zipper noise was: digital control

[Tony Clark]

> You use a DAC with a very large number of bits,
> taking the incoming 0-127 controller levels you
> predict a series of higher resolution line segments
> based on the spacing of the controller messages.
> 
> That is to say the microprocessor is continuously
> trying to predict a line segment that will arrive at
> the next controller point in time with the message.

   One thing I'd rather do, if we're talking MIDI control, is to use two 
CCs and assemble a larger word length.  At least then you can use one CC 
for coarse (no worse than before) and one for fine.
   But then I don't know if MIDI would really be fast enough to still 
provide smooth transitions.  Maybe.  But you'd most likely have to write 
custom software to take advantage of such a setup.

   Tony

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I can't drive (my Moog) 55!         |     The E-Music DIY Archive
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Tony Clark -- clark at andrews.edu     | aupe.phys.andrews.edu/diy_archive
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