Is Voice Deepness Genetic?

When we hit puberty, hormones invariably cause the voice to change. During this time the vocal folds

lengthen and thicken, causing them to resonate at a lower frequency, which produces a deeper pitch (think of the strings on a guitar). ... Genetics also play a role in how our voices mature.

What determines the deepness of voice?

The deepness of a voice is primarily determined by the length and thickness of the vocal cords. Longer and thicker vocal cords produce lower, James Earl Jones-like pitches. ... As your body went into testosterone overdrive during puberty, the hormone went to work on your vocal cords, causing them to lengthen and thicken.

Is a deep voice hereditary?

So far, there is little research on how much genetics contributes to our voice (Sataloff: 1995). ... Despite this however, one genetic difference clearly impacts the voice: sex. Males have larger vocal folds than females. This means that they typically have deeper voices than females even before adolescence.