The buzzing from people's headsets can be really annoying, so I'm not surprised by the typing being irritating -- but these things are not irritating to everyone. We do not all hear the same way or the same things.

There's a subtle hearing condition that I have whereby I find it difficult to select out some background noises. I don't know what it's called, but I've read about it and have been increasingly meeting people with similar preferences. Consequently, it's really really hard to find a restaurant quiet enough to have a good conversation. In a noisy restaurant, I can hear the person I'm with, but I have to focus so much that it is exhausting. Teaching is difficult because if people whisper to one another (and why shouldn't they?), I tend to lose my train of thought. Awareness of hearing differences helps, but I can't seem to get my current husband to stop biting his nails in the opera. -- You'd think that would be pretty quiet, right, compared to the opera and the orchestra. But it totally rattles me. All this AND no sense of smell. We all perceive differently.