Learn FM 10 - Modulation Index

A term simply not used as it is math related. It pretty much means the amplitude (volume) of the modulation operator. This is not totally correct but is a find way to think about it as we move on to side-bands.

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[DavidVine-DOCVIDPRO]

I'm studying for an Amateur Radio Extra Class License Exam in which there is a question about the "Modulation Index." Your explanation was plain and simple so now I understand it. Thanks!

[SwiftDreamer]

Super underrated channel! Thank you Composing Gloves!

To your point about the input modulation: I learned from an Sound on Sound article that you could just modulate the modulators volume to automate the FM of the carrier signal (for those that are lost: basically instead of osc 1 FM'ing osc1 as Composing Gloves showed off, turn the 2nd knob of the first row to FM Osc1, then play with the volume of Osc 2 via LFO, Mox X/Y, etc.

This video is pretty old now so maybe you already know this CG

[yolofapper]

I love you! your videos are very helpfull, I fucking hate things being explained by equations becose I am noob at math, but you can explain it so even un-educated person like me can understand it, modulation index = modulation amount knob

[ronaldoEscalanteCruz]

Modulation index for
FM Index = (delta f)/ fm
AM Index = peak voltage of carrier wave without modulation / peak volatage of modulating signal, or
I = Em/Ec

you never mentioned this simple statement

[isaacscrim]

My friend, what are sidebands? Obviously I am new to this haha, what I can see is that when you modulate a signal all of these extra come into play but the original frequency seems to be maintained and maybe strengthened, so are sidebands all of those other weaker frequencies which make up the new signal?