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thekeymaker
Tux's lil' helper
Tux's lil' helper


Joined: 15 Aug 2010
Posts: 104

PostPosted: Thu Sep 02, 2010 8:18 pm    Post subject: pulseaudio equalizer Reply with quote

Ubuntu has a pulseaudio equalizer shown here:

http://digitizor.com/2010/02/08/how-to-install-system-wide-pulseaudio-equalizer-in-ubuntu-9-10-and-10-04/

Does the package exist for Gentoo???

Or goes anyone know where I can find source code?
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audiodef
Watchman
Watchman


Joined: 06 Jul 2005
Posts: 5191

PostPosted: Fri Sep 03, 2010 3:04 pm    Post subject: Reply with quote

This might be it: http://gitorious.org/pulseaudio-equalizer
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Kompi
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Joined: 05 Oct 2002
Posts: 251
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PostPosted: Fri Sep 03, 2010 4:30 pm    Post subject: Reply with quote

And here are install instructions. It says on that page:
Quote:
The equalizer is available in pulseaudio's master git branch so instead of the git repository below, you may just want to compile from there.

So we may probably see the equalizer in the next pulseaudio release. As well as the GUI pqaeq:
Quote:
pqaeq is included in the pulseaudio source tree under src/utils and will be installed alongside the equalizer module to /usr/bin/qpaeq in most setups automatically.

There is a pulseaudio-9999 git-ebuild in sabayon overlay, if you merge that, you'll get the equalizer:
Code:
layman -a sabayon
echo "media-sound/pulseaudio **" >> /etc/portage/packages.keywords
emerge -av media-sound/pulseaudio

You may have to merge dev-python/PyQt4 (with dbus use flag enabled) as well to run the GUI, as this dep has not been added to the git-ebuild yet:
Code:
emerge -av dev-python/PyQt4

To use the equalizer-module you have to make some modifications to /etc/pulse/default.pa according to http://pulseaudio.org/wiki/SystemEqualizer. add:

Code:
load-module module-equalizer-sink sink_name=equalized master=<alsa_output>
set-default-sink equalized

to the end of default.pa, where <alsa_output> is your alsa-sink. You get the name of your alsa-sink by invocing:
Code:
pacmd list-sinks|grep 'name:'

After changing all that you need to restart pulseaudio, if you had it already running:
Code:
pulseaudio --kill
pulseaudio --start

Look at your syslog for errors.
The "set-default-sink" option did not work for me. Pulseaudio complains that it doesn't know "equalized" sink. "pacmd list-sinks" however shows the sink has been created. The "set_default=true" option as mentioned in the wiki didn't work at all. It prevented the equalized module from loading completely.
However, I was able to swith to equalized as my default sink manually by the pulseaudio mixer (Output-> FFT based equalizer) and it works.
Run the GUI /usr/bin/qpaeq to adjust your equalizer settings.
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thekeymaker
Tux's lil' helper
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Joined: 15 Aug 2010
Posts: 104

PostPosted: Fri Sep 03, 2010 4:41 pm    Post subject: Reply with quote

Cool!

Thanks everyone! I will have to try that out.....

Once I try this I will post back and let everyone know how it worked.

Thanks Again!
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audiodef
Watchman
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Joined: 06 Jul 2005
Posts: 5191

PostPosted: Fri Sep 03, 2010 5:26 pm    Post subject: Reply with quote

I don't use Pulseaudio, but I'm interested in how it turns out, so I'll stay tuned. 8)
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