How does music get recorded and stored?

Brains On! Science podcast for kids

Lemonada Media

Kids & Family, Education For Kids

4.5 • 14.7K Ratings

🗓️ 25 November 2025

⏱️ 32 minutes

🔗️ Recording | iTunes | RSS

🧾️ Download transcript

Summary

Most of us take listening to music or podcasts for granted. You can find them on your phone, in the car or just about anywhere you can imagine. But, have you ever wondered how those sounds were captured in the first place? To find out, Molly and Co-host Canyon shrink down and follow a sound waves as it is recorded and stored. They meet a robot who really loves to eat old school media, like cassettes and CDs. And they learn how speakers turn information into the music we hear. All that plus a new mystery sound. Want to support the show? Join Smarty Pass to listen to ad-free episodes or donate! Click here or a transcript of this episode. See omnystudio.com/listener for privacy information.

Transcript

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0:00.0	Have you looked at the calendar lately? The holidays are coming up fast, like a sprinting cheetah
0:06.0	hungry for merriment and joy. But don't fret, we are here to help. We've got a great
0:12.9	gift idea, the Smarty Pass Galactic Explorers Club, and it's on sale. You get ad-free versions of all of our shows, discounts on merch,
0:23.6	and I'll do a personal message for anyone on your gift list. Just join by December 15th to make
0:30.2	sure you get that message in time. Head to brainson.org and select the Galactic Explorers
0:37.0	Club.
0:43.4	Oh, and we're doing a Smarty party December 6th for all of our Smarty Pass subscribers with games, mystery sounds, and more.
0:46.6	So if you sign up now, you can be there for the fun.
0:49.9	Again, join the Smarty Pass Galactic Explorers Club today,
0:54.4	get the sale price, a message for the holidays, and cross one big thing off your list.
0:59.5	Thank you so much for your support. Lemonado Brains on universe.
1:16.4	You're listening to Brains on.
1:18.4	But we're serious about being curious.
1:25.3	Hey friends.
1:26.8	Ever wonder how you're hearing me right now?
1:29.6	I mean, it's not like there's a tiny Molly hidden in your speaker telling you stuff.
1:35.7	That would be weird.
1:37.5	Very.
1:38.4	But how is sound like music or podcasts recorded and played back?
1:43.0	We're going to surf a sound wave to find out.
1:45.5	Plus, we'll find out how microphones and speakers work.
1:49.6	And meet a robot who has eaten several decades worth of music.
	...

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