Perceptions matter more than fact, this is the case of that
There is certainly a link between testosterone and voice pitch: when testosterone levels begin to rise during puberty, it triggers changes in the larynx and in the vocal cords resulting in lower pitched voices. So deeper voices become associated with other manifestations (like facial hair) of testosterone, and consequently, perceived sexual fitness. Women (and likely men) consistently make positive judgments about masculinity based on voice pitch that include both physiological and behavioral traits. In addition to the characteristics noted above, men with lower pitched voices are perceived as being physically larger (taller, heavier) and are believed to be better fighters and providers (4).
However, semen analysis reveals that men with deeper voices have lower scores on seven motility parameters