Sixteen vibrations in a second of time, will produce the gravest sound that can be heard.
How large a number of vibrations in the air can be heard?
Twenty-four thousand vibrations in a second of time, make the most acute sound that can be heard.
How is the human voice made?
It is made by means of the vocal chords at the upper part of the larynx.
What is the larynx?
The upper part of the windpipe is called the larynx.
How do these chords produce the voice?
When the air is forced out of the lungs, it causes these chords to vibrate, so as to produce the voice.
Are these chords the same in all persons?