When connected to Logic Pro via USB with the XR18/X18 you can send MIDI data from Logic to control parameters of the mixer in accordance to the MIDI implementation.
This is a handy feature if you are playing live to backing tracks you can use MIDI messages from Logic to keep your performance dynamic without needing to be hands on with the App. In this knowledge base article we will look specifically at using Program Change messages from Logic to automatically load snapshots. First we will show the settings required on the X Air Mixer.
Firstly in the SETUP screen under the Audio/MIDI tab make sure that USB RX is enabled as shown below:
Secondly, of course we need some snapshots to load, the snapshot menu is accessed by clicking on the camera icon when connected to your mixer: I have created some simple Snapshots of fader movements for demonstration purposes. For more information on Snapshot management please see page 23 of the user manual:
Now the X Air is set to receive MIDI over USB and we have some snapshots ready to load we can look into our Logic project. We will first need to create a New Track. This needs to be 'An external MIDI or USB Device' and output to the 'X18 XR18 - 1' as shown below:
Now we need to create a MIDI region for this track using the pencil tool and open the MIDI event editor (red square shown below):
Now we can take a closer look at using the MIDI Event window to send our control messages.
First use the drop down next to the + symbol is set to Program change. Then click on the + to add a program change event to the list. There are 2 ways to set the position/time of the Program change you can move the Scrub along the arrange Window, clicking + will set the event to the position of the Scrub or you can enter beats/bars positions manually into the 'Position' column on the left of the Arrange Window. You can see the event is shown in the MIDI region according to the position value in the MIDI event Window.
There are 64 snapshots in the X Air mix and program change no. 1-64 directly relate to them. i.e. program change 23 will load snapshot 23. This is controlled in the 'Val' column in the MIDI event window as you can see in the example above I have mine set to 1 then 2 then 3 then 4. When I hit play on my Logic File the snapshots are loaded in order according to their positions on the timeline.
|Product Category||Digital Mixers|
|Model Name||X Air|
|Keywords||X Air, XR18, X18, Logic, MIDI, Program Change, Snapshot|