software generated env

[Paul Nugteren van]

Damn jp6 got software generated env's! Didn't know that, there goes 
the jp6... I wanted to have a polyphonic analogue synth with some 
program memories as a study object (and fun of course!). So the 
digital side of the synth should be out of the signal path. With what 
resolution  are the envs of say a p600 or jp6 generated? I can 
imagine that if you would have an 8bit output of the cpu the DAC 
should smooth the signal quite a lot in order to have a smooth VCF 
sweep. 

The best criterium to judge a synth which uses digital methods to 
generate (a part of) the sound is frequency. I've read a book of 
Curtis Roads "Computer and Music" I think it was (had 1600 pages). It 
said that I've you wanted to change the frequency of a sound you'll 
have to apply at least 21bits (depends on how nuch you sweep the 
frequency, here it is the whole audio range) preferably 24bits for a 
smooth sweep.

My question is can the signal path from the front panel CVs be 
changed so that it bypasses the cpu without huge effort? 


Paul
  

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