This is the first I’ve heard of Bernie Krause, and I think what he’s done (and is doing) in the world of soundscapes is quite interesting. Bernie is the main person behind the Wild Sanctuary website, where he sells audio recordings of soundscapes taken all around the world, offers programs on sound design and blogs about soundscapes.
With his TEDGlobal 2013 talk, The Voice of the Natural World (summary only for now), Bernie gives examples of the stark contrast between the pre-development and the post-development soundscapes he’s measured and shows that while often things look untouched, the change in sounds in the environment tell us that a lot has actually changed, and the environment has been disturbed.
Have a listen to the examples in the TED link above. It certainly gives me a new perspective on wildlife noise exposure and makes me think about the environmental noise work I do.