Sustain pedal won't work with AU

[David-san]

Hi @chucknology, welcome to this community forum.

@chucknology

When I press the pedal when playing the B3 from Arturia, I see in the rackspace that the pedal is pressed but the note doesn’t sustain.

First of all, once you assigned a MIDI message (e.g. CC64) to a widget, you MIDI controller only controls this widget, nothing else and no more else. In order to control a plugin, this widget has then to control one of its parameter. If Arturia B3 has a sustain parameter, that’s the one you have to assign to the widget. If, to be sustained, a plugin need a CC64, then you can assign the CC64 parameter of the MIDI in block which is connected to the plugin. But basically you should never have to control a plugin using MIDI message, but only host automation parameters.
In the present situation, if your plugin has not sustain implemented, as @jpt mentioned, we have a GP Scriptlet plugin which can be added on the MIDI path to the plugin and which sustain parameter can be mapped to a widget.

[Gig] Sostenuto and Sustain

Scriptlets in this gig file allow you have a sostenuto pedal and/or a sustain pedal for instrument plugins that don’t have these pedals. [Sostenuto-Sustain] How to use Sostenuto: insert the sostenuto Scriptlet plugin in the MIDI connection before the instrument plugin (before the sustain scriptlet if you use it, too) if you need a second sostenuto insert it in the MIDI connection before the first sostenuto Scriptlet and use them in the order sostenuto #1, sostenuto #2 assign a widget to th…