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Virtual MIDI Keyboard in Ubuntu
By admin | October 4, 2009
On Windows, you could find many freeware virtual piano software. But on Linux, you have no such easy setup or such choice. There are two major pieces virtual piano software – they are Virtual Keyboard and Virtual MIDI Piano Keyboard.
Virtual Keyboard
Virtual MIDI Piano Keyboard
You should be sure you have your sound card proper set before you start this – i.e. make sure you can play a file in Totem or something.
To install Virtual Keyboard:
sudo apt-get install vkeybd
To install Virtual MIDI Piano Keyboard (download vmpk.deb to /tmp first):
sudo dpkg --install /tmp/vmpk.deb
After you have chosen one (or both) of the above, install the remaining dependencies:
sudo apt-get install qjackctl zynaddsubfx
After you have installed everything, run the following and restart your computer:
sudo su -c 'echo @audio - rtprio 99 >> /etc/security/limits.conf' sudo su -c 'echo @audio - memlock 250000 >> /etc/security/limits.conf' sudo su -c 'echo @audio - nice -10 >> /etc/security/limits.conf'
After restarting, open the JACK control center (Applications >> Sound & Video >> JACK Control), and start the JACK server. Once it is started, click the Connect button at the lower left corner. Start ZynAddSubFx and Virtual Keyboard/Virtual MIDI Piano Keyboard and go back to the JACK control center, select Connect, then the ALSA tab. Connect the Virtual Keyboard/VMPK on the left to your sound card and the ZynAddSubFx. Connect your sound card on the left to the right. The result should look something like this:
JACK audio connecitons
After that is complete, go back to Virtual Keyboard/Virtual MIDI Piano Keyboard and click on a few piano keys. Enjoy!
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Topics: Linux | 17 Comments »
October 25th, 2009 at 19:10
Ubuntu package of latest VMPK is now available in the following ppa: https://launchpad.net/~motin/+archive/ppa
January 15th, 2010 at 18:00
hi i cant set up jack control
i have ubuntu 9.10 and i installed the audio package of ubuntu studio.
can you help me?
no email please
January 18th, 2010 at 05:24
To make it work under 9.10, in the setup of Jack control, unselect the Realtime option (unless you installed a realtime kernel). Also add yourself to the group audio if not already done.
Se6.
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April 28th, 2025 at 03:56
Having trouble connecting audio in JACK? I used to! The key for me was meticulously following connection instructions, ensuring the virtual keyboard output was linked to both the synthesizer and sound card inputs within the JACK Connect window, then sound card output connected to the left. Don’t forget the ZynAddSubFx connection! Remember playing Pacman 30th Anniversary edition?
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