While scouring the vastness of the internet for useful audio production content, I've come across this little gem (video below); the way the principle of compression is explained is so applicable and so well structured that you can use it on every compressor out there! It forces you to listen and not only look at the numbers, and that can make all the difference!
To recap, this technique goes like this:
Some compressors feature additional controls to further tailor their sonics, with the most prominent additions being the knee control (usually for digital compressors) and the sidechain filters.
The knee control works in conjunction with the ratio and is perceived as the "hardness" of the compression character. Harder knee means a more sudden onset of the compression and a softer knee setting means a more gradual onset of the compression and consequently a more transparent, "gooey" character.
The sidechain filters allow you to tell the compressor how to react to either the lowest or highest frequencies (or both). The most common application is to high-pass the sidechain signal to make the compressor ignore the otherwise powerful kick drum hits.
It's easy to apply this technique to all the compressors that are available on mixanalog at the moment. The easiest one to test the whole procedure on is probably the GoldCan VCA that's included in the Rack1.
And lastly, if you're old school like that, you can also drop us an email down below: