How is sound produced by Humans
It is produced by voicebox (called larynx)
It is at upper end of windpipe
There are 2 vocal cords attached to it
There is narrow gap between them from where air can pass
Process followed
When we are not talking, vocal cords are far apart from each other
But when we start talking, vocal cords come together leaving only a narrow gap
Air passed through this narrow gap in vocal cord
This makes vocal cords vibrate and sound is produced
How does voice depends upon length of vocal cords?
In men, vocal cords are long (20 mm in men), producing heavy voice
In women and children, vocal cords are shorter (15 mm in women), producing shrill voice
