MIDI SysEx Implementation and Assignment to External MIDI Devices

[Vladistone]

@Vladistone

I'll try tomorrow morning to check if the KM message was sent randomly include the rest of the studio periphery. But in this moment - I'm convinced of the result (which I've been looking for a few days before raising the discussion on the form. this is an indisputable fact...

The results of the investigation into the recognition and execution of KM MIDI messages in a studio environment with peripheral equipment, DAW and stand alone VSTi:

1. When KM-sending a "pure" MIDI message 90 64 7F (Note-on only):
   1.1 in a DAW: LPX is recognizes and executes the message on any AUi installed on the track in all cases (due to the MIDI KM-source is connected by default, or unless if the KM source is forcibly not disabled (using Logic inviroment));
   1.2 in Stand alone VSTi - recognition and execution occurs only in the case of a specific assignment of the KM source to the input port of the VSTi;
   1.3 MIDI receiving peripherals (with USB-MIDI, ipMIDI, or by other ethernet connection protocols) do not recognize and therefore do not execute this message (whether in the host-off or host-on DAW state). this statement is limited to the list of my equipment, therefore it is not absolute! (SSL nucleus 2 controller via ipMIDI, Roland integra-7 and Korg Kronos synths via USB-MIDI, Korg OASYS synth via ethernet connection using Mio10 MIDI patchbay).

2. When KM-sending the raw SysEx (F0 00 00 66 10 12 90 64 7F F7 - which a priori controversial / incorrect method for sending an encapsulated message part as "Note-on": 90 64 7F ):
   2.1 SysEx not recognized by DAW! Even if partially interpreted as Note-on part from SysEx);
   2.2 Stand alone VSTi - continues to recognize encapsulated Note-on part when forcing KM-suorce to MIDI input port of VSTi;
   2.3 - peripheral equipments - will not recognize this message in any case.

Сonclusion:

1. MIDI "Note-on" message from KM source is only executed within MacOS (DAW or SA VSTi) unless MIDI input is forced disabled in MIDI-inviroment settings, or AUi/VSTi channels are inconsistent

2. A MIDI "Note-on" message encapsulated in SysEx and sent from the KM - only Stand Alone VSTi that are preset to the KM source are recognized. in other cases - the message is ignored! which is to be expected, according to the theoretical description of the MIDI implementation chart.

3. At this time the Keyboard Maestro cannot and doesn't have the ability to send the required MIDI messages to certain/expected peripheral equipment without "crutches" software-intermediaries! Including as feedback to MCU-emulation controllers.