[PD] midi syncro
mpuckett at man104-1.ucsd.edu
Wed May 16 21:39:30 CEST 2001
Well, actually I'm going to try to improve both input and output jitter by
making my own time-tagging mechanism, both for input and output, in user
space. That way it will work on all the platforms the same way...
On Tue, May 15, 2001 at 06:02:29PM -0400, Karl MacMillan wrote:
> On Tue, 15 May 2001, jfm3 wrote:
> > On Sun, 13 May 2001, Miller Puckette wrote:
> > > [...] I can probably
> > > get the timing jitter down to 5msec or so but it'll never be real pro
> > > quality until someone figures out how to use kernel-level time tagging on
> > > MIDI output...
> > Does that mean you need tagged messages from the kernel level drivers, or
> > that you can get tagged messages but you don't know how to use the tags in
> > relation to the rest of Pd?
> > I know there is MidiShare, which works on all the Pd platorms, and does
> > tagging...
> This comment was related to output not input - I think what Miller is
> referring to is using the OSS sequencer to schedule midi events. I guess
> the idea is to schedule events in the future with the sequencer - this
> would reduce jitter but increase latency. Also, wouldn't event
> granularity still be limited by at least DACBLKSIZE (somewhere around
> > (jfm3)
> | Karl W. MacMillan |
> | Computer Music Department |
> | Peabody Institute of the Johns Hopkins University |
> | karlmac at peabody.jhu.edu |
> | mambo.peabody.jhu.edu/~karlmac |
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