I now can speak consistently for an hour in a feminine voice—decent pitch, resonance, and inflection—before needing to rest. Moreover, my voice now passes on the phone.
So my voice therapist and I decided to tackle my singing range, to feminize that as well. (Followers of Axis Evil know I sing with a masculine voice despite functioning in all other parts of my life using a feminine one).
I needed data to see where I stand currently:
Starting at D3 (146.832 Hz), which lies in the gender-neutral pitch range, I recorded myself singing the words “I am Emily” up the scale in half-step intervals until D5 (587.330 Hz). (But I couldn’t make it that far in practice). I used a synthesizer to provide the pitch at each interval.
I then cut the synthesizer track and ran the vocal track through a frequency analysis algorithm to get a frequency response (Bode) plot:
As you can see from the plot, I can hold it up to about middle C, but can’t currently sustain volume beyond that.
Good baseline information.