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In this series, I'm taking a detailed look at how to build an analog VCF from scratch. To keep it as beginner-friendly as possible, I'm explaining what all the components do in detail.
This first part deals with passive first- and second order high & low pass filters. If you want to follow along, here's a bill of materials:
1x 1M mono potentiometer
1x 1M stereo potentiometer
1x 47k resistor
2x 10 nF capacitor
2x jack socket
Chapters:
00:00 Intro
00:42 What's a filter?
03:50 Oscillation basics
06:16 Low pass analysis
10:57 Low pass build
12:49 Moving the cutoff point
14:33 High pass analysis
17:44 High pass build
18:05 Higher order filters
19:20 Second order low pass build
20:40 Outro
