FM Synthesis, FM8 and John Chowning
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Modular software & programming MaxMSP, Reaktor, Pure Data, Jeskola BUZZ, and other modular programs. Any questions relating to these programs (patching, favorite ensembles) should be posted in this forum.

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Old 02-01-2012, 04:13 PM   #1
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FM Synthesis, FM8 and John Chowning

Hello forum.

Recently I managed to obtain a copy of John Chowning's book on FM synthesis, and am working though it, trying to take my time so as to ingest everything and make it stick.

One difficulty I've found is performing the exercises that they have in the book with any of my plugins. I have the Ni Komplete 7 package and am trying to use FM8 to, for example, create a square wave. However, while FM8 has 6 operators much like the original Yamaha DX7 had, I haven't found an option possible to specify each operator to a specific frequency, as they'll be determined by the key that I press on the FM8 keyboard. You can offset and change the ration, but can't change the frequency. With each operator you can simply determine the wave type you want, however for the purpose of learning I'd much rather go about things the longer way.

Am I missing something blatantly obvious in FM8 that will allow me to do this, or is there another simple plugin out there that will allow me to perform said exercises?

Any and all help appreciated.

Thanks guys

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Old 04-01-2012, 08:35 AM   #2
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Re: FM Synthesis, FM8 and John Chowning

I just got FM8 myself and have been having some issues myself. I'm not sure if I can help much because I don't understand it very well. But the letters in the VST itself when the tops of them are clicked. You can change the pitch of your notes. Not sure if this will fix your issue but I tried



I have an issue myself. I produced an LFO/wobble whatever in fm8. But when I try to put it in the notes in my sequencer (piano roll FL) It disregards the wobble completely and just gives it a straight tone. Not really a similar issue but I can't find an answer anywhere else.

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Old 10-01-2012, 11:17 AM   #3
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Re: FM Synthesis, FM8 and John Chowning

Hey man are you still having trouble with this? If so let me know and I'll whack you up a quick FM synth in Max/MSP which you can run in the runtime.

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Old 10-01-2012, 12:43 PM   #4
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Re: FM Synthesis, FM8 and John Chowning

Quote:
Originally Posted by Beijing-King View Post
Hello forum.

Recently I managed to obtain a copy of John Chowning's book on FM synthesis, and am working though it, trying to take my time so as to ingest everything and make it stick.

One difficulty I've found is performing the exercises that they have in the book with any of my plugins. I have the Ni Komplete 7 package and am trying to use FM8 to, for example, create a square wave. However, while FM8 has 6 operators much like the original Yamaha DX7 had, I haven't found an option possible to specify each operator to a specific frequency, as they'll be determined by the key that I press on the FM8 keyboard. You can offset and change the ration, but can't change the frequency. With each operator you can simply determine the wave type you want, however for the purpose of learning I'd much rather go about things the longer way.

Am I missing something blatantly obvious in FM8 that will allow me to do this, or is there another simple plugin out there that will allow me to perform said exercises?

Any and all help appreciated.

Thanks guys
easy!

turn the ratio all the way down to 0

then specify the Hz you want the operator to generate with the offset parameter

when you do this, it won't matter what note you play

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Old 15-01-2012, 07:50 AM   #5
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Re: FM Synthesis, FM8 and John Chowning

Quote:
Originally Posted by Beijing-King View Post
Hello forum.

Recently I managed to obtain a copy of John Chowning's book on FM synthesis, and am working though it, trying to take my time so as to ingest everything and make it stick.

One difficulty I've found is performing the exercises that they have in the book with any of my plugins. I have the Ni Komplete 7 package and am trying to use FM8 to, for example, create a square wave. However, while FM8 has 6 operators much like the original Yamaha DX7 had, I haven't found an option possible to specify each operator to a specific frequency, as they'll be determined by the key that I press on the FM8 keyboard. You can offset and change the ration, but can't change the frequency. With each operator you can simply determine the wave type you want, however for the purpose of learning I'd much rather go about things the longer way.

Am I missing something blatantly obvious in FM8 that will allow me to do this, or is there another simple plugin out there that will allow me to perform said exercises?

Any and all help appreciated.

Thanks guys
use the ratio to get it close, then use the offset to match it

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Old 15-01-2012, 01:32 PM   #6
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Re: FM Synthesis, FM8 and John Chowning

no no noNO NO NO NO

he wants to set the operators to a specific frequency, regardless of the incoming MIDI note

so just turn the ratio to 0; and specify the frequency in offset.

so if you want 440hz, type 440hz into offset. then no matter what key you press, you'll get 440hz

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