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PODCAST

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

arts design

All Episodes

29:44

He was deaf for 35 years + Listener Stories kickoff

Twenty Thousand Hertz ·

2026/03/23

Last year, we ran three full episodes of listener-produced stories. But one beautiful story was just a little too long for the final cut… and we couldn’t leave it behind. In this episode, sound designer Jesse Herrera tells the story of his grandfather, who lived in silence for 35 years before receiving a cochlear implant, and the overwhelming, joyful process of learning to hear again. Afterwards, Dallas and Casey reflect on last year’s Listener Stories and kick off this year’s competition. Learn

en

32:06

Harry Potter and the Sound Designer’s Stone

Twenty Thousand Hertz ·

2026/03/09

Harry Potter has been brought to life on page and screen. But what would it take to make the wizarding world come alive using sound alone? In this episode, we go behind the scenes of the new full-cast editions of the Harry Potter series, where a team of sound designers spent eighteen months crafting 130 hours of immersive audio. From the whistle of the Hogwarts Express to the rasp of the Dementors, every spell, creature, and location had to sound tangible and emotionally distinct. Featuring Will

en

27:44

When Everything Stopped, He Started Listening

Twenty Thousand Hertz ·

2026/02/23

David Jeffers has always understood the world through sound. As a kid, he bounced beats between tape decks and built speaker boxes from spare parts. After college, he founded an underground hip hop label. Then came the day that split his life in two. And in the quiet that followed, David started listening more deeply… and piece by piece, he built a new life, guided not by what he lost, but what he could create.For news about ⁠Quad Life⁠, the upcoming documentary about David, follow Quad_Life_Doc

en

37:04

The State of the 20K Multiverse™

Twenty Thousand Hertz ·

2026/02/09

What happens when a podcast about sound gets into video? In this special behind-the-scenes episode, producer Grace East flips the script and interviews Dallas about his leap into visual storytelling, and how the different pieces of the 20K Multiverse all fit together. From backstage at SNL, to Disney Imagineering’s archives, to real-life Bluey locations, Dallas reveals the anxieties, lucky breaks, and human connections behind our new video series.Subscribe on ⁠⁠⁠⁠⁠⁠⁠⁠⁠YouTube⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ to see

en

38:15

Doctor Who & The BBC Radiophonic Workshop

Twenty Thousand Hertz ·

2026/01/26

What does a time machine sound like? Or a magic carpet? For the BBC Radiophonic Workshop, that was just another day at the office. For 40 years, this oddball collective of engineers and composers pushed the boundaries of sound design, crafting eerie atmospheres, quirky jingles, and the iconic audio of Doctor Who. In this episode, we explore the rise and fall of this pioneering studio with composer and archivist Mark Ayres, and uncover how these sonic wizards shaped the future of sound.Twenty

en

27:20

Butterfly in the Synth: Reading Rainbow’s Magical...

Twenty Thousand Hertz ·

2026/01/12

The theme song to Reading Rainbow has been delighting kids (and nostalgic grown-ups) for over 40 years. But how did this instantly iconic track come to be? In this episode, composer Steve Horelick reveals the unlikely story of its creation, from its empowering lyrics, to its “fluttering butterfly” synth sound, to how Chaka Khan and a mystery drummer helped shape one of its later versions.Support the show and get ad-free episodes at ⁠⁠⁠⁠⁠⁠⁠20k.org/plus⁠⁠⁠⁠⁠⁠⁠. Twenty Thousand Hertz is produced

en

22:33

Auld Lang What? The surprising origins of the New...

