Input filter settings – Apple Logic Pro 9 User Manual
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• Instrument Without MIDI Thru Function pop-up menu: The instrument selected here will
not pass events through the computer when the instrument is assigned to the selected
arrange track. Normally, you would set the No Output instrument here (chosen by
default).
If your master keyboard does not have a Local Off setting, you can use this feature to
avoid unwanted note doubling when recording:
• With multi-timbral sound sources, assign the instrument (usually channel 1) that
plays the part that is heard when playing with the computer turned off.
• With mono timbral sound sources, assign the instrument that represents the
sound-generating part of your master keyboard.
In either case, you should turn down the volume control of your master keyboard
whenever you are recording tracks for any other instrument.
It is possible to disable MIDI Thru for any MIDI track in the Arrange window, by simply
disabling the Record Enable button beside the track name.
Input Filter Settings
The Input Filter pane is used to screen certain event types at the sequencer input. For
further information on the individual checkboxes, see
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Chapter 43
Project Settings in Logic Pro