I'm currently writing a midi sequencing application. Due to the nature of it. I need to send the midi commands in the most realtime way i can. So i'm using SIGALARM every 10ms to trigger a player step and send the proper midi commands. This seems to work fine.. althought when there is some system load lags a little bit. Still i can give the program more priority and there's not any problem. BUT if i try to run it and via a loopback: midi out -> external midi device -> line in - I try to record what i do to disk (using xwave or gmurf) .. i get _ugly_ delays that mess up my playing entirely each time the audio recording application writes to disk. Is there any way i can fix this? Should I use a separate thread against a gettimeofday function instead SIGALARM? Any idea why the sound corrupts so much when sends sound to disk? or at least a sound recording application that wont kill my timer? Thanks in advance! Juan Linietsky
