My previous diagrams showed only one or two hours. Here's twelve hours. This diagram only shows sections of continuous sound, I haven't included all the individual sounds that occurred.
I was mainly interested to see how much of the day I spend with headphones in. Answer - a lot. (Time with headphones in is denoted by shaded sections). Dotted lines mean intermittant sound, solid lines mean constant sound.
This is in no way scientific, and time approximations are somewhat rough.
I'm going to have a go at adding in individual sounds now, as in my previous diagrams.