Musical Synthesis 101
2.3c RM Synthesis
Ring modulation or RM is very similar to AM except for the fact that it modulates the amplitude of the signal in a bipolar fashion. So instead of modulating the amplitude from 0 to 1, the modulator signal modulated the carrier signal from -1 to 1. This results in a flip-flop of polarity of the carrier signal. Notice that at the peaks and troughs of the modular signal the carrier signal is also at its peaks and throughs.
RM is also unique to AM because it creates an entirely new signal that results in the addition and difference of the frequencies of the modulator and carrier signals. This means that if the input signals have frequencies of 100hz and 300hz the resulting frequencies will be 200hz and 400hz.
THE DEMO AUDIO IS BUGGED
“Frequency Modulation (FM) Synthesis.” n.d. Apple Support. https://support.apple.com/guide/logicpro/frequency-modulation-fm-synthesis-lgsife418213/mac.