Twenty Thousand Hertz

Are you afraid to fly? Does even the thought of boarding an airplane make you anxious? You’re not alone. Millions of Americans suffer from clinical aviophobia. While some manage to distract themselves long enough to endure a flight, countless others avoid flying altogether. What are those mysterious sounds that trigger our fears on airplanes? And how do we keep our anxieties from interfering with our lives? Featuring Dr. Devika Fiorillo, Ph.D., a clinical psychologist who specializes in anxiety disorders, and Tom Finnegan, a commercial airline pilot with more than 20 years in the air. 

Twenty Thousand Hertz is produced by Defacto Sound.

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Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/flight

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What is the oldest recorded sound in history? For over 100 years researchers thought they knew until a mind-blowing discovery by historians found something new - and technological advances allowed it to be played back for the first time in history. What is the oldest recording of a musical performance, president, battlefield, television broadcast, cell phone call, and more? Featuring Patrick Feaster, co-founder of FirstSounds.org, three-time Grammy nominee, and Ph.D. in Musicology as well as Lynn Novick, award-winning filmmaker, and co-directing partner of Ken Burns. 

Twenty Thousand Hertz is produced by Defacto Sound.

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Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/soundfirsts

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Noise pollution is something we’ve all experienced. Road construction, motorcycles, passing aircraft - the list goes on and on. Other than being just plain annoying, what effect does noise pollution have on our lives? In this episode, we take a look at the physical and psychological effects of noise pollution on humans, as well as the wider and equally devastating environmental repercussions. Featuring Les Blomberg, executive director of the Noise Pollution Clearinghouse, and Rachel Buxton, acoustic ecologist, conservation biologist, and postdoctoral researcher at Colorado State University. 

Twenty Thousand Hertz is produced by Defacto Sound.

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Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/noisepollution

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71% of the Earth is covered by water. And most of us imagine it to be a serene, almost silent world. But why should we have all the fun up here? Discover what sound is like just below the surface and all the way down to the ocean's depths. And see how mankind might be making it unpleasant for everyone and everything that calls the oceans home.Featuring underwater acoustician Al Jones, Professor John Hildebrand from the Scripps Institution of Oceanography, and Christophe Haubursin from Vox.com on special assignment. 

Twenty Thousand Hertz is produced by Defacto Sound.

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Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/underthesea

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When you describe yourself to others you might mention your height, hairstyle, or maybe your build. But one of the most telling things about you is something you can’t even see, yet it defines you more than you realize. Your accent tells others where you’re from, who you identify with, and maybe even where you’re going. How did accents evolve and why are American accents so different from British accents? Featuring Hollywood Dialect Coach Erik Singer and Linguistics Professor Dr. Walt Wolfram. 

Twenty Thousand Hertz is produced by Defacto Sound.

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Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/accents

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You might not realize it, but audio can be just as crucial to solving a case than video or eyewitness testimony. But understanding how to interpret audio evidence, or having the ability to enhance it to a point of intelligibility, requires highly-specialized training and expensive software. Meet Kent Gibson, one of the country's leading forensic audio experts, who's done audio analysis for the FBI, the Secret Service, and the Department of Homeland Security, among many others, and get his take on audio evidence from the missing Malaysian Airlines flight, the Trayvon Martin case, and Mel Gibson's infamous domestic dispute. 

20K is made out of the studios of Defacto Sound and hosted by Dallas Taylor. 

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Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/forensicaudio

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When it comes to movie screams, what’s the first one you think of? Is it a scream that evokes a sense of fear, pain, or maybe even… humor? Perhaps you immediately think about a famous “Scream Queen” or a specific scene from a movie. But you may not realize that the most famous scream in Hollywood has a name—and it’s been used over and over and over in countless films, television shows, and commercials. What makes it so good? And how did it become a filmmaker favorite? Featuring Steve Lee, sound designer, film historian, and creator of the Hollywood Sound Museum. 

Twenty Thousand Hertz is produced by Defacto Sound.

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Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/wilhelmscream

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We hear disembodied voices all the time, in everything from cartoons and anime to commercials and trailers. It seems easy, but it's actually an intricate craft involving a great amount of training. What does it take to create multiple, unique personalities using only a voice? Featuring voice actors Christopher Sabat (Dragonball Z, One Piece) and Cissy Jones (Firewatch, The Walking Dead). 

Twenty Thousand Hertz is produced by Defacto Sound.

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Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/voiceacting

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Our ears are sensitive, but we often don’t treat them that way. We are born with the ability to hear up to 20,000 Hz. As we age, our hearing range diminishes. On top of that, the more exposure we have to loud sounds, the greater the impact it has on our ability to hear. Find out what happens once we start to lose our hearing. Featuring Lindsay Prusick and Shaheem Sanchez (Instagram). 

Twenty Thousand Hertz is produced by Defacto Sound.

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Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/hearingloss

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Some sounds are like rug burn for your ears, while others are pleasant and soothing. We explore these sounds and get to the bottom of why we might interpret them as “good” or “bad”. Featuring Tommy Edison and David Poeppel.  

Twenty Thousand Hertz is produced by Defacto Sound.

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Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/good-bad-and-irritating

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