[sdiy] MIDI Velocity on analog synths

[MTG]

Thanks all for the info. I coded up a test section and it works OK. I 
guess I need to add a CC parameter for setting the depth or gain or 
whatever you want to call it ... the amount velocity affects the cutoff 
or resonance. Right now I have it basically 0 velocity is zero CV and 
max velocity is max CV and that's pretty crazy.

I haven't played around with connecting the DAC to the CEM3310 ADSR's as 
I only have one DAC channel left and no idea where it would be 
useful/possible in the ADSR's.

GB

On 2/5/2014 6:02 PM, Andrew Simper wrote:
> In the past I've handled the note on and note off velocities as
> different modulation sources, you typically don't want to combine them
> into a single source because of the problems mentioned in this thread.
> Otherwise just keep the note on velocity and throw away the note off
> velocity. If you are in charge of voicing duties you may also want to
> keep a stack of previous note ons as well as note on velocities so you
> can re-assign old voice notes and velocities when playing overlapped
> then released notes.
>
> A good (but complicated) place to send the velocity is to scale the
> envelope outputs using the attack time of the envelope to smooth the
> scaling. This means you can adjust the snappiness of the filter or
> amplitude response using the attack pot. If a dual pot is not an
> option then you could add a single "velocity glide" pot to adjust the
> smoothness of velocity response instead before sending that signal to
> scale the envelopes.
>
> All the best,
>
> Andy
>
>
> On 6 February 2014 02:11, MTG <grant at musictechnologiesgroup.com> wrote:
>>
>> I'm thinking of adding velocity as a CV parameter to the Pro One and I'm wondering how this is typically done on other synths or MID-CV converters since I have neither. I imagine when an Note-On arrives you apply the velocity value (voltage) to VCF Cutoff or Resonance or whatever, but have you noticed if the Note-Off or Note-On with velocity of zero then zeroes the velocity CV?  Or just leave the voltage where it is until the next Note-On?
>>
>> If you have any experience with this let me know...
>>
>> GB
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