Photographer Davin Lavikka released this short and neat video documenting the shutter sounds of several popular camera's. It's a great comparison for those photographers who have a legitimate concern over shutter noise. The video also showcases the Olympus silent shooting mode, which as seen in the video, is virtually inaudible.
Of course, everyone has a preference for shutter sounds. Personally I'm quite fond of how muted and beefy the D810 sounds. The Olympus E-M5 ll silent shooting mode is very effective though and I can imagine would be of interest to folks who shoot wildlife.
Which shutter sound catches your fancy?