Synapse Audio Minimoog emulation "The Legend" for VST/AU and RE released!

[chk071]

You might wanna read that again, or better yet, try The Legend.

Can't try it again because of their 1-month demo mode

Try Monark, Model 72, Diva, they all have it.

[e-crooner]

Nope it's not quite like "pick-up" mode (which means continuing the envelope from current position). I mean it does continue from current position, but the thing is, in those certain conditions, the envelope goes way above the maximum voltage specified. So, let's say metaphorically the maximum envelope level is 1, and minimum is 0, a Minimoog envelope can go way above 1 in those conditions. That's why it's called an "overshooting envelope". Most other synths don't do this.

Just tried it in Diva, it does get brighter in mono mode.
Not sure I like that behavior, depending on the type of patch it might be unpleasant because the attack gets washed away.

[EvilDragon]

Well, if you want to emulate a Minimoog, you'd want it like that. If not, Diva has other envelopes too.

[e-crooner]

Well, if you want to emulate a Minimoog, you'd want it like that. If not, Diva has other envelopes too.

I know, in fact I hate the init patch in Diva because I like the 2 VCO, Cascade filter and digital envelope modules the most

[Halonmusic]

Funny enough, the Minimoog envelopes are not clipped. They're possibly the least clipped, highest overshooting envelopes in synth history.

what does that mean actually?

[EvilDragon]

That means that envelope overshoots the maximum intended voltage, rather than being clipped to it.

[ENV1]

That means that envelope overshoots the maximum intended voltage, rather than being clipped to it.

Without having viewed any schematics i always pictured it working something like this:

- Note Trigger pumps some voltage into a capacitor

- Amount of voltage depending on Amount Of Contour

- Charge/Discharge curve according to Attack Time and Decay Time

If a note is triggered while the capacitor still has voltage in it from the previous trigger, the voltage from the latest trigger is added to that, thereby resulting in a voltage-accumulation effect. This 'pumping' can be done until the capacitor is full, which voltage-wise should be about equal to full Sustain level. (Because anything more might damage the circuitry.)


Like i said, just theorizing out loud here based on observation, but i wouldnt be surprised if thats exactly how it technically works.

[e-crooner]

That would mean that there actually is no overshooting, but in reality other synths' envelopes are undershooting

[Urs]

I think there's a lot of overthinking here. A good idea of what's happening can be found in the user manual for the IMHO best analogue recreation of the very circuit, found here:

https://ajhsynth.com/pdf/MiniMod%20Dual ... Manual.pdf

There's a couple of pictures that illustrate the phenomenon.

There are two factors that are absolutely essential when attempting to faithfully recreate the iconic Model D envelope behaviour and function, firstly the very fast exponential slope , which when used in conjunction with the (near) linear slope of the original VCA is largely responsible for the famous Model D “punch”. Secondly, the re-trigger behaviour is quite unique; multiple retriggering progressively increases the output level so that either the volume increases incre- mentally or the filter opens incrementally with each extra key press.

[Halonmusic]

Thanks ED, ENV1 and Urs.

[Funkybot's Evil Twin]

RePro-5's envelopes do a similar thing. Let them open up a little into the attack phase and quickly repeat a note and the envelope isn't starting back at 0. Also recently learned (or had forgotten when it was first released) that the Prophet-5 reallocated voices. So if you play the same note repeatedly, it's actually firing off the same voice instead of cycling between them. RePro-5 offers the option via the reallocation tweak/jumper.

Just kinda interesting as you get into the nuts and bolts of some of these deeper models and the attention to detail.

[e-crooner]

I think there's a lot of overthinking here. A good idea of what's happening can be found in the user manual for the IMHO best analogue recreation of the very circuit, found here:

https://ajhsynth.com/pdf/MiniMod%20Dual ... Manual.pdf

There's a couple of pictures that illustrate the phenomenon.

There are two factors that are absolutely essential when attempting to faithfully recreate the iconic Model D envelope behaviour and function, firstly the very fast exponential slope , which when used in conjunction with the (near) linear slope of the original VCA is largely responsible for the famous Model D “punch”. Secondly, the re-trigger behaviour is quite unique; multiple retriggering progressively increases the output level so that either the volume increases incre- mentally or the filter opens incrementally with each extra key press.

I don't quite get that part. What aspect of the 'original VCA' is linear? The volume knob?

[EvilDragon]

RePro-5's envelopes do a similar thing. Let them open up a little into the attack phase and quickly repeat a note and the envelope isn't starting back at 0.

Yeah that's the "continue from current level" thing most any analog envelope will do.

[chk071]

Another reason to use software...

[Urs]

I don't quite get that part.

You don't have to, it's irrelevant to your original question ("What is a clipped envelope?").