> > The only thing I can think of is that the sound card clock is drifting
> > too.
>
> Do you mean the drift as the difference between the "real" wall-clock
> time and sequencer ticks? Or between the sequencer time and ticks?
The sequencer clock generates ticks on the pcm clock interrupt. But the
number of ticks it generates is a constant (x/y from your previous
email). Ie, each interrupt generates the same amount of ticks, even
though the interrupts might not be evenly spaced or maybe the interrupts
are two short, etc.
Are you able to play back midi+audio at the same time? I would be happy
to send you the code I'm testing. Maybe you can spot the problem...
jack.
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