[sdiy] MIDI Velocity on analog synths

[MTG]

That makes sense however I guess where my concern was, if someone then 
uses the Drone (or sequencer), that CV value is going to continue to be 
applied. You can't subtract it back out. In the case of the Drone I 
don't think there's any way I can tell that the operator has selected 
it. I guess for the internal sequencer I can kill the value easily 
enough though...

Tom, if you check my web page you can see what I'm on about.

GB

On 2/5/2014 11:17 AM, Pete Hartman wrote:
> In fact I've seen one MIDI to CV firmware out there that does exactly
> this (I think it was unintentional though); keyboards sending Note On
> Vel=0 instead of Note Off were recognized by the gate output as having
> sent note off, but sent the zero velocity out the velocity output as
> well.
>
> When you want to set up a VCA to simply map your velocity to loudness,
> this not only kills the release--if you overlap notes (which is hard
> NOT to do if you're not playing staccato), it even will kill the note
> you still had held down.
>
> I can't think of an instance where this would be the behavior you'd want...
>
> Pete
>
>
>
>
> On Wed, Feb 5, 2014 at 12:50 PM, Tom Wiltshire <tom at electricdruid.net> wrote:
>> I think we can deduce some of the answers to that.
>>
>> Changing the Velocity CV at a Note Off would make an abrupt change in whatever was being modulated -  filter, whatever. That doesn't sound like what you want to me, so if it was me, I'd have avoided that. Given that not many synths send release velocity anyway, and all the synths that use Note On with Velocity=0 to indicate Note Off *can't* send release velocity, ignoring it doesn't seem too bad.
>> Furthermore, since we don't want the Velocity CV to disappear during a note if we've got a long release, it makes sense to keep outputting the value until a new Note On comes along.
>>
>> How are you going to add Velocity CV to your Pro-One? It sounds like a good addition. I'd be interested to hear more, since my Pro-One might benefit too!
>>
>> Regards,
>> Tom
>>
>>
>> On 5 Feb 2014, at 18:11, 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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