Another excellent app arrives from Mr Kerns, maker of midiSTEPs, midiLFOs and more. Along comes midiFILTr-PG Probability Gate MIDI Effect. Here’s all you need to know …

midiFILTr-PG is a Probability Gate MIDI effect designed for Audiobus 3 but also usable with CoreMIDI. midiFILTr-PG listens to MIDI input and based on random chance mutes some of the incoming notes to make a busy, repetitive stream of notes a little more interesting and sparser. It has four modes:

Gate Mode – One set percentage to be muted for all notes. Also includes Gate On Repeats (when a note passes through unmuted, also pass through X more notes after) and Gate Off Repeats (when a note does not pass through the gate, also mute the next X notes) to make things a little more interesting.

Note Mode – Each note in the scale (C, C#, D etc) has its own percentage chance to mute incoming notes.

Sequencer Mode – Every eight notes has a different percentage chance to be muted. Can also change the sequence length to be less than eight.

Thru Mode – Nothing is muted, normally not used but there if you need it.
If midiFILTr-PG is inserted as an Audiobus 3 MIDI effect it should be setup and work automatically. If you wish to use it without Audiobus you can toggle the CoreMIDI input and output and use it that way.

midiFILTr-PG Probability Gate MIDI Effect is on the app store for $2.99 now:

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