Ubuntu Studio & Qsampler

[Asmo Koskinen]

holotone at gmail.com kirjoitti:
> From my understanding, Ubuntu Studio includes the realtime kernel

Simple question - have you installed rt-kernel?

asmok at ubuntu:~$ uname -a
Linux ubuntu 2.6.22-14-rt #1 SMP PREEMPT RT Mon Oct 15 01:05:51 GMT 2007 
i686 GNU/Linux
asmok at ubuntu:~$

asmok at ubuntu:~$ apt-cache search linux-rt
linux-image-2.6.22-14-rt - Linux kernel image for version 2.6.22 on RT 
kernel
linux-rt - Complete Linux kernel on realtime kernel
asmok at ubuntu:~$

If yes, then there is few steps to left.

1. Add snd-seq to /etc/modules

2. Add dev.rtc.max-user-freq=1024  to /etc/sysctl.conf

3. Add @audio - nice -10 to /etc/security/limits.conf

4. Add new mount point - sudo mkdir /mnt/ramfs

5. Add new lines to /etc/fstab:

none            /tmp/jack       tmpfs   defaults        0       0
none            /mnt/ramfs      tmpfs   defaults        0       0

6. Reboot your machine.

You do not understand finnish language (I think), but you understand 
screenshots:

http://wiki.ubuntu-fi.org/Ubuntu_Studio#head-9b23d1fc929cbe800a10e9a24e7747e16b04ba26

7. You need sound fonts for Qsynth (I have M-Audio keystation 49e for 
Jackd, Qsynth and Rosegarden):

http://www.arkki.info/howto/Ubuntu_Studio/FluidR3%20GM.SF2.tar.gz
http://www.arkki.info/howto/Ubuntu_Studio/PC51f.sf2.tar.gz

Best Regards Asmo Koskinen.