Cornus Ammonis

@cornusammonis.bsky.social

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Just a feedback loop

Equations demonstrating that distortion applied to two tones with a perfect 5th interval between them results in an intermodulation distortion component that is an octave below the fundamental. This technique is often used by guitar players to get a full sound.
Example showing that amplitude modulation of a wave with a phase-shifted version of the same wave doesn't change the amplitude of the created harmonic.
Equations showing tanh(x) in "gain reduction form" is an even distortion.
Example showing that multiplying odd and even harmonics together produces odd harmonics.
Example of a simplified gain reduction function. There are several ways to design one of these functions, especially when taking CPU performance in mind, although the overall effect is basically the same.
Graph of a softplus function showing different knee parameters.
Diagram of a compressor I found online, which incorrectly says the sidechain signal is not audible.
Series expansion of tanh(x) when sin(x) is substituted, showing that the result gives us a harmonic series.
Power series of the tanh function.
List of identities for powers of a sine wave.
Trig identities for multiplication of sine waves.
Spectrum of amplitude modulation between a carrier signal and a modulator signal
Graph of the first 8 harmonics of a square wave
Spectrogram of a "power chord" showing the 1 octave subharmonic caused by intermodulation distortion.
UV map that looks identical to a mesh wireframe and is useless for texturing purposes
Table of encoder settings indicating that uploading lossless video is best.