Is there a system-wide sound equalizer in Ubuntu?

Asked by Marcus Granado on 2007-10-13

I'm wondering if there's a system-wide sound equalizer in Ubuntu.

The ones available, e.g. in Amarok, are restricted to the application's sound output only. Having a system-wide wound equalizer would facilitate enormously for instance if I changed my sound profile from laptop to headphone or to my home sound system, or if I just wanted to boost the frequencies around 300hz and dampen those around 15khz. Alsa's ladspa plugin framework provides raw programming support for an equalizer, but I can't find any Ubuntu-provided equalizer plugin for it, let alone a simple-to-use GUI. Is there one?

If not, may I suggest you to provide one? Which project in Ubuntu would be responsible for this implementation? A system-wide equalizer seems to be a recurrent request, see e.g.

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Adam Crosby (adam-uptill3) said : #1

You can check out pulseaudio ( for a potential solution.

klap-in (klap-in) said : #2

This forumthread explains how you can use pulseaudio. It sets up an equalizer that you may configure by a configfile. So no nice GUI.

Debabrata Sarkar (talktodebu) said : #3

Hey..can any body help me ?
1) I'm unable to play any DAT there any media player or codec available that could solve my problem ?
2) is there any utility to enhance the sound effects in audio systems of ubuntu ?

Thanx in advance..

For a graphic 15-bands system-wide equalizer for Ubuntu working with pulseaudio see:

This is not a highly professional one but it does the job until experts provide us with a built-in one.


Rick Miller (69rixter) said : #5

Thanx and kudos to those who offeedr their advice/help. I do plan to install the 'pulseaudio" graphic equalizer. However, I inadvertently sovled my problem....somewhat. I installed and upgraded VLC mediaplayer and it has a built-in equalizer. It's not the greatest, but will get me through, for right now. I had the pulseaudio equalizer before I wiped my drive and installed 12.04. It was exactly what I wanted.

Can you help with this problem?

Provide an answer of your own, or ask Marcus Granado for more information if necessary.

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