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Messages - Xavier

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Simple Midi clock also broke the audio engine.
It should be fixed in 1.51.B1...

To download here :

How to upgrade :

Please, let me know if it solves anything on your side.
Thanks for your help  :D



OK thanks.
I think i know what happens.

In Ableton Live, can you disable "Midi TimeCode" for the midi output sent to the PreenFM ?

I hadn't realized Midi TimeCode sends information with the SysEx protocol.
The PreenFM Audio engine stops while waiting for the end of SysEx messages which can make these little audio glitches...
I'll confirm that soon. I didn't check with the code yet.


That's bad. I have to fix that.

Loderbast, do you also use ableton live ?
I just tried several midi config with Reaper and i could not reproduce anything like this.

If you have a midi file I could use that would be great ?
Also, i'm currently downloading a Free-30 days live trial version. Maybe the problem will be obvious with live.



Hi, thanks for the feedback.

I'm not sure i get it.
With an external controller (mid keyboard ?) it works.

But with Ableton Live and with your hardware sequener there's a problem ? Right ?
What is the exact problem ? Notes don't stop ? They are cut ? they are played several times ?

Do you replay something you record with a keyboard or do you use a kind of midi algorithm to send the notes ?
I may be wrong, but I suspect the midi notes to arrive too quickly and as PreenFM polyphony is limited, the rendering is not smooth.

I doubt trying with an other firmware will solve anything.

Could you record the midi that makes the note stuterring in a midi file and send it to me ?
I'd like also to hear what you hear ? Could you record it ?


PreenFM1 (the blue one) / Re: Another Preen FM sucessfully built
« on: January 18, 2012, 09:14:37 AM »
Hi Julien,

Thanks for your post, i love that kind of post  :D
I think you don't have to upgrade the firmware because you have the last one ;-)
When you power on the PreenFM, you should see 1.50 somewhere. If it's the case, you are up to date.

1.50 is the same as 1.50.Beta4.
I will make a official annoucement next week, when all the kits are ready to ship.

Congrats for the fast build.
Enjoy your new sound module, and don't hesitate to share your patches ;-)


PreenFM1 (the blue one) / Re: Got Lucky Today
« on: January 15, 2012, 09:59:02 PM »

WOW... congratulations.  :)
I'm glad to read that, because the resistor sheet takes me lots of time to prepare ;-)

Don't forget to le me know when you use it in a track.


PreenFM1 (the blue one) / Re: MIDI Clock
« on: January 09, 2012, 11:49:20 PM »

Hi Paul,

Midi Clock is definitely something i have to add.

I'll ship the Kit tomorrow.


PreenFM1 (the blue one) / Re: Firmware 1.50 Beta4 : Step sequencer inside
« on: January 08, 2012, 12:08:46 AM »

Happy new year...   :D
I'm glad you found what you expect regarding the LFO.


PreenFM1 (the blue one) / Re: Preset sharing?
« on: January 08, 2012, 12:08:01 AM »

Hi Max,

To receive and send sysex I use "Simple Sysexxer" with Linux and my sequencer Reaper with Windows.
If anyone knows a good simple sysex program, let us know.

I'd love also to have some patch sharing on the forum. Max, don't be shy and put the first one ;-)
There are 20 PreenFM Kits for the moment, but 60 others should be ready soon... So we may expect more users and more poeple sharing patches.


PreenFM1 (the blue one) / Re: MIDI Clock
« on: January 08, 2012, 12:03:33 AM »

Hi Paul,

Thanks for your question.
Unfortunately, PreenFM is not aware of any Midiclock so it's not possible to synchronized anything to it.

That would be very interesting. Maybe in a future update...
At some point i'd love to add an arpegiator too and Midi clock will be required.


PreenFM1 (the blue one) / Re: Firmware 1.50 Beta4 : Step sequencer inside
« on: December 27, 2011, 10:19:13 PM »

Beta4 uploaded with a bug fix.


PreenFM1 (the blue one) / Re: Firmware 1.50 Beta3 : Step sequencer inside
« on: December 23, 2011, 09:26:56 PM »

Thanks Max, i'm glad you like it.

And thanks for reminding me i had to finish the online manual  ;)
It's done now.

Let me know if you find the answer of your question in the LFO part.

Joyeux noël à toi aussi  :D


PreenFM1 (the blue one) / Re: Firmware 1.50 Beta2 : Step sequencer inside
« on: December 22, 2011, 04:39:44 PM »

Sorry Towel, i've just uploaded a BETA 3 ;-)

Step sequencer has now a exponential scale  so you can get better semitone scales when targeting "o*Fr".
Matrix multiplier should be set to 64 in BETA 3 for having 1 semitone per values from the step sequencer.

I also added a preset with SEQ.


PreenFM1 (the blue one) / Re: Firmware 1.50 Beta2 : Step sequencer inside
« on: December 22, 2011, 12:00:26 PM »
1.50 Beta 2 available...

. lfo5 and lf 6 gate are accessible in matrix destinations. Set gate = 1.0 then in the matrix  try with a low frequency LFO1  (BIAS=0) or with the pitchbend as source... interesting...
. All oscillator frequencies available in matrix destinations : "o*fr"... (required to rewrite how the frequency  was used in the engine to get proper result....) to have semitone scale in step sequencer set the matrix multiplier to 85...
. "Done" display shows up for 1.5 seconds than diapear
. The voice is set to the maximum when changing the algo (if voice != 1).

As i say in the point 2, i had to change how the frequency was used in all the ALGOs... So don't hesitate to report if you find anything strange regarding modulation or frequency. Thanks.

And thanks for the feedbacks  :D


PreenFM1 (the blue one) / Re: Firmware 1.50 Beta1 : Step sequencer inside
« on: December 20, 2011, 06:52:59 PM »
Towel, thanks for the feedback.  I'm glad to read you like it.

Having one matrix destination for all frequencies is a very good idea and should not be complicated to add.

For lfo5 and 6 i have in mind to allow "gate" as a destination in the matrix.
The depth should be possible by using the mtx# destination (matrix multiplier) .

Mtx1:   Lfo5    10    Im1
Mtx2:   Lfo1    2       Mtx1   

The row mtx2 should modulate (using lfo1) the multiplier 10 of row mtx1.

I'm away from home so i cannot try for the moment. Let me know... All remarks help me.
Specially if does something unexpected ;-)


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