[mehrdadn]

An interesting human problem that I imagine would come up here is that the speaker could be getting distracted with all the noise (crying baby/siren/etc.) while the listener would have no idea what's going on and think the speaker is being confused/dumb/slow/etc... very curious how this would play out in real conversations!

[samstave]

This is really evident when a speaker hears an echo of themselves, slightly delayed, back through their speakers.

It's really hard to speak when what you say comes echoing back.