I have uploaded a new version of lockdaemon (0.0.3-1)
This is a minor change, you now have config file called lockdaemon.conf in your pictures folder (/home/user/MyDocs/.images/lockdaemon.conf) which should be visible also under windows.
There are two lines, the first is a path to opening sound, the second is closing sound. Edit them as you wish (you need full path).

I will make a proper settings applet some time next week (my machine is finally back), having possibility to set sounds and vibrations for both keyboard sliding and blocking separately. I will also try to work on respecting the global profile setting. And I guess this will make it feature complete.