Input Filter settings are available only when Show Advanced Tools is selected in Advanced preferences.
These settings let you control which event types are filtered.
Notes checkbox: Use to filter out notes from incoming MIDI data.
Program Change checkbox: Use to filter out Program Change messages from incoming MIDI data.
Pitch Bend checkbox: Use to filter out Pitch Bend messages from incoming MIDI data.
Control Changes checkbox: Use to filter out Control Changes messages from incoming MIDI data.
Aftertouch checkbox: Use to filter out Aftertouch messages from incoming MIDI data.
Polyphonic Aftertouch checkbox: Use to filter out Polyphonic Aftertouch messages from incoming MIDI data.
System Exclusive checkbox: Use to filter out program change messages from incoming MIDI data.
For information about the individual checkboxes, see Edit events overview.