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Messages - Xavier

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I really cannot reproduce any freeze with the above firmware.
There were some confusion between NRPN and CC in the preenfm2 firmware < 2.08d.

Arpegiator direction and octave were using CC 98 and 99 which are used by NRPN....  ::)
This is what i fixed above.
And i could not reproduce any problem with this fix.
I can PUSH hundreds of time "Squeechy 8" to my preenfm2 from my MAC through USB without any visible problem (specialy weird char in the arpegiator menu).

But i just saw a bug when you send value geater than the expected max value for a parameter.
This is what i fixed in this 2.08e. (sorry for the 2.09 name above, i should have kept it for the bug free version).

If you can try, that would be great.



Do you use MIDI input or USB on your preenfm2 ?

Actually i did flash my unit with the 2.09 firmware before posting. So the pushing button still produce freeze. Maybe Jalex can tell us how it's working on his side.

Yes sorry i removed my post but you replied too quickly.
I can reproduce the problem and the 2.09 fixed it for me.

I'll give it another try later today.

Thanks a lot for testing.

Please let me know if the attached firmware fixes the problem.

(Firmware removed....)

Sorry for the super long delay and thanks again for the details.
I think it's fixed in the attached firmware.
Please let me know,

Edit : removed attached firmware. Should be fixed in official 2.09.

PreenFM2 / Re: Pushing a saved state from editor to PreenFM2 freezes it!
« on: October 26, 2018, 09:25:10 PM »
Here is one of the patch.

By the way, i realise by looking at the file that there is no file extension. Are those saved states usable only by the editor, or can i upload it to PreenFM2 USB key and load it on the unit just like i would with an DX7 sysex file for exemple?

thanks for having a look to it!

I can upload your preset "Squeechy 8" to the preenfm2. It does not crash, does this preset actually crash on yours ?

The editor preset is a compressed file of a xml representation of the internal editor parameters ;)
So only readable by the editor itself.

EDITED: i tried on my PC. Will give a try on my mac.

PreenFM2 / Re: Any PFM2 Librarian software out there?
« on: October 24, 2018, 10:59:12 PM »

No, I'm not aware of any patch management application.

PreenFM2 / Re: Pushing a saved state from editor to PreenFM2 freezes it!
« on: October 22, 2018, 10:53:49 PM »


Seems like there's a problem with the value in the patch, while it's saved or while it's loaded.
Can you share the patch ?


PreenFM2 / Re: MIDI keyboard scale incorrect on PreenFM2
« on: October 22, 2018, 12:03:48 PM »
Seems like you have Scala scale enabled.
Look part 3.4 here :

PreenFM2 / Re: Only 4 voices? / No 0 velocity? / Arturia Keystep problem
« on: October 18, 2018, 09:49:57 AM »

Video is a unusual way to ask questions  :)

1. Voices are shared among the 4 instruments.
    What you see on the screen is the number of voices for the instrument you currently edit : #3 in you video.
    If you want more voices for I3, you have to reduce the number of voices of other instruments.
    More info here :

2. Velocity
     If set to zero, volume is not impacted by velocity.
     But the different modulation indices can still be.
    Search for "v is the amount of modulation that is injected by the velocity of the note you pressed." in the above manual.

3.  Maybe your keyboard send program change.
     Try to disable program change in the menu.
     Search for "Settings" here :

PreenFM2 / Re: Inconsistent sound with certain algorithms [Fix pending]
« on: October 14, 2018, 09:12:53 PM »

Wow impressive test  ;)
OK i also fixed alg11 and alg16 in the attached firmware.
If you're into code here is the change :

Thanks again for your test and report :)

In real FM you have to  add a high pass for operator in the middle of a cascade.
Without that, the final carrier is pitched shifted.
So in Algo1, op2 is high passed which caused this difference.
Keeping your same values, you won't here any difference if you use Op1 & Op3.

PreenFM2 / Re: Inconsistent sound with certain algorithms
« on: October 13, 2018, 12:52:04 PM »
Thanks again for the detailed post.

I think i have a fix for these problems.
Some variables that must be 0 at the beginig of a note,  were not correctly reset at the end of previous note. Specially audible when carrier releast time is 0.

Please, can you confirm the attached firmware fix that ?
(It also fixes the other bug you reported with op1 release time of default combo always 2.56).

To flash, upload and flash the firmware through the bootloader is the quickest solution :



PreenFM2 / Re: Default combo does not respect release time setting
« on: October 12, 2018, 11:36:01 PM »
Thanks for the report, i'll take a look at that.

[Fixed in 2.09]

PreenFM2 / Re: PreenFM-2 - Novation - Sonic State
« on: October 12, 2018, 11:00:23 PM »

Very nice :)
Thanks a lot for sharing.
Seems like this Chris Calcutt took his preenfm2 with him during his SLMK3 tour. I saw it on several other video.

PreenFM2 / Re: Alternate Voice Assign mode?
« on: October 12, 2018, 10:59:19 PM »

Sounds interesting, but would be more the role of a midi processor before reaching the preenfm.

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