If its frequency is modulated, that is, by increasing and decreasing it over time - for example with a sine wave - I obtain a modulation of frequency. If I have two oscillators, I can use one to generate the sound and another to modulate something of the first oscillator. Let us consider the three fundamental elements of sound: frequency, amplitude and phase. What many people don't know is that the DX7's frequency modulation synthesis ( Fig.1) is actually a phase modulation. Let's find out its potential, investigate the reason for a new version, let's try to understand if it's worth buying the update and, while we are, why not brush up on some old memories on the infamous frequency modulation synthesis? 23 years after the release of the FM synth par excellence, the very famous Yamaha DX7, and 5 years after the release of its perfect software clone, the Native Instruments FM7, the German company offers us an updated and enhanced version of the already excellent plug -in and could only call it “FM8”.
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