I wonder if there has been any research done into pitch modulation of the human voice due to cultural pressure to "get ahead" An extreme example would be of El

I wonder if there has been any research done into pitch modulation of the human voice due to cultural pressure to "get ahead" An extreme example would be of Elizabeth Holmes' faux deep voice in interviews when her actual speaking voice would be an octave or so higher My speaking voice for example is about five or six semitones deeper than my tessitura when singing - and I'm not sure if that was developmental or genetic