> Anyway (there have been some incomprention) my card is a pci audigy > player, not an usb one. > > I use for example ams in realtime driven via midi. If I don't use jack > and output directly to alsa, why doesn't the latency decrease? > I think: > midi in latency + synth lat + alsa out lat > instead of > midi in latency + synth lat + jack lat + alsa out lat > > What's wrong? Jack does not _add_ any latency to the system. -- Fernando