I’m frequently running my Zynthian V5’s audio output into my Roland FP4F digital piano, which plays audio from its line input jacks at a fixed volume that can’t be changed.
This means I would like to use the Zynthian’s master-volume control (knob 3) to control the Zynthian’s output volume, which works, but whenever I switch ZS3s the master volume reverts to that in the ZS3, which is tedious. I have unchecked the “Audio Levels on Snapshots” box on the Admin screen but this does not appear to change anything. I’m on oram-2601.1.
Is there a way of exempting the master volume setting from being changed by ZS3s?
Sorry, no. The mixer controls are just like any other audio processor and their settings are saved to zs3. Some possible solutions may be:
Save the preferred main fader to the default ZS3 and avoid adjusting (much).
Use soundcard (ALSA) audio level control to adjust the main output. The ALSA settings can be exempt from snapshots (as you have seen) and are not saved to zs3. This may work if you can bind an external controller (e.g. MIDI CC) to the soundcard output level.
Consider the signal flow. The chain (including main chain) configurations are part of the zs3, just like a preset in a synth so their parameters are affected by recalling a ZS3. The soundcard settings are more like the hardware volume / level controls you may find on a synth.