My friend and I were talking about power requirements in loudspeaker design and the fact that almost all of the power is required to drive the woofers and move lots of air.
Then he asked “do basses exert more energy talking or singing than sopranos?”
Or put another way, does a lower frequency voice need more power (energy) to achieve the same volume as a high voice?
I would argue that these things are hella complicated to accurately say due to the complexity and inefficiency of biology. for example, a lot more power might be required than is present in the output wave, because of losses in the process of sound formation.