How to control Flex AHDSR Decay time with Velocity?

[David Healey]

@dannytaurus You could script it, but the lack of modulation slots is a bummer

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[dannytaurus]

@David-Healey Great, thanks. I didn't realise it was okay to set attributes like that in the noteOn callback. Proper noob!

[David Healey]

@dannytaurus Yeah it's fine, but I wouldn't do it from the Interface script in a real project. That script should be deferred. Add another script (midi processor) for this kind of thing.

[dannytaurus]

@David-Healey So in general, you defer the main interface script and not use the noteOn/Off/etc callbacks at all? And put all MIDI stuff in separate, non-deferred MIDI processors?

Still wrapping may head around the way scripts are compiled at export.

[David Healey]

@dannytaurus said in How to control Flex AHDSR Decay time with Velocity?:

not use the noteOn/Off/etc callbacks at all?

I use them when I have something on the UI that is affected by note events, such as keyswitches to change articulation and updating that visually on the UI.

Interface script for non-realtime.
Separate processors for individual realtime tasks.

If you always defer your Interface script by default, which I think is a good habit, HISE will give you an error if you accidentality try to do any realtime stuff in it.

[Oli Ullmann]

@dannytaurus
You could create a velocity modulator in the GlobalModulatorContainer and give the UI button that controls your envelope a matrixTargetId. Then you can do it via the modulation system.

[dannytaurus]

@Oli-Ullmann Thanks. I looked at the GlobalModulationContainer. I haven't used one yet so might be a time to try it, however I ended up getting what I needed with a simple TableEnvelope. It gives me great control over the curves.

[Christoph Hart]

You could script it, but the lack of modulation slots is a bummer

Yeah I missed that. I'll check if I can add them in easily. Should I make the sustain modulation dynamic so that you can modulate a voice while it's playing? The AHDSR has only static modulation but I found it a bit limiting for the sustain parameter.

@Oli Ullmann you mentioned in another thread that there are UI performance issues with the Flex AHDSR envelope. Can you make a minimal snippet? Ideally this should prevent you from using it.

[David Healey]

@Christoph-Hart said in How to control Flex AHDSR Decay time with Velocity?:

Should I make the sustain modulation dynamic so that you can modulate a voice while it's playing?

Yes

[Lindon]

@Christoph-Hart said in How to control Flex AHDSR Decay time with Velocity?:

Should I make the sustain modulation dynamic so that you can modulate a voice while it's playing?

No, better to think about doing MSEG envelopes....

[Oli Ullmann]

@Christoph-Hart
Puh, I have this problem in a fairly extensive project, in which I have now removed all FlexEnvelope floating tiles and replaced them with my own panels. But I'm trying to replicate the problem.

[HISEnberg]

@Lindon said in How to control Flex AHDSR Decay time with Velocity?:

No, better to think about doing MSEG envelopes....

Actually this project seems to offer a pretty simple to use MSEG envelope. It's MIT licesne. Not really sure about the complexities of integrating it into HISE, especially regarding the modulation structure, but could be a fun experiment to combine with the ExternFloatingTile tutorial.

Likewise it just uses JUCE's strokePath to draw the envelope so with a little elbow grease you may be able to convert this all to a panel in HISEscript...

[David Healey]

@Lindon said in How to control Flex AHDSR Decay time with Velocity?:

@Christoph-Hart said in How to control Flex AHDSR Decay time with Velocity?:

Should I make the sustain modulation dynamic so that you can modulate a voice while it's playing?

No, better to think about doing MSEG envelopes....

MSEG = Kontakt style flex envelope?

[Christoph Hart]

@HISEnberg that looks pretty much like the table envelope we already have, no?

[David Healey]

@Christoph-Hart The main thing about the flex envelope in Kontakt that differentiates it from HISE's table envelope, is you have a sustain segment that can loop. Maybe we need a new table envelope with three tables, the middle one being a looping sustain...

[HISEnberg]

@Christoph-Hart you know what... it basically is except the mouse controls are slightly different (more intuitive I find):

Double-click anywhere along the envelope to add a new control point, splitting one segment into two.
Double-click an existing control point to delete it, joining two segments into one.
Drag control points up, down, left or right.
Drag any segment of the graph up or down to change the curvature of that segment.

I thought more was taking place in the "segmenting" portion but it functions like the current HISE table for all intents and purposes:
https://github.com/getdunne/juce-MultiStepEnvelopeGenerator/blob/master/Source/SegmentGenerator.cpp

[dannytaurus]

@HISEnberg The only thing missing from that is resetting the curvature. How is that done?

[David Healey]

This post is deleted!

[HISEnberg]

@David-Healey single click controls either the control point or curvature of the segment.

@dannytaurus no, I don't think it has a curvature reset. If you add a point and delete it, it resets to linear.

The codebase for this looks simple enough to follow though, I think it would be pretty rudimentary to customize it to behave like Kontakt's MSEG envelope and add custom mouse callbacks to it. I could try it myself but I would I wouldn't know how to integrate it with HISE's modulation structure or HISE's Master Clock (DAW-syncing).

[Christoph Hart]

@HISEnberg I've added a few customization options to the mouse behaviour for HISE tables last month, this should all be doable.