MIDEX-8
English – 16
What is OMS?
The Open MIDI System (OMS) was co-developed by Opcode Systems
Inc. and Steinberg. This system extension closes the gap between MIDI
applications and MIDI hardware on the Mac. In addition, OMS lets sev-
eral MIDI applications communicate with each other and share re-
sources (like patch names and timing information).
OMS Version
❐
To be able to use MIDEX-8, you must have installed and activated OMS
version 2.3.8 or higher on your computer. Older OMS versions do not suf-
ficiently support USB interfaces.
Please proceed as follows to find out whether OMS is installed on your
computer:
1. Open the System Extensions folder in your System folder. If OMS is already
installed on your computer, the “OMS” System Extension must be present
in this folder.
The OMS System Extension icon
2. To find out which version it is, click once on the “OMS” system extension
so that the icon is inverted. Now select “Information” on the Apple desk-
top File menu. A dialog appears containing the desired information.
❐
If the most recent OMS version is installed on your computer, you can skip
the section “Installing or Updating OMS” on page 17 and proceed with in-
stalling the driver software as described in the section “Installing the
MIDEX-8 Driver Software” on page 18.