Harmonic Overtones and Resonance
Section 15:
Changes In Shape of Square Wave with
2nd Order Low-Pass Resonance
This page features 6 charts, which show a square wave without resonance followed by charts that show the phase and amplitude changes caused by a low-pass resonance at the frequency of resonance and at 1, 2, 3, 4, and 5 octaves below the frequency of resonance.
Square wave without resonance
Reshaped square wave with fundamental 5 octaves below
flattest amplitude 2nd order low-pass resonance.
Damping = 1.414
Reshaped square wave with fundamental 4 octaves below
flattest amplitude 2nd order low-pass resonance.
Damping = 1.414
Reshaped square wave with fundamental 3 octaves below
flattest amplitude 2nd order low-pass resonance.
Damping = 1.414
Reshaped square wave with fundamental 2 octaves below
flattest amplitude 2nd order low-pass resonance.
Damping = 1.414
Reshaped square wave with fundamental 1 octave below
flattest amplitude 2nd order low-pass resonance.
Damping = 1.414
Reshaped square wave with fundamental at
flattest amplitude 2nd order low-pass resonance.
Damping = 1.414