The world of music production would not be the same without the continually evolving art of equalizing. In the next tutorial, we will cover an audio plugin with a different approach to audio content equalizing.


Let’s start


As usual, we will start by opening a new project in our SoundBridge: DAW and apply this piece of audio processor across a couple of audio sources while introducing you to its interface and possibilities.



Gulfoss by Soundtheory


The name of the plugin is Gullfoss, and it is developed by Soundtheory. It is basically an instant balancer. It gives clarity, definition, and it even gives depth and cohesion to sound. The beautiful thing about this plugin is that it does all that automatically. Of course, you will be tweaking a few knobs, but the system is going to balance the frequencies by itself.

Talking about the way it works, we can say that the plugin figures out which elements of the frequency spectrum are competing for the attention of the human brain. It uses really advance and sophisticated technology of which you can find more in the manual. In this plugin, there are only five main parameters which you can adjust. Those are Recover, Tame, Bias, Brighten, and Boost.



Main Parameters


  • Recover – Finds out which parts of the frequency spectrum are masked and it brings those parts out
  • Tame – Brings down the parts of the frequency spectrum that are too prominent

If we try to explain it in more simple matter what those two parameters are doing, we would say that Recover is going to add to the sound and Tame is going to take away from the sound. Consequently, depending on what that particular sound needs, you might need to lean more towards one or the other. In most cases, you will need a little bit of both.

  • Bias – Whether Gullfoss prefers to recover or tame in borderline cases is controlled by Bias. Positive values set a preference towards recovering, whereas negative values bias toward taming
  • Brighten – eighter brightens or darkens the sound
  • Boost – Is doing more-less the same thing as Brightness but for the Low-End

Other than main controls, Gullfoss has standard controls for Bypass and Gain, followed by selecting the specific frequency range on which you want to apply the process. This range can ve set by dragging the red lines which can be seen in far left and right of the interface.


Audio example


For the sake of this tutorial, we have chosen to apply Gullfoss on the master channel, but it is equally applicable to any single instrument. Let us hear the difference between unprocessed and sequence processed with Gullfoss.


~Full Mix – Unprocessed  

~Full Mix – Processed with Gullfoss


Download the project here.