[LAU] Touchpad to MIDI
lorenzofsutton at gmail.com
Tue Jul 27 10:03:33 CEST 2021
On 27/07/21 09:22, Will Godfrey wrote:
> Does anyone know of software that can generate MIDI messages from a touchpad?
If, as I understand it, you mean a latptop touchpad (i.e. thing used
instead of a real mouse with your finger :-) ) Pure Data can definitely
do it in many different ways.
The Pd 'vanilla' way would probably be using a canvas object(s) and
tracking movement as you 'drag' them around.
There are a bunch of Pd externals (i.e. libraries not included in Pd you
need to compile and install separately), which can also do this in
various ways. 
Once you have the touchpad detection / setting setup Pd has a set of
inclued midi sending obejects which are really easy to use to send CC,
> The idea would be to send CCs to a sequencer or soft synth, but being able to
> send it to an external hardware device would also be very useful.
MIDI objects receive/send alsa-midi so you can route them to any
sequencer, synth or hardware device which can receive alsa-midi.
Hope this helps.
 There is also a Pd 'distribution' which comes packed with many many
externals out of the box, Purr Data: https://www.purrdata.net/
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