MIDI Trigger: Channel Aftertouch
The Channel Aftertouch trigger is a MIDI-based input. It detects when a MIDI Channel Aftertouch message is received from the specified MIDI device.
Channel Aftertouch messages are transmitted after a note has been pressed. It sends the average pressure data of all keys currently held down on a specified MIDI channel. As apposed to Poly Aftertouch which transmits the pressure data of each individual note being held down on a specified MIDI channel.
Trigger Inputs
Channel
The MIDI channel of the MIDI Channel 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)
Pressure
The Pressure of the MIDI Channel 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.