![]() The sidebands are spaced according to a multiple of the modulating frequency. The number of sidebands (the bandwidth of the resulting signal) is determined by the amount of modulation applied to the carrier. Non-integer ratios produce enharmonic sidebands. Integer ratios between the frequencies of the carrier and modulator produce sidebands whose frequencies are integer multiples of the carrier and modulator - i.e. Although it's still kind of a game of experimentation even if you do understand the principles. If you've got the headspace for it, the Curtis Roads book explains the science. More complex ratios (those that don't involve whole numbers) will produce more inharmonic spectra. Simpler ratios will produce more harmonic spectra. And a basic understanding of how it works. Lots of quality time spent mucking around with a DX7. ![]() ![]() ![]() How did you folks learn how to program FM? ![]()
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