Setup IAC Driver Bus

Apple's Audio MIDI Setup app allows you to create virtual MIDI ports between applications.

1. 1

   Open Audio MIDI Setup

   Applications > Utilities > Open Audio MIDI Setup.

   
2. 2

   Window > Show MIDI Studio ( ⌘2 )

   
3. 3

   Double-click 'IAC Driver'

   
4. 4

   Check 'Device is Online'

   
5. 5

   Ports > Press (+) to add a port.

   
6. 6

   Click 'Apply'

   

Now we have created a virtual MIDI device to send/recieve MIDI messages.

See the Audio MIDI Setup User Guide for more info.

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To send MIDI via a virtual MIDI port, download loopMIDI developed by Tobias Erichsen.

1. 1

   Download LoopMIDI

   Click here to download loopMIDI by Tobias Erichsen.

   
2. 2

   Install loopMIDI

   Click here to download loopMIDI by Tobias Erichsen.

   
3. 3

   Create a MIDI Port

   For this example, we will name it IAC Driver Bus 1

   
4. 4

   Press (+) to add the port

   
5. 5

   Setup Complete

   Now you have a MIDI bus to communicate between applications.

   

See the loopMIDI website for more info.

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1. 1

   Open Main Menu ( ⌘, )

   
2. 2

   Click Settings

   
3. 3

   Open MIDI Settings

   
4. 4

   Set MIDI Input to IAC Driver Bus