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OTHERWISE DONT TOUCH
MY QUESTION . I WILL REPORT.
Q.1 WHY DOES HELIUM MAKE
YOUR VOICE GO FUNNY?
LONG EXPLANATION.
Answers
Answer:
The human voice is made up of many different tones mixed together.
“When your vocal cords vibrate, they don’t just vibrate at a single frequency, there’s a whole mix going on,” Das said. “It’s that mix that’s one of the most important factors of sound quality.”
Inhaling helium makes the higher-pitched tones resonate more in the vocal tract, amplifying them so they are louder in the mix. At the same time, it makes the lower tones resonate less in the vocal tract. The two effects combine to create a Chipmunk-like, flat sound.
“Essentially, the higher frequencies become stronger, they’re amplified over the lower frequencies,” Das said.
Usually, the sound waves your vocal cords produce travel through air in your voice box. But when they go through the helium that you’ve inhaled, they travel about three times faster. That’s because helium is so much lighter than air.
When sound waves speed up but their frequency stays the same, each wave stretches out.
Depending on its unique shape, your voice box naturally resonates or vibrates when certain wavelengths hit it. When sound waves are stretched out because they are traveling through helium, lower-sounding wavelengths get so long that they don’t fit right in the voice box anymore, so your vocal tract doesn’t resonate and amplify those tones. The higher tones, meanwhile, are stretched out so they’re the perfect size to be amplified. Those get boosted, and it sounds like this:
Sulfur hexafluoride has the opposite effect on the voice as helium.
“Essentially, the phenomenon is the same, it just happens in the other direction,”.
It’s a gas that is much heavier than air, so when it is inhaled, it shortens sound waves so the lower tones in the voice are amplified and the higher ones fade out. That lesser-known but perhaps cooler party trick sounds like this:
Inhaling a little helium or sulfur hexafluoride won’t hurt you in small amounts, but it’s best not to breathe in much: both gasses prevent oxygen from getting to the brain.
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