Sound designer and synth designer Rob Papen shared this video, which features an introduction to subtractive synthesis, using a large-format modular synthesizer.
Papen gives a detailed walkthrough of making a typical subtractive synthesis patch.
The video features a Synthesizers.com Portable-22 – an analog modular in 5U format. It features three oscillators, envelope generators, amplifiers, a mixer, state-variable filter, ring modulator and more. Details are available at the Synthesizers.com site.
Note: The video includes a brief promo for Papen’s book, The Four Element Synth, which is available via Amazon.