An oscillator is an electronic circuit that produces a periodic, oscillating electronic signal, often a sine wave or a square wave. Modulation is the variation concerning the time of quantities that describe some regular process produced by an external influence. We present a waveform tool here to demonstrate the modulation of oscillators in the audio-frequency band. AM is Amplitude Modulation – involves two oscillators, referred to as the carrier and the modulator, where the modulator controls the carrier’s amplitude. FM is Frequency Modulation – involves two oscillators, referred to as the carrier and the modulator. As the modulator’s waveform oscillates between some minimum and maximum amplitude value, the momentary value modulates the frequency of the carrier.
We also love analogue synthesizers!. These instruments have an immediacy of control and usually, their sound sculpting gives you a feeling of being the master of the noises. The thing is that to know synthesizers, its good to know about oscillators. We also love them because when first invented, they took the musical world to new levels and places, a bit like Artificial Intelligence(AI) is doing on computers for us now. Anyway have a play with the following set of tools to see if you like the sounds. Nothing fancy or musical-scale based, just good old fashioned, machine-produced wave forms and noises!