[rec.music.synth] Apple MIDI Manager and MIDI Clock

nick@cs.ed.ac.uk (Nick Rothwell) (04/29/91)

Now, maybe it's my imagination, but it seems to me that MIDI Manager doesn't
know much about MIDI clocks. The time ports can translate from MTC to/from
MIDI beats, but at a fixed tempo (125bpm). So, how would I generate MIDI clocks,
at my specified tempo, from an MM application? Realtime clock packets out
of a data port? And how should a MM application sync to another at the beat
level rather than absolute time?

One of the things I tried was the timebase demo application (HourGlass) with
its timeport running to the serial driver, and the serial driver enabled for
MIDI clock output. That gets me a solid 125bpm sync code. Not too useful.

Performer seems to manage both input and output of MIDI clocks, so it's
presumably possible, but I don't see anything in the documentation which
explains how.

	Nick.

-- 
Nick Rothwell,	Laboratory for Foundations of Computer Science, Edinburgh.
                nick@lfcs.ed.ac.uk    <Atlantic Ocean>!mcsun!ukc!lfcs!nick
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