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 and operation values.