Apple Logic Pro X User Manual
Page 798
Chapter 23
Work in the Environment
798
Meta event faders
Meta faders generate special meta events, which are used to control certain Logic Pro functions,
but have no MIDI meaning, and are never sent to the MIDI output.
In some cases—Go to Screenset, Go to Project, and so on—you don’t need to cable meta
faders into another object for them to work. You can use cabling to process meta events in the
Environment, and alter their effect.
However in the majority of cases—Set fader range minimum, Bang!, Set transformer operation
minimum, and so on—the meta fader must be cabled to the object being affected.
The following is a summary of the currently implemented meta events that can be generated by
faders:
Meta event
Controlled function
46
Assign Alias
49
Go to Screenset
50
Go to Project
51
Go to Marker
52
Stop Playback
96
Set fader range minimum
97
Set fader range maximum
98
Set the fader value without sending
99
Bang! Causes the fader to resend its current value.
The bang data value can be used to make the
fader increment-without-rollover (127), decrement-
without-rollover (125), increment-with-rollover (123)
or decrement-with-rollover (121). Use values one less
than those shown to have the bang passed through
to all connected faders.
100
Tempo Control
122
Set transformer map value for the currently selected
map position
123
Select transformer map position
124
Set transformer condition maximum (bottom)
parameter, if any. (This applies to all conditions not set
to All.)
125
Set transformer condition minimum (top) parameter,
if any. (This applies to all conditions not set to All.)
126
Set transformer operation maximum (bottom)
parameter, if any. (This applies to all operations not set
to Thru.)
127
Set transformer operation minimum (top) parameter,
if any. (This applies to all operations not set to Thru.)
For more information about meta events 122 to 127, see
Use meta events to control condition
on page 818.