PreenFM > preenfm2 and preenfm3

Few observations

<< < (3/5) > >>

kuzma_p:
Maybe DC in the modulating signal introduces this 'beating' effect too?

https://www.dropbox.com/s/aldhoj04nw25fcl/PFM2.flac

It is init patch, based on algo11
OP3 -> OP2 -> OP1

I'm increasing IM1 till ~0:28 mark ( IM1= ~2.30) , since this mark i start increasing IM2 and since 0:40 'beating' is audible. From 0:40 to 1:03 i'm increasing IM2. Then i retrig key and get kinda different sound — this is behavior from #3 of my initial post.

This is how TX81z behaves with similar OPs setup:
https://www.dropbox.com/s/lmnqj3zlmz4cu6f/tx81z.flac

Amazing:
For TX81z i have to retrig key for IM to take effect, but i can tweak ratios in realtime. And for PFM2 vice versa — ratio tweaking is non-realtime but IMs tweaking is.

kuzma_p:
Found graphics bug:
Algorithm diagram on PFM2 doesn't show OP5  for Alg26 :)

Xavier:
Fantastic day for the PreenFM today..  :D
Thanks Kuzma, you really put me on the right tracks.

Adding a DC filter on the right operators  makes a huge difference.
And does not add that much CPU.. 
In the worse case i will have to remove 1Khz to the sampling rate.

And this DO fix the pitch shift that can be small or bigger depending on the parameters:
It does fixes the beating you ear and add a LOT of stability to the sounds.
It makes chords much clearer in many situations.

I Added the DC filter thing in ALGO1 to ALGO9.. And not the other, don't try on DX7 that uses ALGO10 and more.

Here is a WIP beta version --
---EDITED : will open beta thread soon --
( Put it in pfm2/ beside the last stable firmware so that you can quickly switch : Power on + Op)

Problem with "szer" oscillator waveform please don't use it.

Please don't report any problem yet with the following but  you will also have :
. velocity IM beside each IM per voice (not per timbre as in the matrix)
. one arpeggiator per Instrument (engine section)
. Filter slot (engine section). Frequency of LP and HP available as destination in the matrix. Try "Bass 0.00 1.00" on bass :-)
. OP5 of ALGO26 now show up ;-)

Xavier

kuzma_p:
Cool, gonna try this today!

kuzma_p:
Huh, this filter slot sounds promising indeed.
Looking forward to this firmware.

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