Q. The reason of difference in sounds on men, woman, children:
Solution:
Muscles attached to the vocal cords can make cords tight or loose. When the vocal cords are tight and thin, the type of voice is different from when the vocal cords are loose and thick. The length of vocal cords of men is about 20 mm. The length of vocal cords of woman is about 15 mm and vocal cords of children is very short. This is the reason for difference in voice of men, woman and children.
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