[LAD] MIDI in jack

Len Ovens len at ovenwerks.net
Sun Jul 6 16:44:57 UTC 2014

On Sun, 6 Jul 2014, Brett McCoy wrote:

> You might want to take a look at some previous implementations of
> similar ideas (using console keyboard for MIDI). They use the ALSA
> sequencer, I believe
> http://vmpk.sourceforge.net/
> http://alsa.opensrc.org/Vkeybd

Some of that code will be useful, but both of these run in user space and 
use the Xorg keyboard inputs. This means that if I have a synth connected 
to virtual kb, as soon as I try to change the synth patch, I loose my 
virtual keyboard access because keyboard follows focus to the synth 
application (which is what we want almost always). That is why I have to 
run as a system user.

Len Ovens

More information about the Linux-audio-dev mailing list