When listening to the music sometimes you want to tweak the sound output, so that the sound can be more pleasing to listen. Therefore we need a sound enhancer or sound equalizer, so how to install sound equalizer on ubuntu? read this article.
If you need an audio/sound equalizer on ubuntu, the best program is probably 'pulse audio equalizer', with this program you can control the audio output on your computer, on ubuntu 14.04 'pulse audio equalizer' is not available on the default repository.
You can install pulse audio equalizer through PPA repository, here's how to install pulse audio equalizer that works on ubuntu 14.04:
Using pulse audio equalizer, you can adjust the sound manually or choose one of the preset provided by pulse audio equalizer such as 'Classical', 'Club', 'Dance', 'Full Bass', 'Full Bass & Treble', 'Pop', 'Rock', etc.