MIDI Trigger: Poly Aftertouch

The Poly Aftertouch trigger is a MIDI-based input. It detects when a MIDI Poly Aftertouch message is received from the specified MIDI device.

Poly Aftertouch messages are transmitted after a note has been activated. It sends pressure data when pressing the note harder after it’s been activated, while it’s being held. Aftertouch is usually used for vibrato or modulation.

Polyphonic Aftertouch produces an individual signal or message for each note being played. As opposed to Channel Aftertouch which transmits the average pressure data of any keys that are held down, Channel Aftertouch is independent of which key or how many keys are held down.


Trigger Inputs

Channel

The MIDI channel of the MIDI Poly Aftertouch message.

Type Whole Number (Integer)
Default Fallback 0
Min - Max Value 0 - 15
Required No
Local Variable Yes

The MIDI channel values in Aitum are 0-15. Most MIDI software and hardware define MIDI channel values as 1-16. This is true for the channel values of both Notes and Control Changes.

This means that setting a channel to 0 in Aitum is equal to 1 in most other devices and software’s. The Aitum team intends to change the values internally to be 1-16 in a future update. (Update timeline TBD)

Note

The Note of the MIDI Poly Aftertouch message.

Type Whole Number (Integer)
Default Fallback 0
Min - Max Value 0 - 127
Required No
Local Variable Yes

Velocity

The Velocity or ‘Pressure’ of the MIDI Poly Aftertouch message.

Type Whole Number (Integer)
Default Fallback 0
Min - Max Value 0 - 127
Required No
Local Variable Yes

Hidden Variables

Hidden Variables are available as Local Variables within the actions of a rule, but you will not see these fields visually on the Trigger. These can also be used with a New Rule Check, more info here on Checks.

There are no hidden variables for this trigger type.


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