Most recent answer: 06/11/2015
- Tim (age 17)
Heidelberg, Baden-Wuerttemberg, Germany
Yes, that's typically what it would mean. Think of low-frequency sound, say at the moment that the pressure is up near the ear. The headphone diaphragm would have to pull back away from the ear to cancel that. That same motion would increase the pressure just outside the diaphragm.
There are, however, other places that energy can go, such as heating up parts of the electronics, so the conservation of sound energy doesn't have to be exact.
p.s. Here's some old discussion of the issue: .
(published on 06/11/2015)