I did have Audacity working fine. I just switched the audio out to an external USB device (which worked fine) then when I switched back to Built-in output the audio output stopped working properly.
When I try to play the track I just hear a loud popping sound, then silence. I then hear the same loud popping sound when I stop playback (or it reaches the end of the track).
I have tried restarting my computer and reinstalling Audacity but with no joy. I also tried clearing the config file.
I tried plugging headphones in and it works fine (still on Built-in output) but when I unplug the headphones it goes back to clicking.
The sound is working fine in all other applications I have tried.
Does anyone know how I can fix this problem? Please let me know if I can supply any information to help.
Audacity version is the latest (2.0.5).
OSX version: 10.9.4
2010 Macbook Pro