Question

How does helium affect our voice ?

Answer 1

When you inhale helium, you're changing the type of gas molecules in your vocal tract and increasing the speed of the sound of your voice. Some people think that helium changes the pitch of your voice, but the vibration frequency of the vocal cords doesn't change along with the type of gas molecules that surround them.

Answer 2

here's your answer

helium can increasing the sound of vocal tracks and makes changing the voice .