Building a MIDI keytar

[granddad]

So what are his 'breaths' controlling, I'm guessing MiDi pitch, perhaps velocity as well , and his left hand ?

 

[wkrug]

So what are his 'breaths' controlling, I'm guessing MiDi pitch, perhaps velocity as well , and his left hand ?

There is a specified controller called "breath controller" in MiDi specification.
Possibly he used that one?

 

[MichaelaJoy]

Take a look here.
https://www.tecontrol.se/products/usb-midi-breath-controller/breath-controller-facts

You can purchase a breath controller and retrofit it to a wind instrument.

They did all of the heavy lifting for you, in that they calibrated the pressure sensor and provided an interface.

Check this out:
https://mitxela.com/projects/breath_controller

And here's the pressure sensor.
https://www.mouser.com/ProductDetail/NXP-Freescale/MPXV4006DP?qs=N2XN0KY4UWU/MaGWz5cTWg==

Definitely worth playing around with.

 

[wkrug]

What's about Your keytar - Does it work yet?