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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 eect.
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 aected.
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
and operation values on page 818.