What? I' comparing to the speed of the skulk particle that represents sound It self, I may be doing a dum moment but still don't understand the point
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Those are comparing the movement of something to sound. By comparing one thing with a stated speed to sound, you can then compare everything else.
Your calc, however, presumes that a creature hears and reacts to sound at perfect synchronicity. You aren't comparing to an actual speed, rather you are presuming an innate speed of a thing already.