I found this in the history of the linux-audio-user@lists.linuxaudio.org list regarding Jack setup:

From: Orcan Ogetbil <oget.fedora@gmail.com>
Date: Sat, 15 May 2010 03:00:49 -0400
Message-ID: <AANLkTilvmzzUEo_VoXnNYSvqH9AsGUiq7prvTHtLoUa-@mail.gmail.com>
To: Rick Green <rtg@aapsc.com>
Cc: linux-audio-user@lists.linuxaudio.org
Subject: Re: [LAU] Fedora 12 & CCRMA

...

Assuming you are using Fedora's jack (see above), please remove the lines you added from limits.conf. Then make sure that your username is in the jackuser group, and in the pulse-rt group (even if you don't use pulse this setting won't hurt).

You can add your user to these groups by manually editing /etc/group and adding your username next to these groups, or by running the system-config-users GUI application and adding the groups to your username.

Then log-out, log back in or reboot. Now you should have a properly running jack.

This information is also in the /usr/share/doc/jack-audio-connection-kit-0.118.0/README.Fedora file.  Check that file out to see if there is anything else you are missing.

...

Hope it helps, if you decide to go with Jack

.ken

On 07/24/2016 06:18 PM, Onyeibo Oku wrote:
I don't how to go about setting up JACK.  I couldn't find a page
dedicated to it within the Fedora community.  All I get from qjackctl
are:

02:15:49.135 JACK was stopped
02:15:51.113 Could not connect to JACK server as client. - Overall
operation failed. - Unable to connect to server. Please check the
messages window for more info.
Cannot connect to server socket err = No such file or directory
Cannot connect to server request channel
jack server is not running or cannot be started



On Sun, 2016-07-24 at 20:10 +0000, Brian Monroe wrote:
Have you tried using Jack at all? If so, can you send us your Jack
settings?

On Sun, Jul 24, 2016, 12:34 PM Onyeibo Oku <twohotis@gmail.com>
wrote:
*BUMP*

Is this list still active?

I've been unsuccessful in different attempts to route playback from
my
soundcard to an output file (preferably WAV format).  I have tried
arecord, sox etc.

Could someone guide me through this process?

Regards
Onyeibo
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