Age and voice

"When you go through puberty, your voice deepens. Men's voices often deepen up to an octave, while women's voices usually move about three tones lower."https://www.webmd.com/healthy-aging/does-your-voice-get-deeper-as-you-age?ecd=wnl_gdh_060726&ctr=wnl-gdh-060726_supportBottom_title_2&mb=Bw69jj4V%403Xd0vWN4nAvZhsBxqZqfebCTdGTM0BbxsM%3d