Top 5 signal modulations!
Pulse width modulation (PWM). This technique is primarily used as the way to change the tonality of a square wave. It can be useful for things like chiptune, but it is a rather limited effect. And the vast majority of synths do not allow you to change the carrier signal of PWM with the flexibility of other forms of modulation.
Amplitude modulation (AM). This is somewhat useful, but it is not widely used as the same effect can be more or less accomplished with fast LFOs, and with modern synth capabilities there really is not much of a reason to use this.
Ring modulation (RM). This can make for some interesting sounds, and this technique is often used for adding “growliness” to something. Great for vocal processing and experimental sound design!
Frequency modulation (FM). Despite how often it seems to be used in Dubstep, it is actually rather rare. This is because most synths used for Dubstep had phase modulation often labeled as frequency modulation! The techniques are very similar, but there are some differences in the encoding process that change how capable each one is.
Phase modulation (PM). The most common form of signal modulation used in Dubstep! There are so many different ways to use phase modulation, and it can make for some truly incredible sounds. It can even simulate frequency modulation by using a saw wave as the carrier signal!
It seems there is a formatting error. While initially it went 5 - 1, Waste Of Dot Money has turned all of the numbers into ones. How unfortunate.