PreenFM > preenfm2 and preenfm3

FM Questions

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clément:
Hé hé :)

Hey ItalianOx, I'd love to take a look at this pdf but the link seems to be down (or even the whole website actually), did you download it a long time ago? I'll check again tomorrow morning.

EDIT: it's fixed, downloading now!

ItalianOx:
Hi! So I found this chart that converts DX7 output (with other FM synths) to IM values: http://www.angelfire.com/in2/yala/t2dx-fm.htm

Looking at these, would you say they're accurate for the Preen? If so, this can be a great resource for people such as myself who are used to the output levels of synths like the DX/SY series and FM8.

clément:
I have no idea if this is accurate for the Preen, but I'd be curious… thanks a lot for sharing this, that will be useful!

6581punk:
The big difference in Preen vs Yamaha is the lack of feedback.

Xavier:

Yes lack of feedback.
But also FM vs phase modulation which does not give the same timbre where there are 3 operators in a row.
Yamaha also has a special attack mode... Very fast.
And the way it works makes eveything non linear. Requires big table to make the conversion from yamaha operator output to Modulation indices.
See the code in preenfm2 code to convert Yamaha parameter to preenfm2 parameter:
https://github.com/Ixox/preenFM2/blob/master/src/utils/Hexter.cpp
I spend a lot of time on it, even if what i do is based on the Hexter sysex decoder code.
http://dssi.sourceforge.net/hexter.html

As the engine inside the preenfm2 are very different, i don't think we can do much better than how it is currently is without rewriting the preenfm2 engine.

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