Choppy midi audio

Hi to everyone. I'm new to 64 Studio and I find it very nice.
However I've a problem with midi audio using zynaddsubfx or qsynth because with these applications I heard choppy audio.
I've not xruns in Jack. What should I try?
Thanks

I use Freebob drivers, I've

I use Freebob drivers, I've a M-Audio Firewire Solo

I've done all the upgrade

I've done all the upgrade and I've resolved the problem.
Thanks, I really like this distro.

hi minghio

Glad to hear you got sorted.

Freebob drivers M-Audio Firewire Solo

I have no experience of this setup,
but I have been browsing since yesterday to learn a bit.

googled: Freebob drivers M-Audio Firewire Solo
googled: M-Audio Firewire Solo linux

It looks like a nice setup for guitarists.

These are the checks I use to get some information.
(not sure about Firewire)?

$ lspci | grep -i audio

$ cat /proc/asound/modules

$ cat /proc/asound/devices

$ lsmod | grep snd

The last one should show which snd modules are loading at boot.

and this is the first settings I check if I see problems.

edit /etc/security/limits.conf

* gives all users access to sound.

add these lines to the end of the file.

* - rtprio 99
* - nice -10
* - memlock 4000000

As I said at the start this is new to me,
It would be nice to know "how" you fixed the problem.

64studio is amazing.

dave

edit::

Fireware and qjackctl, Click the Setup button.

>> Periods/Buffer
set to 3

>> Driver
freebob (this can be listed as "ffado" in up to date distros)

>> Interface
The first soundcard in your system is called [hw:0].
Select the "correct" hardware from the drop down list.

Ref: Daniel James article linuxformat magazine issue 102.

dave.