Another problem you might notice is a significantly reduced ability to pick out signal from noise. e.g. someone talking against music or engine noise. I think

Another problem you might notice is a significantly reduced ability to pick out signal from noise. e.g. someone talking against music or engine noise. I think this is due to the brain being able to 'boost' signals based on directional information, which you can no longer do with one ear. Social impact => harder to follow conversations in pubs/bars etc. One useful adaptation is to provide directional hearing by cupping your hand on your ear and pointing the cup in different directions. This also saves you having to turn your head as much. It's surprisingly effective. It's also fun for two-eared people. You can pick out distant sounds much more clearly if you cup your hands around your ears and track around. A bit like having an ear telescope.