10.6

959Logic Pro User Guide
GMmixer objects
GMmixers in the Logic Pro Environment
The GMmixer is a collection of 16 fader modules, configured to emulate a virtual mixing
desk for 16 MIDI channels. Each module includes controls for volume, mute, preset, and
bank, and four assignable knobs (one of which is typically used for pan). There are optional
controls for standard XG and GS effects.
Create a new GMmixer
• In Logic Pro, choose New > GMMixer.
The GMmixer is intended for controlling the 16 channels of a MIDI device which conforms
to the GM, XG, or GS standard. This includes the GMset of 128 program names (with
variation banks for XG or GS), MSB/LSB bank select messages, and standard controller
names (#1 for mod wheel, #2 for breath, #7 for volume, #10 for pan, #11 for expression, and
so on).
GM mixer parameters in the Logic Pro Environment
Most of the GMmixer’s setup is done in the Logic Pro Mixer, but there are also a few
parameters in the GM Mixer’s inspector:
• Port pop-up menu: Sets the GMmixer’s direct MIDI output connection.
• Channel pop-up menu: Determines the channel number of the lowest GMmixer module.
You can use this (coupled with resizing the GMmixer) to create sub-mixers for any
continuous string of MIDI channels (1 to 4, for example).