Twenty Thousand Hertz ·

2025/12/31

Every New Year’s at midnight, we raise our voices to sing a song that few of us understand: “Auld Lang Syne.” So when and why did this become the anthem of the holiday? In this episode, our friends at the Smithsonian’s Sidedoor podcast trace the mysterious rise of “Auld Lang Syne” from rural Scotland, to a New York jazz club, to a classic film and an iconic actor. Featuring folklorist Jim Deutsch.Support the show and get ad-free episodes at ⁠⁠⁠⁠⁠⁠⁠20k.org/plus⁠⁠⁠⁠⁠⁠⁠. Subscribe to ⁠Sidedoor⁠

en

46:45

Guess That Sound 2025: Youtube Channel Champs

Twenty Thousand Hertz ·

2025/12/17

For our sixth annual Mystery Sound game show, we’ve invited three guests from our video series to test their sonic knowledge on 18 sounds, including production logos, video game FX, bird calls, strange instruments, and more. So put on your listening cap and get ready to guess along in this surprising and hilarious competition. Featuring Jake Hartsfield, Carlos Torres, and John Michael Hinton.Support the show and get ad-free episodes at ⁠⁠⁠⁠⁠⁠⁠20k.org/plus⁠⁠⁠⁠⁠⁠⁠. Twenty Thousand Hertz is

en

41:52

The Sound of Fallout: From Iconic Games to Prestige TV

Twenty Thousand Hertz ·

2025/12/03

Behind Fallout’s apocalyptic sci-fi and retro nostalgia is a masterclass in sound design. In this episode, we explore how the audio teams behind both the video games and the TV series built Fallout’s signature sonic identity, from Pip Boy clicks to weapon blasts to mutant roars. Along the way, we uncover how the show’s creators honored the classic game sounds while reimagining them for a bigger, more cinematic experience. Featuring Mark Lampert, Sue Cahill, Daniel Colman, Steve Bucino, and Keith

en

32:21

Defying Gravity: The Audio Wizardry of Wicked's Live...

Twenty Thousand Hertz ·

2025/11/19

In movie musicals, the vocals are almost never recorded live on-set. Instead, the actors pre-record their songs, then lip sync to those recordings while filming. But on Wicked, they threw out the rulebook, and recorded all of the lead vocals live. In this episode, Production Sound Mixer Simon Hayes reveals how they pulled off this audio feat. From cleverly disguised lav mics and in-ear monitors, to “silent wind” machines, to a jaw-dropping live performance of “Defying Gravity,” this is the story

en

45:01

The Secret Soundtracks of Movies & TV

Twenty Thousand Hertz ·

2025/11/05

In the ‘60s and ‘70s, world-class musicians gathered in smoky studios to record tracks that you couldn’t buy in a store… but ended up everywhere. In this episode, Dallas and the TTH crew dive into the golden age of production music: versatile cues crafted for everything from car chases to romantic montages to space odysseys. Along the way, they uncover how these obscure records found their way into sports broadcasts, hip hop singles, and modern sitcoms, and reveal the vintage library track that

en

25:41

Inside Walt Disney Imagineering

Twenty Thousand Hertz ·

2025/10/22

Sound is a crucial part of what makes Disney parks feel magical… and it all starts inside the closely-guarded rooms of Walt Disney Imagineering. In this episode, Imagineers John Dennis and Greg Lhotka break down how they use music and audio to bring attractions to life, from speaker systems hidden in rock work, to the intricate timing of a Frozen water ride. Then, they reveal the surprising story of how one of Disney’s most iconic songs got a brand new verse, more than half a century after its

en

35:39

He's Mixed SNL for 40 Years

Twenty Thousand Hertz ·

2025/10/08

Behind Saturday Night Live, there’s a small army of audio professionals making the whole thing sound effortless. In this episode, Dallas goes behind the scenes at Studio 8H to meet Robert Palladino, who’s mixed SNL for 40 years… and is about to do it one last time. Along the way, he gets an unprecedented look at how this legendary show is mixed, and talks to the new Production Mixer Fred Hedemark about stepping into Bobby’s shoes.Watch Dallas' trip to SNL on Youtube. If you know what this

en

32:47

The Nursery Rhyme That Ruined a Rock Band

Twenty Thousand Hertz ·

2025/09/24

When a quiz show host asked a simple question about nursery rhymes, it seemed like harmless fun. But that moment triggered a lawsuit that would threaten to bring down one of Australia’s most iconic rock bands. In this story from the Cautionary Tales podcast, we follow the unlikely court case of Men At Work’s “Down Under,” exploring the fine line between inspiration and infringement, and the collateral damage of copyright.Follow Cautionary Tales wherever you get your podcasts. Subscribe on

