Sound Production ,, How our sound Produce !? animated video ,,
How sound is produced by humans?
In humans, voice is produced by the larynx or voice box present in the upper part of the human body. The larynx is present near the upper end of the windpipe. Two vocal cords present across the larynx stretch in such a way that it leaves a narrow space between them for the passage of air. When human speaks, the muscles present in our larynx get stretched and the opening becomes narrower. When air is made to pass through the slit, the vocal cords vibrate. With more tightening of vocal cords, vibrations in it increase and hence higher volume of sound is produced. This is the reason why the human voice has different types of pitches. We can understand this with the help of an activity.
Activity:
Take a rubber band and stretch it to its maximum extent leaving a narrow gap between the two sides. Blow air through the slit and listen to the sound. You will find that the rubber band is vibrating and a sound is produced. In the same way, our vocal cords work and produce voice
Why does the voice of children, men, and women are different?
Voice of children, men and women are different because they have different length of vocal cords. The vocal cord in women is about 15 mm long; in men vocal cords are about 20 mm long and children have very short vocal cords.
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