It’s just the factory presets for channel filter. No other settings.
I have 16 channels for a brass section.
All brass are on the same incoming MIDI port.
Each of the 16 channels are filtered by the Track Input Transformer, factory presets of 1-16.
The filters work correctly for MIDI note and CCs, but do not filter the PC messages going to the expression maps.
When I use a PC message to select an articulation on only one channel, all 16 channels of the brass section will change.
I wonder if the Program Changes get converted into text (and looses any channel info in the process). This is then used by the Expression Map to trigger a Slot to generate the Program Change. So whatever channel is set in the Map for that Slot is what gets sent out.
I do know that when you assign a message as an output mapping of a sound slot, that message will get blocked at the input.
The benefit there is that you can assign PC messages to trigger key switches, then the key switches can be triggered by a source that is not your keyboard and then those keys will not get in your way when playing multiple instruments at the same time (having multiple tracks armed). If you are playing a full brass section from multiple VSTis, you can’t have the switches active on the keyboard itself, as it will just completely ruin the situation by getting lots of unintended articulations.
The conversion to text is fine however, if it happens after the Track Input Transformer, rather than before, as only selected channel would even see the message to convert it.
I don’t see a good use case scenario for not being able to filter the messages by MIDI channel. If the user wanted to send the PC message for the Expression Maps (or key switch) to all channels, they could do that on the front end like the rest of the messages. As it stands, I can see know way to isolate PC messages by channel for the map, which from a design perspective still seems like a mistake to me. My hunch is that it ended up this way, but not with a clear intention at the design stage.
Yes, I already checked that the tracks are recording PC messages. I armed all 16 tracks, each on a separate MIDI channel and only the proper channels received the PC message as shown by the recorded MIDI data.
I can post images of the maps themselves, but it does not matter which one I am using- every one I have tried so far does this (about 12 different maps).
I’m actually finding it technically impossible to take a screen shot of the expression maps on Windows as when I use Snips to take a shot Cubendo hides the map window. Same for the input transformer window.
The input is actually quite strange. The expression map contains am entry for a note message. Depending on whether the PC remote checkbox is ticked this is then interpreted as note or pc. Indeed the remote triggrr is actually a note on midi message for channel 1:
MIDI Channel 1 might be an artifact of NOT having a MIDI Channel variable filled in at all and therefore defaulting to zero. So my theory is, that MIDI Channels were simply overlooked or ignored when designing that functionality. And with the majority of VST instruments being single/omni channel, it’s a tempting oversight/ bug in the design specification. Or a reflection of very “opinionated design”.
And incoming Program Change may have been a late afterthought in the evolution of the Expression Map functionality?
The Expression Map GUI for incoming messages also strikes me as rather odd when Program Change is selected.
That’s an artifact of Cubase loosing focus. I don’t know anything about Snips. But I do use Snip & Sketch that’s part of Windows and it lets you use a delay before taking a screenshot. During that delay if I click on Cubase it will regain focus and the Window will become visible again. So look for a delay capability.