We know using one oscillator to frequency modulate another is a lot of fun…but just what is the difference between the different types of FM? I finally got my hands on a module – the Endorphin.es Furthrrrr Generator complex oscillator – that is capable of being switched (with some behind-the-faceplate fiddling) between exponential, linear, and linear through zero FM, so this is a good opportunity to finally make an apples to apples to apples comparison between the three.
I created the original Learning Modular Synthesis course for those who were complete beginners to the world of modular synthesis. The next question became: How do I help users reach the next level? The answer is the Eurorack Expansion Project. The idea is you have a nice core system, and want to know how to intelligently expand it – particularly if you interested in a specific technique or are after a certain sound. I’m tackling this in two parts: an online course, and a weekly series – including a dedicated Patreon page for the hard-core users out there.
One of the potential challenges of using a modular synth is keeping multiple VCOs in tune with each other as well as external instruments as you play up and down a scale. Most VCOs have trim controls to improve their tracking, but they can occasionally be frustrating to use: They may require you to remove the module from the case to access them, or the manufacturer might have not have used high-precision multi-turn potentiometers for the trimming controls. Therefore, I’ve added several AJH Synth V-Scale Variable Precision Buffers to my modular cases, and have been happier for it. What sets it apart is that 4 of its 5 outputs have high-precision trimmers accessible from the front panel, allowing you to improve the tracking of connected modules like VCOs and resonating filters.