I have been running a ‘fixed’ version of Skype on my Linux systems for some time (Fedora 20, x86_64), which included ‘PULSE_LATENCY_MSEC=30’ in a skype script to run the executable (skype-bin)..
Recently, I have experienced garbled and ‘sped up’ sound, and this was easily demonstrated using the Skype Test Call facility..
The solution to this used to be the one that I was already using – to run skype with PULSE_LATENCY_MSEC=30 – but I now found that this appeared to be actually causing the latest problem, and skype worked just fine without it!
The solution is simple – to just remove the script, and rename skype-bin executable back to to skype..
It would appear that the engineers at Skype may have finally fixed the Linux problem, themselves?
Robert Gadsdon. August 19, 2014.
Update: It has been confirmed that – at last – the Skype executable has been fixed, to work correctly with pulseaudio.. And.. although the script caused a problem on both of my systems, it has been reported that on other systems it made no difference, and still worked OK.. (see comments below..)
RG. Aug 26.