EPulse itself is very simple to use. The more complicated task is to build some xml files for epulse. A few sample files are given in the epulse-sample folder, you can start playing with these.
Click on the 'Process file...' button to load your XML file. You should see some messages below and if no errors are found, the WAV file will be generated. If some errors are found you must correct your XML file and click on the 'Process file...' button again.
The Unix version of epulse is in command line only. Open a terminal and enter:
epulse myFile.xml
Where myFile.xml is the name of your xml file. Some messages will appear and if no errors are found the wav file will be generated.