Re: [ubuntu-studio-users] EQ with JACK

[Ralf Mardorf]

On Fri, 01 Dec 2017 14:52:04 -0500, Thomas Pfundt wrote:
>I don't see an option to set an EQ in there, am I missing something?  

I can't comment on the usability of such a plugin in combination with
jack, however, here is a screenshot:
http://xwmw.org/qastools/applications/qasmixer_gallery/screen_06.html

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Re: [ubuntu-studio-users] EQ with JACK

[Thomas Pfundt]

Hi Mauro,

> Have you looked into qasmixer already?

No, thanks for the suggestion, but I don't see an option to set an EQ in there, 
am I missing something?-- 
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Re: [ubuntu-studio-users] EQ with JACK

[Mauro Fernandes]

Have you looked into qasmixer already?

On 1 Dec 2017 13:12, "Thomas Pfundt"  wrote:

> Hi Ralf,
>
> thank you for your reply. Using Ubuntu Studio 16.04 currently, but I am
> planning to do a full re-install & system upgrade to 17.10 around
> Christmas/New Year soon, so I'll probably reconfigure my setup then.
>
> I don't use jackdbus, currently. I can get JACK and either Calf and/or
> JackRack started simultaneously while using the startup-script options in
> qjackctl and set all necessary connections in the patchbay, but my issue is
> basically that the plugin-windows need to stay open constantly and
> accidentally closing one will result in errors with the preset connections
> and I'll have to restart it. This has happened to me a few times already,
> as I'm used to close all unnecessary windows and keep my workspace clean.
>
> Also, I don't like the fact very much of having full-blown plugin hosts
> open constantly when all I need is one single parametric EQ to flatten my
> room acoustics, which is around 0,1% of the functionality.
>
> I thought that maybe there was an alternative to this that can be used
> with JACK. Maybe a dedicated EQ that can be set once and then moved to the
> systray or just runs quietly in the background? I haven't found anything
> yet, unfortunately. I read somewhere that there also is an option to enter
> EQ-frequencies into ALSA somehow, but I can't find anything on that for the
> life of me, either. I also don't know specifically what to search for.
>
> Since EQ is rather essential when seriously trying mix and master audio, I
> thought I'd ask around how you guys manage that. Maybe I haven't thought of
> something yet, but my current solution is not very practical.
>
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Re: [ubuntu-studio-users] EQ with JACK

[Thomas Pfundt]

Hi Ralf,

thank you for your reply. Using Ubuntu Studio 16.04 currently, but I am 
planning to do a full re-install & system upgrade to 17.10 around Christmas/New 
Year soon, so I'll probably reconfigure my setup then.

I don't use jackdbus, currently. I can get JACK and either Calf and/or JackRack 
started simultaneously while using the startup-script options in qjackctl and 
set all necessary connections in the patchbay, but my issue is basically that 
the plugin-windows need to stay open constantly and accidentally closing one 
will result in errors with the preset connections and I'll have to restart it. 
This has happened to me a few times already, as I'm used to close all 
unnecessary windows and keep my workspace clean.

Also, I don't like the fact very much of having full-blown plugin hosts open 
constantly when all I need is one single parametric EQ to flatten my room 
acoustics, which is around 0,1% of the functionality.

I thought that maybe there was an alternative to this that can be used with 
JACK. Maybe a dedicated EQ that can be set once and then moved to the systray 
or just runs quietly in the background? I haven't found anything yet, 
unfortunately. I read somewhere that there also is an option to enter 
EQ-frequencies into ALSA somehow, but I can't find anything on that for the 
life of me, either. I also don't know specifically what to search for.

Since EQ is rather essential when seriously trying mix and master audio, I 
thought I'd ask around how you guys manage that. Maybe I haven't thought of 
something yet, but my current solution is not very practical.-- 
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Re: [ubuntu-studio-users] EQ with JACK

[Ralf Mardorf]

On Wed, 29 Nov 2017 15:45:22 -0500, Thomas Pfundt wrote:
>Is there anything similar that can be used with JACK?

No, jack is a sound server for professional purpose, it is not a plugin
host. You could start jackd by a script and automatically start
https://packages.ubuntu.com/artful/jack-rack , too, with the desired
plugin and its desired settings. Let the script restore connections by
using https://packages.ubuntu.com/artful/aj-snapshot . That's not the
only solution to your problem, but it's cumbersome to mention
alternatives, while you even didn't mention what Ubuntu release you are
using, or if you are using jackdbus. Btw. when using a GUI you indeed
need to keep the Window open, so jack-rack isn't an alternative to
calf. If you don't want a GUI, use an audio host without a GUI. Audio
apps without GUI aren't my domain, but if you want to place a GUI app to
what ever desktop and/or minimised it by any size at any position, you
could use https://packages.ubuntu.com/artful/xdotool and
https://packages.ubuntu.com/artful/wmctrl by the script to achieve this.

You could replace jackd by a wrapper, to run the script as jackd instead
of directly running jackd.

dpkg-divert --add --rename --divert /usr/bin/jackd.real /usr/bin/jackd

The above command would move /usr/bin/jackd to /usr/bin/jackd.real ,
even if you would upgrade the jackd package, it wouldn't change. You
could call the script jackd and let the script start jackd.real.
Perhaps Ubuntu Studio does something similar already, so first check if
it isn't already done.

Regards,
Ralf

-- 
$ pacman -Q linux{,-rt{,-cornflower,-pussytoes}}|awk '{print $2}'
4.14-2
4.13.13_rt5-1
4.11.12_rt16-1
4.14_rt1-1

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