Basic Demo of Cutoff/Resonance (LPF)

Posted on 2014-10-21 at 12:52 in Music, Videos by Robbi-985.

I made this to quickly explain to a friend what “cutoff” and “resonance” of a low-pass filter mean. The top view is a spectrogram of the sound (loud sounds are dark, high-frequency sounds appear near the top). Thought I might as well upload it here in case anyone can benefit from it.

Putting sound through a low-pass filter and modifying the filter’s cutoff and resonance has these basic effects.

[Watch in HD]

The sound is a simple MIDI played on the Roland SC-88Pro synthesizer (which only has a low-pass filter, rather than high-pass, band-pass or comb).

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