Posted Sun Mar 4, 2012 4:36 PM
I didn't manage to recreate the problem on my PAL system.
However I don't think it's a U23se bug. I think "Shoot'em up" isn't using it properly.
U235se proceeds commands lists.
Each time the game wants to play a sample, it issues a command list to play a single sample.
When testing the sound engine, I noticed that when the sound engine doesn't like when commands lists are issued too fast (I guess there must be a polling interval).
I think the proper way would be to enqueue all the "play sample" commands in a single command list and flush it every tick or two.
On a NTSC, it is more likely to have commands issued too fast than a on PAL system (60fps vs 50fps). This could be the explanation of the behavior you noticed.
I may fix "Shoot'em up" sometime but it's a not priority right now for me.