Sound produced by Humans
In human being, the sound is
produced in the voice box, called the larynx, which is present in the throat.
It is located at the upper end of the windpipe. The larynx has two ligaments
called ‘vocal cords’, stretched across it. The vocal cords have a narrow slit through
which air is blown in and out.
When a person speaks, the air from
the lungs is pushed up through the trachea to the larynx. When this air passes
through the slit, the vocal cords begin to vibrate and produce a sound. By
varying the thickness of the vocal cords, the length of the air column in the
slit can be changed. This produces sounds of different pitches. Males generally
have thicker and longer vocal cords that produce a deeper, low pitch sound in
comparison with females.
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