Category Archives: Volca Sample

Characterizing Volca Sample’s Low Pass Filter

I’ve been preparing a couple of Volca Sample tutorials before going on vacation, and this question came up when presenting the low-pass filter. What kind of filter does the Volca Sample ships with? in order to test it, I used sample 27. This sample is a small snare with not too much bass and quite a lot of white noise. I recorded this sample being played with the filter at 127, 110, 100, 90, 80, 70, 60, 50, 40, 30, 20, 10 and all closed. At first glance, the filter sounds like a 12dB/octave one. Figure 1 shows the wave shape of those samples (A), and their corresponding spectrogram (B).

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Figure 1: Wave shape (A) and spectrogram (B) of sample 27 using different [HI CUT] settings. Form left to right: 127, 110, 100, 90, 80, 70, 60, 50, 40, 30, 20, 10, and 0.
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