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You are watching: Why does helium make your voice sound funny

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Inhaling helium and talking prefer Daffy Duck is a standard party trick. However not plenty of know just how helium works. Helium is lot lighter than air, therefore sound waves relocate much quicker through the gas. This amplifies the greater frequencies in her voice. The gas sulfur hexafluoride functions in the contrary way.The adhering to is a transcript the the video.

It’s a standard party trick- suck under a balloon and also you’ll sound like Daffy Duck every time. But helium isn’t the only gas that’ll change the means you talk. So what’s going ~ above here?

Your voice is as distinctive as your fingerprint. Janice didn’t inhale a balloon full of helium. That’s simply her “normal” voice. So, let"s take a watch at just how that"s also possible. The sound of your voice beginning in her voice box, or larynx. It’s a two-inch item of cartilage in ~ the optimal of your throat. In the box room two stretchy strands that tissue, her vocal cords. Which vibrate versus each various other at a specific frequency when you talk.

Women usually have thinner, shorter, tighter vocal cords 보다 men. So, their vocal cords vibrate quicker which generates a higher pitched voice. The sound is dubbed the fundamental frequency of her voice. ~ above its very own it just sounds prefer a basic buzzing. Yet when that reaches your vocal tract, the sound waves begin bouncing around. Those reflect interfere through each other. Which creates a mix of various other frequencies, that you have the right to detect with a spectrogram. So even though her voice starts out as one frequency, it ends up together a mix of many ones.

And that"s where helium comes right into play. Helium is lighter than air. Which way sound moves much faster through helium than with air – nearly 3 time faster, in fact. So the sound waves bounce about faster in her vocal tract, which amplifies the higher frequencies in her voice. It"s sort of prefer how speeding up your voice makes it sound higher.

But hold on a sec. These civilization aren"t inhaling helium. They"re sucking down sulfur hexafluoride, i beg your pardon is 6 times heavier 보다 air. For this reason sound waves move slower with it, i beg your pardon amplifies the lower frequencies in her voice. But here"s the fascinating thing. The key of your voice hasn"t readjusted when you inhale either gas, because your vocal cords move at the same rate no matter what gas you"re breathing. So your basic frequency stays, fine fundamental.

Regardless of even if it is you want to sound like Daffy Duck or James Earl Jones, save in mind the inhaling anything but air have the right to be dangerous. Especially when the gas is denser 보다 air, because it will certainly sink come the bottom of your lungs.

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And you may have to gain it out like this. What questions carry out you have about the human body? let us recognize in the comments and thanks because that watching.