earphone tone
the obnoxious noise someone makes when they're too distracted by their earphones to know they're talking like a madman
'I'm not yelling, I'm just being loud!', he's in the elevator with 10 people.
'I can't hear you, I'm in my own world!', he's talking to his friend in the middle of a conversation.
'I'm not shouting, I'm just being me!', he's in a quiet restaurant.