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onelist@... wrote:
>any musician who has played a rythmic instrument knows that the timing
of
the notes played is >the most important factor in getting a solid beat
feeling
I'm afraid you've missed the mark on your post. A little thought and
analysis easily shows that.
The current MIDI throughput per MIDI cable or port is about one MIDI
instruction per .67 millisec. (Pardon if my memory is slightly out on
this.) External synth timing delay is usually at least a few millisec, with
timing errors varying widely per synth, but certainly usually the order of
the time of a MIDI instruction. So it's easy to see that getting timing
down smaller than the time of a MIDI instruction brings little gains
(besides marketing).
And if you use LA's environments to algorithmically enhance the
"live" feel
of a MIDI sequence by calculating things like pitch bend, filters,
envelopes, etc. from each note on, you see that each note on generates a few
(and varying number) of MIDI instructions that preceed the note on. This
brings the timing "errors" of the note on up one or two to three
or more
millisecs easy! So obviously, getting timing errors down to sub-millisecs
is more or less a waste of time if you're interested in advanced MIDI
capability.
If MIDI timing and capability is to be significantly improved the MIDI
throughput needs to be greatly increased. This is easily technically done
by a factor of 20 to 100 or even more given present technologies (USB, Cat 5
cables (ethernet)). Then it makes sense, and is feasible, to have timing
that is again on the order of a MIDI instruction. And this timing will be
20 to 100 times better than present.
WISH: The industry adopts a Cat 5 cable "enhanced MIDI speed"
standard.
(Cat 5 carries 10 to 100 Mb/s on long cables compared to USB). All other
parts of the MIDI standard could stay the same. Equivalents of Unitors,
etc. pop up with lots of Cat 5 ports. Lots of "small" soundcards
with just
Cat 5 MIDI in/out and spdif in/out to put into PCs and Macs. "Big"
soundcards with lots of spdif in and a few audio and spdif out. With this
setup, you'ld have tight timing with digital accuracy with a bank of
computers. Hopefully synth makers would adapt so they could be plugged in
to.
Living in dreamland ....
Jim Savage
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