I think I've had that driver (or we were on the same bus!) because I remember this happening on that bus when I took it as well.
To the larger point about loud conversations -- any conversations above what is appropriate to the situation, even in person conversations, are annoying. Ever go to a restaurant and you're able to hear the loud table across the room because they're yelling while everyone else is speaking at a normal volume? Highly annoying. "Who ordered the mojito? Monique ordered the mojito!" I'm just trying to enjoy a cocktail and talk with my partner, not listen to your cacophony.
Doubly annoying if you have a speech processing disorder of any kind. I already have a hard time understanding people on one side of my head, I don't need to also be picking up someone's loud voices interrupting my attempts to listen.
To the larger point about loud conversations -- any conversations above what is appropriate to the situation, even in person conversations, are annoying. Ever go to a restaurant and you're able to hear the loud table across the room because they're yelling while everyone else is speaking at a normal volume? Highly annoying. "Who ordered the mojito? Monique ordered the mojito!" I'm just trying to enjoy a cocktail and talk with my partner, not listen to your cacophony.
Doubly annoying if you have a speech processing disorder of any kind. I already have a hard time understanding people on one side of my head, I don't need to also be picking up someone's loud voices interrupting my attempts to listen.