The speed of sound varies with the density of whatever it travels through. Something less dense than air means a faster relative speed of sound, something more dense means a slower relative speed of sound.
The slower sound moves, the lower we perceive it's pitch, the faster the speed, the higher the perceived pitch.
Vocal chords stretch and tighten to make sounds of different pitches. If you replace the air (Nitrogen-Oxygen mix) with something LESS dense like Helium (1/6th the density of air) then the sounds made by the vocal chords working exactly the same as they did in air, will have a higher apparent pitch because the sonds they make move faster through helium than they do through air. Please note, the vocal chords are NOT moving any faster than they do in air.
So with something more dense than air (like xenon about 4 times more dense, or even better Sulfur Hexafluoride about 16 times more dense than air and 40% more dense than water!) the sound will have an apparently lower pitch, because the sound made by the vocal chords will move more slowly through the denser gas and so have a LOWER perceived pitch.
The gas that makes up 21% of Earth's atmosphere is oxygen.
Nitrogen makes up about 79% of the atmosphere.
Rainfall can increase the water level of a pond, making it deeper. Heavy and prolonged rainfall can lead to runoff, which can fill up the pond quickly.
Nitrogen is the gas that makes up the majority of Earth's atmosphere, comprising about 78% of the air we breathe.
What gas makes up the majority of the Earth's atmosphere
Helium is the only gas that makes your voice squeaky.
Anti-Helium as far as I know. Why do you ask? Is it because you're Justin Bieber and really NEED a deeper voice? Or some other odd reason?
It depends. My voice got deeper when I was 12.
Helium
Sophia Bush's voice was deeper due to her naturally raspy voice and her health. During the seasons where she had a deeper voice, she claimed that she was ill.
Sulfur hexafluoride.
Helium
When he's Mysterion, he makes his voice raspy and deeper on purpose. However, the reason why his voice is different in the episodes and the movie is caused by him having two different voice actors.
Your voice is deeper in the morning because the vocal cords swell and thicken while you sleep, making them vibrate at a lower frequency, resulting in a deeper voice.
Inhaling sulfur hexafluoride gas temporarily changes the resonance in the vocal tract, making the voice sound deeper. However, this should only be done under controlled conditions as inhaling certain gases can be harmful.
Yes it can. the reason why is because you can get lung cancer. your voice will sound deeper
The voice is deeper in the morning because the vocal cords swell and thicken overnight, making them vibrate at a lower frequency, resulting in a deeper sound.