You may want to set the playhead or activate the cycle area to preview a part of the project requiring special attention for drum replacement. Click Preview again to stop playback, return the playhead to the previous play position, and unsolo the two tracks.
Trigger Note pop-up menu: Set the pitch of the trigger notes created on the software instrument track. Choosing AUTO (the default setting) sets the trigger note as follows:
Kick = C1 (36)
Snare = D1 (38)
Tom = A1 (45)
other = C3 (60) and AUTO menu not available, as there is no automatic choice for this setting.
Note: Any changes to the trigger note do not change the instrument setting. However, any changes to the instrument setting change the trigger note, either to Auto or C3 (60).
Timing Offset slider: Shift the position of trigger notes earlier (negative values) or later (positive values). The offset should normally be set to 0.0 ms (which places the MIDI trigger notes exactly at transient timing positions), but may need to be adjusted when using your own, or third-party, instruments.
“Set average attack time” button: Set the average offset of all regions on the source audio track.
Click OK to confirm the action.
Clicking OK resets the vertical zoom of the original audio track, mutes its regions if you selected the Replacement option, and deselects the track. MIDI trigger notes for the Sampler instrument are created on the software instrument track, and the track is selected.
Download the guides:
Logic Pro User Guide: PDF