Are the visual and sound effects that we see in the show visible/audible to the individuals within the show itself? Do they ever react or mention either of them? Or are they simply for us, the watchers?
Basically, while watching various shows, from TOS to Discovery, I don't believe I have ever noticed someone reacting to these (such as the blinding light or looking up due to the sound [instead of the person/item hitting the ground or similar to make them look up]). It seems more like they simply appear and people then notice there are new people/items around. They never seem to mention them either, while I do remember mentions of humming of grav-plating or EPS relays, I can't recall any mentions of someone discussing the visuals/sounds of someone transporting.