During a traditional DJ mixing session we need to be able to keep an even volume level during a transition and also keep a good spectral balance by utilizing EQ. I am going to show you a quick method of setting up a set in Ableton Live to achieve just that using sidechain compression.
We will be also utilizing the EQ3 device to split the signal between low and mid-high frequencies. As you will see, the technique described here is quite straightforward and can also be applied to other sequencing software. Source files included were made in Ableton Live 8.0.9.