ODP: envelope and velocity

[Roman Sowa]

Almost every ADSR can be easily modified to modulate attack
peek level with CV - this is usually some reference voltage of comparator.
Also sustain level could be modifable to accept CV modulation.

You can always make CVADSR anyway :-)

Roman

> -----Oryginalna wiadomość-----
> Od:	Maarten Halmans [SMTP:halmans at globalxs.nl]
> Wysłano:	20 kwietnia 1999 23:37
> Do:	Synth-diy
> Temat:	envelope and velocity
> 
> Hi all,
> 
> I would like to use the midi velocity to control the output level of my
> analog synth. Because the velocity cv and the envelope voltage are
> summed at the input of the vca, the vca stays on after the envelope
> cycle is completed. To solve this problem I could use a modulation vca,
> right? When I add a mod vca, the envelope output level is in  proportion
> to the velocity cv. I think this could also be realized in the envelope
> generator. Instead of using the positive rail, the velocity cv could be
> used to charge the cap. Would this be a useful design?
> comments, suggestions??
> Regards,
> 
> Maarten