Vocal Cords and Sound Production
Dr. Richard Vivero, Otolaryngologist with Baptist Health South Florida, explains a woman's voice has double the frequency of a man's voice, and that is because of the length of the vocal cords and how much they vibrate.
He also says the way the sound resonates through your throat, nose and mouth is what makes you you. He points out with puberty for a woman the vocal cords change and becomes a little bit deeper, but for men it becomes much deeper.