I don't think time-corrected has anything to do with doppler shift, but just the phase and "alignment" of the sound waves as they reach your ear.
Vandersteen speakers, for example, achieve time-alignment by mounting the different drivers not in a vertical plane, but slighly staggered from one another. Thiel accomplishes this by having the speaker baffle angled backward. All are still subject to this doppler shift.
On the other hand, anything that creates sound is subject to doppler shift, is it not? Take the violin for example. Vibration is created as the resined horse hair is dragged across the strings. The vibration is transmitted to the sounding board through the bridge, and then to the entire body. The vibrations are similar to -- though much more complex than -- a speaker cone in that surface of the violin oscillates back and forth.
