Getting sound from vkeyboard

Post by **nathan** » Mon Aug 04, 2008 4:51 pm

Is anybody using vkeyboard? I'm running under Ubuntu Studio, but I can't get any sound from the app. Does it need jack running, or qsynth, or what?

Let me know what you're using it for.

Post by **khz** » Mon Aug 04, 2008 7:25 pm

did u mean vkeybd (vkeyboard)? then - Virtual MIDI Keyboard - jack > connect > synth

studio32 · Post by **studio32** » Mon Aug 04, 2008 7:37 pm

Ah our site admin. has finaly some time to learn making music on linux himself

Easiest way is probably to start qjackctl, zynaddsubfx and vkeybd and then connect vkeyb in the ALSA tab to zynaddsubfx and zynaddsubfx in the audio tab to system playback offcourse. If you don't have an midi supported audio card you may probably need timidity...

Post by **nathan** » Mon Aug 04, 2008 9:06 pm

Cool! Really looking forward to playing with this.

Post by **nathan** » Mon Aug 04, 2008 9:11 pm

I noticed that with vkeybooard I can only play 3 notes at a time. Any way around this? I'd like to be able to play more.

studio32 · Post by **studio32** » Mon Aug 04, 2008 9:28 pm

Why can't you play more?

disruption, take a look a one of the last messages in this topic:

http://linuxmusicians.com/viewtopic.php?t=210

You've also jackkeyboard btw

http://pin.if.uz.zgora.pl/~trasz/jack-keyboard/

It works with jack-midi instead of alsa-midi...

but you have a2jmidid
http://home.gna.org/a2jmidid/

Post by **nathan** » Mon Aug 04, 2008 9:42 pm

It's not distortion. When I press 4 or more keys, it just won't play! with when i lift up one key, and leave 3 depressed, it works! It may be my wireless, keyboard, but it just seems strange. I'm checking into jack-keyboard as well. Anyone know of a debian package for it?

studio32 · Post by **studio32** » Mon Aug 04, 2008 10:02 pm

http://brummer.de.hm/

try it with qsynth (load a soundfont!) too...

Post by **nathan** » Mon Aug 04, 2008 10:38 pm

When starting jack-keyboard, I get the following error:

Code: Select all

Created project project-1 in directory /home/nathan/audio-projects/project-1
Added client ef880ea5-7aaf-4c13-af8b-d8e06f96c823 of class jack-keyboard to project project-1
lash_init: Not attempting to start daemon server automatically
Only external clients need attach port segments
Client ef880ea5-7aaf-4c13-af8b-d8e06f96c823 removed from project project-1
Project project-1 removed
Aborted

Any ideas as to what that means?

studio32 · Post by **studio32** » Tue Aug 05, 2008 8:28 am

That sounds to me like a lash issue. Do you use lash?

You could try to install it or (not) use it...

brummer · Post by **brummer** » Tue Aug 05, 2008 9:02 am

yes, it is lash, you need it for jack-keyboard. But note, the jack-keyboard version on my site use german keyset as default,
cant remember witch one is it, you need to start it with QWERTY or QWERTZ to get amerikan keyset

brummer

studio32 · Post by **studio32** » Tue Aug 05, 2008 9:58 pm

I can make jackkeyboard with a2jmidid run with zynaddsubfx but not with qsynth? Isn't that possible? How should i connect it?

brummer · Post by **brummer** » Wed Aug 06, 2008 5:17 am

I dont understand ?

witch version of jack do you use ?
I never use a2jmidid, all my alsa ports are aviable in connect_midi widget from jack under the system menu. The only differez is that thei get names like midi_playback_7 midi_playback_8 and so on. I rename all my ports in that widget and thei are now aviable with there alsa-names. This renaming is statik. So I dont understand how you can have a problem to connect ports here. jack-0.109.2 comes with that bridge included, I use jack-0.112.1.
You only need to figure out witch portin jack_midi_system is witch port in jack_alsa and rename them one time. After set it will be the same rotine to connect ports like in the alsa-widget.

@nathan
I can play 4 notes at one time. Yes that is hardwaredepent, no limit in the software.

regards brummer

studio32 · Post by **studio32** » Wed Aug 06, 2008 8:12 am

I don't have midi connections unther Audio > system ...
I use the latest jackd version.

I've a maudio audiophile 2496

There a two types of midi: jack midi and alsa midi. Jackkeyboard works with jack-midi so you can't connect it to alsamidi, unless you use a2jmidid.... that's what they told me...

edit: ok, when midi drive enabled in settings I have the midi connections. But I think the problem wit jack-midi > alsa-midi is still there.. I can connect zynaddsubfx but not qsynth...

brummer · Post by **brummer** » Wed Aug 06, 2008 8:43 am

again, I cant understand that, I can easy connect port's no mather if they are jack_midi or alsa_seq ports, they are all aviable under jack_midi, not in alsa, that is thrue.
Look in the midi_connect widget (not alsa) from qjackctl, and open the little (+) befor the entry "system". There you can find ALL ALSA MIDI PORTS on your system, no mater if the are hard or software ports. What I point out is the confusion with the names of this ports, you have to figure out witch one is qsynth, for example, it will have a name like "system:midiout_8 or like that.
Be sure, I can connect jack_keyboard to qsynth in the midi_connect widget, no prob. without a2jmidid.

brummer