Yeah i think this sounds are the wind in the trees mate! Never heard that and im often at the NWA :)

First time experienced in 0.46 when a friend fired his 1911. Didn't hear any sound from different distances. After he relogged the problem was gone.

yes, confirmed in 0.47 stable. very annoying

confirmed with 0.46.1244490 stable branch. Uploading my dxdiag and crash report.
http://speedy.sh/wAfu6/DxDiag.txt
http://speedy.sh/W9mzP/DayZ-crash.rar

Same here. Im exiting a server and suddenly everything is black. When i turn on my in game steam i can see an error Message and try to hit the ok Button. This Problem existed in the Mod too. I never figured out why. under curious circumstances my screen turns black when it is getting dark and I'm looking inn a specific ankle towards the sky. going to add some pictures later.

I think this issue is solved?!?

since the new stable 0.47 i hear them constantly on packed servers