From the course: Learning Modular Synthesis

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The voltage controlled low-pass filter (VCF)

The voltage controlled low-pass filter (VCF)

From the course: Learning Modular Synthesis

The voltage controlled low-pass filter (VCF)

- Next in our common subtractive synthesizer patch is the filter. What the filter does is remove, or filter out, some of the harmonics coming from your oscillators. The most common filter is the low pass filter. What it does is pass, untouched, the lower frequencies or harmonics, then at a certain point, starts to remove some of the higher harmonics. That magic point is called the corner, or cutoff frequency, and we're going to explore changing the cutoff and its effect on the sound in this movie. The next few movies after this one, we're going to play around with different filter shapes and different filter slopes. And play around with filter resonance. Actually adding to the strength of some harmonics. We're getting ahead of ourselves. Let's dive into filter cutoff first. I'm going to take one of our waveform outputs, I'm going to start with sawtooth since it has the most harmonics and the strongest harmonics, and take it into the filter input. And I already have it's input slide up…

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