[sdiy] MIDI DCOs

WeAreAs1 at aol.com WeAreAs1 at aol.com
Fri Jan 9 01:02:11 CET 2004


In a message dated 1/8/04 3:23:00 PM, bdu at fdiskc.com writes:

<< http://www.analoguesystems.co.uk/pdf/Menu%20layout%20RS370.PDF >>

I could be wrong, but isn't this module square wave only at the voice 
outputs?  That's not necessarily bad, since you can create the additional circuitry 
to convert the squares to saws or pulses (not as easily as in a Roland DCO, 
though -- Roland DCO's also have a proportional CV that is used to compensate the 
amplitude and saw shape of the square-to-sawtooth waveshaping circuitry -- 
without that CV, your saws would vary in amplitude and shape as the pitch went 
up or down).  

However, Mark's original idea was that you'd use the DCO's to drive some sort 
of wavetable playback such as a Wiard Miniwave (or a bunch of them - ouch$$$ 
!!).  I wonder if the Analogue Systems module can be driven reliably at the 
*much* higher frequencies that would be needed to clock a wavetable playback 
circuit?

Mike B.



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