Surge XT Amplifier ADSR Keyboard tracking

[menomosso]

First post here: I hope that I haven't missed this feature in either the manual or a search of the forum:

Thank you so much for this truly amazing synth.

Would it please be possible to have Amplifier-specific ADSR Keyboard Tracking (not just VCF) added as a feature please?
This, to me, is such an important feature of realistic sound creation that seems to be implemented on so few synths.

Many thanks for any help/response,

MenoMosso

[baconpaul]

Can you help me understand that feature a little more?

Right now you can key track any feature in surge by using the key track modulator in the mod matrix,. The VCF has a hard-wired path but you can use key track for anything else you want.

But I'm not sure what a key track specific ADSR envelope is. Perhaps you could expand on that a touch?

[menomosso]

baconpaul many thanks you for the reply; you might well have solved my dilemma, Ill have to try it in the morning (UK).

What I simply meant was is there a way to alter the way that the amplifier EG tracks across the range of the keyboard so that, for instance, notes at the top of the keyboard would receive a shorter envelope response (volume length) than those towards the bass where the envelope duration is longer (the volume lasts longer in much the same way as a piano works). The only difference here is that it is volume related tracking rather than filter/harmonics/brightness related.

I have seen synths before where the Amplifier ADSR section has its own Keytrack from the Keytrack for the Filter. I hope that this makes sense.

[baconpaul]

Oh sure. Here's how

1. Make sure the Amp EG Attack is not at the minimum. So make it, like, 1/4 second or something
2. Arm the ketrack modulator. This basically outputs 100% per octave. So modulate the attack down by 1/16th of a second or so
3. Play across the keyboard

the key track modulator is a source which outputs (key - key track-root)/12 where key track root is a patch feature in the ui.

There are almost no hard-coded modulation paths in surge. The only ones are AEG -> VCA Amplitude and FEG -> Filter at depth, and filter key track at depth and velocity -> AEG amplitude at depth. For the rest use the mod matrix and all the sources are there.

If that works, please close the issue.

[baconpaul]

KeyTrackDemo.fxp.zip

and here's a patch which adjusts a bunch of things with key track. play it from like G2 to G5 or so and you'll see right away