en

28:11

Sound Off (Gold): Transit Tunes & Childhood Chimes

Twenty Thousand Hertz ·

2025/09/10

We’re proud to present the winning entries from our Sound Off competition: five listener-made short stories that rose to the very top. From clever tinnitus tonics to melodic subway signals, from mischievous church bells to a guitar that speaks in whispers, this Gold Collection is rich with emotion, originality, and sonic craft.Subscribe on ⁠⁠⁠YouTube⁠⁠⁠⁠ to see the latest in our video series. If you know what this week's mystery sound is, tell us at ⁠⁠⁠mystery.20k.org⁠⁠⁠. Explore Defacto

en

25:39

Yahoo! The Yodel Heard Around the World

Twenty Thousand Hertz ·

2025/08/27

It’s one of the quirkiest, most iconic sonic logos ever: a four-note vocal flourish that defined the early internet. In this episode, we follow the Yahoo Yodel on its unlikely journey from the snowy Swiss Alps to ‘90s country bars to Super Bowl ads. Along the way, we meet the real-life cowboy behind this yodel, whose voice launched a billion clicks... as well a high-stakes legal battle. Featuring musician and yodeler Wylie Gustafson.Subscribe on ⁠⁠⁠⁠⁠YouTube⁠⁠⁠⁠⁠⁠ to see our new video

en

33:18

Super Mario Bros: Koji Kondo’s 8-Bit Masterpiece

Twenty Thousand Hertz ·

2025/08/13

From the springy jump sound to the iconic Overworld Theme, the sound of Super Mario Bros. is instantly recognizable. With just five lo-fi audio channels and 40 kilobytes of space, composer Koji Kondo created a soundscape full of unforgettable melodies. In this episode, we explore how Kondo’s playful instincts, rhythmic trickery, and love of jazz fusion defined the sound of Mario. Featuring Kirk Hamilton of Strong Songs and Thomas of Thomas Game Docs.Subscribe on ⁠⁠⁠⁠YouTube⁠⁠⁠⁠⁠ to see our new

en

30:20

Sound Off: Pinball Pings, Borrowed Melodies & Airport...

Twenty Thousand Hertz ·

2025/07/30

Presenting the second short story collection from our Sound Off competition, featuring five pieces written and produced entirely by our listeners. From the sonic evolution of pinball to reused classical melodies to the battle against airport noise, this Silver Collection is a diverse and enlightening set of snackable stories.Find local showtimes to see Sketch, the first feature-film sound designed and mixed entirely by Defacto Sound. Subscribe on ⁠⁠⁠YouTube⁠⁠⁠⁠ to see our new video series. If

en

41:52

Mixing Madison Square Garden for Vulfpeck’s Biggest Show

Twenty Thousand Hertz ·

2025/07/16

When Vulfpeck played a sold-out show at Madison Square Garden, the performance looked effortless. But behind the scenes, their Front of House Engineer and Tour Manager Jake Hartsfield was juggling missing tickets, technical curveballs, and mixing seventeen dynamic musicians through a nearly two-hour set. In this episode, we follow Jake through one extraordinarily high-stakes day, and discover just how much craft, preparation, and composure it takes to make a live show feel magical. Subscribe on

en

26:10

The Music of Jeopardy! From a Lullaby to $100,000,000

Twenty Thousand Hertz ·

2025/07/02

It’s the most recognizable TV theme in America. But Jeopardy’s “Think Music” wasn’t originally written for a game show… It was written for a toddler. In this episode, we trace the unlikely journey of the Jeopardy theme, from Merv Griffin’s living room to over 10,000 episodes across six decades. Along the way, we explore the show’s sonic evolution, including honking buzzers, 80s synths, and orchestral remixes. Featuring Lisa Broffman, Jeopardy’s Consulting Co-Executive Producer.Subscribe on

en

235 results

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