Restart audio system in Mac OSX
From Nix-Pro
This is what you need,
sudo kextunload /System/Library/Extensions/AppleHDA.kext sudo kextload /System/Library/Extensions/AppleHDA.kext
But if you want to kill your coreaudio as well,
ps aux | grep 'coreaudio[a-z]' | awk '{print $2}' | xargs sudo kill
