Garten Eden

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Improve your Sound Quality with PulseAudio Equalizer

When it comes to the sound quality of e.g. notebook speakers many users are disappointed. Unlike Windows, Ubuntu Linux does not include an equalizer. But by adding a PPA, you can simply install a 15-band-EQ which can latch onto PulseAudio (thanks to the LADSPA-capability) and modify the dynamics of the sound.

Installation

sudo add-apt-repository ppa:psyke83/ppa
sudo apt-get update
sudo apt-get install pulseaudio-equalizer

(Pre‐)Settings

Combined with presets the autostart-function (Keep Settings) enables you to store your adjustments permanently.

If you are, an owner of the Hercules XPS 2.1 40 Slim sound system, too, you can improve the signal quality significantly with this tool by raising the treble starting at 3.5 kHz (inclined).

Settings of the PulseAudio EQ-Plugin (pulseaudio-equalizer-gtk)

Tip for Bass Aficionados

Slightly raise the area your speakers are barely able to play back and lower the following band a bit (see screenshot).

Package for Maverick

There is no package for the new Ubuntu version in the PPA yet. For this reason just download the package for Lucid and use it instead. Apart from the error described below it works perfectly.

Error in Maverick

If you get an error like cant find gnome-volume-control.svg, it is due to an icon which was renamed in Gnome 2.32. Fix it with:

sudo ln -s /usr/share/icons/hicolor/16x16/apps/multimedia-volume-control.svg /usr/share/icons/hicolor/16x16/apps/gnome-volume-control.svg

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