This is the NullDC 1.6 beta emulator i use
i have made a change to the NullDC.cfg file, the buffer size under [nullAica] is now 4090, it was
1024, i changed it to 4090 because the audio was crackling
you should not need any another files for this emulator, you should be able to download a game and
play, the game i used to test this emulator was Marvel Vs Capcom 2
here is a tutorial for NullDC 1.6 beta youtube com/watch?v=2JG1WEpxKOE
here is another video, How-to Set up a Xbox 360 Controller and VMU with nullDC youtube
com/watch?v=ibLSSbPZom8