Hi Benny, thanks for your reply. Benny Prijono wrote: >> is it possible to stream a WAV file to different ports using different offsets? >> > > It's only possible if you create different WAV player ports. > to speed up the whole thing is it possible to use a memory-mapped file since it's the same file being played but with different offsets? Does pjlib supports memory-mapped files in an OS-independent manner? If yes where to look? Cheers Mike