Question

Why do females have a high pitched voice while the males have a more deep voice?

Answer 1

Males and females have different vocal fold sizes. Adult male voices are usually lower pitched due to longer and thicker folds. The male vocal folds are between 1.75 cm and 2.5 cm (approx 0.75" to 1.0") in length, while female vocal folds are between 1.25 cm and 1.75 cm (approx 0.5" to 0.75") in length. The vocal cords of children are much shorter than those of adult males and females.

Answer 2

this because of adams apple present in the throat the voice box of womens create high pitch voice as becuse of the harmones and the boys have more deep voice this also because of differnt types of harmons
Or
During expiration air is forced out of lungs and it sets vocal cords into vibrations which produces sound. These sounds are then with the help of oral parts turned intovoices. Males and females havedifferent vocal fold sizes. Adultmale voices are usually lowerpitched due to longer and thicker folds.