User guide

262 Chapter 10 Working With Instruments and Effects
3 Click an Insert slot of the channel you want to process with the external effects unit,
and choose Utility > I/O.
4 In the I/O plug-in window, choose both the Output and Input (shown as numbers) that
your effects unit is connected to.
5 Adjust the Input or Output volume as required.
When you start playback, the signal of the audio channel will be processed by the
external effects unit.
Some Tips for Using External Effects
Some audio interfaces feature their own routing software, which you may need to use
to set up the chosen inputs and outputs for this type of use. Please consult the
documentation provided by your audio interface manufacturer.
Most hardware effects units are MIDI controlled. If this is the case with your effects unit,
you can connect its MIDI input and output cables to your MIDI interface. This enables
you to choose effects presets, and may also allow you to remotely control, record, and
automate the parameters of the effects unit from Logic Express.
Using Plug-ins From Other Manufacturers
Logic Express can act as a host for (compliant, correctly installed and authorized) Audio
Unit effect and instrument plug-ins from other manufacturers.
Important: Logic Express can not act as a host for plug-ins in VST or RTAS format.
There are, however, utilities such as the VST to Audio Unit Adapter
(http://www.fxpansion.com), that “wrap” Mac OS X versions of VST plug-ins to create
virtual Audio Units. Once wrapped, most of these plug-ins behave, and can be used,
just like Audio Units.