Patch, patching, in the music world, was originally used in the age of the first big modular synthesizers, where you could create patches, linking Oscillators to ADSR envelopes, Filter (LP, HP, BC and NOTCH) modules, and so on. Of course this technique is still available on many modern modular synthesizers.
So by modular we mean hardware or software groups that can be subdivided into other smaller groups called patches. Furthermore, these groups can also be built with sub-patches, with these ones being built from modules (the smallest basic elements in Usine). This is also the way you’ll work in Usine.
In the same way, you can find parallelism between the world of electronics and Usine. Here’s an example with a LFO (Low Frequency Oscillator), which creates a sinusoidal wave you can visualize with an Oscilloscope module in Usine. You can also add an electronic switch, here connected to a Pass Flow module, to pass or block the signal from the LFO to the Oscilloscope.
Before beginning these lessons, you should have read and assimilated the Usine user’s Manual and practicing the examples included can be a good idea too.
Video : Patching made simple