Apple Logic Express 7 - Manual (Page 222)

222 Chapter 6 Logic’s Mixing Facilities
Extended GM, GS, and XG Functions
In addition to the GM Standard, there are extended standards created by Roland (GS)
and Yamaha (XG).
GS and XG mode allow you to select different effect programs, and to control
the level of the reverb and chorus effects.
1 Click-hold the GM field on the right side of the Mixer window. A pull-down menu
appears.
2 Select the extended standard (GS or XG). Depending on your selection, the controllers
for the extended effects will appear.
3 Select the desired reverb or chorus effect from the pull-down menu.
4 Program the desired reverb or delay time (Time parameter), by using the mouse as a
slider.
Reset Button
The Reset button transmits a GS On or XG On command, and resets all controllers to
neutral positions. This allows you to reset all connected sound modules to their
standard settings, and begin a mix from scratch. The Reset button is only available in
the Environment GM Mixer.
Controls
The Track Mixer > View > MIDI Track Components menu allows you to switch the display
of the different MIDI Channel Strip controls on or off.
Bank
If your sound source “understands” bank select events, you can choose the bank
number for each of the 16 MIDI channels. Please remember that not all synthesizers
support bank select events. You can use several different bank select formats (see
“Defining Custom Bank Selects” on page 169).
Program
The Program pull-down menu is used to select a sound by name. Each channel has its
own pull-down menu. The top row selects programs for odd-numbered MIDI channels
(1, 3, 5 … 15), and the bottom row is used for even-numbered channels (2, 4 … 16).
To select the sound for a MIDI channel:
1 Click-hold the sound name.
2 A pull-down menu opens, containing all GM sound names.
3 Select a sound from the menu, and release the mouse button. Logic selects the sound
in the sound module.
Volume
You can use the volume fader to control the level of each individual channel. Controller
7 is sent.