F-REX can analyze any sound that's being played in real time. The sound is broken down into the three parameters of the plug-in : 'Gain', 'Frequency' and 'Panning'. These allow you to graphically visualize and analyze the sound.

You can control independently the inside and the outside area of a specific part of the track. The plug-in allows you to focus in on it using the panning and frequency controls.

You can apply effects (compressor and reverb) to the inside and outside of the chosen area and adjust the volume and pan intuitively.

These functions allow you to break down songs. F-REX can detect a specific sound in the song, for example a vocal part and minimize its volume. Noise-cancelling can be done as well.

Boosting volume on specific instruments can make them sound clearer and more audible, facilitating learning a song.

F-REX can be used for various purposes and with it you can produce unique remixes.