Bowl winning coach, Dick Vermeil, current LA Rams Head Coach Sean McVay, Bose Senior Project Manager Matt Ruwe, and Bose Distinguished Engineer Dan Gauger.Twenty Thousand Hertz is hosted by Dallas Taylor and produced out of the studios of Defacto Sound.Follow Dallas on Instagram, TikTok and LinkedIn.Watch our video shorts on YouTube, and join the discussion on Reddit and Facebook.Become a monthly contributor at 20k.org/donate.Visit mystery.20k.org to enter this weeks mystery sound.Subscribe to The Truth wherever you get your podcasts. Or go to the truthpodcast.com. Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/blue42  Learn more about your ad choices. Visit megaphone.fm/adchoices

Our world is filled with sound. It exists in even the quietest corners of the planet. But what happens when all that sound is taken away? What is silence? There are very few places on Earth where silence actually exists, but in this episode, Dallas experiences it for himself thanks to a special room called an anechoic chamber. How do our brains process the complete nothingness of silence? Find out as Dallas locks himself alone inside the chamber. Featuring David Alvord and Nick Breen from the Georgia Tech Research Institute. 20k is produced out of the studios of Defacto Sound and hosted by Dallas Taylor. Follow Dallas on Instagram, TikTok and LinkedIn.Watch our video shorts on YouTube, and join the discussion on Reddit and Facebook.Become a monthly contributor at 20k.org/donate. Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/silence  Learn more about your ad choices. Visit megaphone.fm/adchoices

What happens when we leave Earth's thin blanket of atmosphere, and what do other planets sound like? In this special episode, we have completely remixed one of our favorite shows! It's been re-written, re-edited, re-narrated, has new music, and even some new additional content. If you've heard the original, you'll definitely want to check out this remixed and remastered version. Featuring Dr. Lori Glaze, Dr. Keith Noll, Dr. Scott Guzewich from NASA’s Goddard Space Flight Center. 20K is hosted by Dallas Taylor and made out of the studios of Defacto Sound. Follow Dallas on Instagram, TikTok and LinkedIn.Watch our video shorts on YouTube, and join the discussion on Reddit and Facebook.Sign up for Musicbed Membership music.20k.org. Become a monthly contributor at 20k.org/donate. Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/spaceremix Learn more about your ad choices. Visit megaphone.fm/adchoices