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midi-filter

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MIDI Filter

Unify's built-in MIDI Filter effect does what its name implies: filters incoming MIDI events, in order to:

  • select only events matching certain criteria,
  • filter out specific events, or
  • modify certain event-sequences.

Input filtering: Channel and Note-range

The Channel and Range section allows you to select only events on a specific MIDI channel, and/or note-events in a specific range. The controls in this section work the same as their counterparts on each MIDI and INST layer in the layer-stack view.

Channel and pitch modification: Modify

The Modify section

Sustain Pedal functions

There are four options for Sustain Pedal (CC#64) events:

  1. Pass Thru: allow CC#64 events to pass through unaffected
  2. Suppress: filter CC#64 events out of the MIDI stream entirely
  3. Emulate: suppress CC#64 events, but interpret them so note-off events are delayed until pedal-up
  4. Em + Latch: like Emulate, but sustain pedal toggles note latching on/off

The first two options are self-explanatory, but Emulate and Em + Latch require a bit of explanation.

Emulate mode is useful for plug-ins which either ignore MIDI CC#64 events entirely, or don't handle them properly. (Unfortunately, there are quite a few plug-ins like this, including the BlueARP arpeggiator, and literally hundreds of free VSTi's) In Emulate mode, MIDI note-off events are suppressed while the Sustain pedal is down, and sent all at once when the pedal is released. Hence notes are held (sustained) while the pedal is down, just as you would expect if the downstream plug-in was interpreting CC#64 itself.

Em + Latch (emulate with latch) mode is basically the same as Emulate mode, except that you don't have to hold the sustain pedal down. Instead, you press and release the pedal once to activate sustain (the letters “SUS” will appear in green text next to the menu), and a second time to de-activate it.

Pitch Bend filtering

Use the Suppress PB checkbox to filter Pitch Bend events out of the MIDI stream.

This is useful when you would like only some instrument layers to respond to Pitch Bend.

Mod Wheel filtering

Use the Suppress MW checkbox to filter Mod Wheel (CC#1) events out of the MIDI stream.

This is useful when you would like only some instrument layers to respond to CC#1.

midi-filter.1605447674.txt.gz · Last modified: 2023/05/08 18:59 (external edit)