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Yes, the message format of polyphonic aftertouch is similar to that of a note on event (= note # + pressure). Channel aftertouch includes only the pressure. I
by colanderman 14y ago
Yes, the message format of polyphonic aftertouch is similar to that of a note on event (= note # + pressure). Channel aftertouch includes only the pressure.
In case you're interested, I e-mailed to the address on your GitHub a copy of the message formats from the MIDI spec. I don't know where I found it (it's not freely available) or else I'd have linked it.
- smosher 14y agoThanks, that may come in handy.
- unwind 14y agoThis page: http://www.srm.com/qtma/davidsmidispec.html http://www.srm.com/qtma/davidsmidispec.html (which is quite obviously highly unofficial) mentions both 0xAx and 0xDx, calling them "Key Pressure" and "Channel Pressure", respectively. The explanation says: Some keyboards can detect a change in pressure on each key, while they are held by the player; these keyboards can report "key pressure" over MIDI. Some keyboards may sense the overall pressure on the device, such as with a weight sensor beneath the entire keyboard. These devices can report "channel pressure." Sounds pretty nice.