Why does helium change the pitch of your voice?
Helium is a very light gas. Light gases tend to float (as seen in a helium filled balloon). It is a light gas because it moves very very fast. It is said to be NOT dense.
When you have sucked Helium in, your breath that you use to speak will pass through the Helium gas. Your breath will now be moving faster. Things that move faster tend to have higher pitch.
Note: Helium does not change your vocal chords or your vocal muscles... just the speed of your breath.
Also, Argon gas can make your voice sound lower. But this is dangerous because it can sink into your lungs. So I was told you should be hanging upside down if you ever want to take a sip of Argon gas. I have never done this. DO NOT ATTEMPT this. You could pass out and suffocate if no one is around you.
It is the element helium, symbol He. The change in sound is because helium is much lighter than air and thus the speed of sound in helium is much faster than the speed of sound in air. This change in the speed of sound retunes the resonant chambers in the vocal tract to a higher frequency, making the voice sound "chirpy" while the helium is present.
Yes, it does. Denser media will produce lower tones, whereas less dense media will produce higher tones. A clear example of this is the change in the pitch of the voice that occurs when people speak after inhaling helium. I disagree. The same pitch can be obtained through any type of medium by shortening or lengthing the string to compensate for the density of the medium in which the string resides. I believe your query…
Helium causes your vocal cords to tighten up. This makes your voice go up in pitch. Helium is a harmless gas. It is often used in deep sea diving, which makes the aquanauts living in undersea laboratories sound like Donald Duck. Also, it's fun to do at parties to make it seem likes there a mouse around. I did it once and I laughed my butt off. XD
Yes, the overall pitch of your voice can be changed through practice or working with a speech therapist. It takes work, but it definitely can be done. Voice pitch in a note sung by an individual: if I were to sing an A flat, that would be my pitch. Seeing as all melodies are not comprised of only A flats, I would argue that voice pitch could, in fact, change quite drastically, as Christina Aguilera…