for those of you having skype issues on fedora 20 /korora 20
I had a bit of a problem with a buzzing sound or no sound on your skype.
Here’s what should work for you
# sudo sed -i 's/^Exec=.*/Exec=env PULSE_LATENCY_MSEC=30 skype %U/' /usr/share/applications/skype.desktop
this helped sort out my issues.
hope it helps you out as well.
many thanks to this guy.