Messages

1

preenfm2 and preenfm3 / Re: preenfm3 sd card error

« on: October 27, 2020, 09:47:03 PM »

I just published a 0.92 firmware.
At the last moment i decreased the SD communication speed, would be great if you could give a try and let me know.
https://github.com/Ixox/preenfm3/releases

2

preenfm2 and preenfm3 / Re: DIY help, frozen screen

« on: October 27, 2020, 09:46:13 PM »

EDIT 2:  And this time, I did the following: It booted, I was able to do stuff, then I did nothing, then I waited, and then I just tapped the module (the whole thing, I just tapped the chassis), and then it gave me the blank screen.  So apparently there is some faulty connection of the (or a) chip.

That could explain.

Just in case : there's a display problem with 2.20beta firmware when screensaver is activated.
Mais sure that's not what you have.... Stick with 2.12_cv version for the eurorack for the moment.

3

preenfm2 and preenfm3 / Re: preenfm3 firmware : 0.92

« on: October 27, 2020, 09:43:48 PM »

New sequencer and many UI/control surface fixes.
I also dicrease the SD communication frequency as an attempt to fix the SD problem some user have.

4

preenfm2 and preenfm3 / Re: DIY help, frozen screen

« on: October 27, 2020, 08:53:34 PM »

It booted, I was able to do stuff in edit mode for a few seconds, and then it suddenly froze.  And then, as soon as I rebooted, it gave me the fully lit blank screen again.  And this happens over and over everytime I reboot.  think if I wait for a longer time and I power on the module again, I can get to the edit menu again for a few seconds, but then it will freeze again (Or maybe I am just imagining stuff).  Could it be that some capacitor is wrong or faulty?  Is my USB reader broken or something?

When you say "it suddenly froze", is it when you access browse or load presets ? or at any moment ?

Could it be that some capacitor is wrong or faulty?  Is my USB reader broken or something?

No i don't think so (for both question).
That's weird.
Could be a bad connection of the preenf405. Double check the DIP40 soldering and push a little more the preenf405 inside.

Ardi from Van Daal Electronics follows this forum, but you can try to contact him directly to see if he has an idea.

5

preenfm2 and preenfm3 / Re: preenfm3 / preenfm2 R6 : first PCBs available (BETA)

« on: October 27, 2020, 07:01:09 PM »

would you consider a wavetable oscillator?  im wondering how close is this to allowing user waveshapes...  it would sure update the preen sound and could be used to make oldschool and new school fm based sounds.  basically it would open up massive horizons for the sound designer. 

User waveshapes is a single wave form.
To have wavetables you need many wave forms with takes much more memory space. And requires a different algo.

ok failing that, what do you think of morphing oscillator shapes?  maybe even just a few standard crossfades like sine to square or sine to triangle or sine to saw or saw to square...  maybe square to octave square or saw to octave saw or sine to octave sine etc etc

Morphing oscillator shapes  ?
I think that's exactly what you get when you modulate FM modulation indices (MI) between operators ?
The waveform of the modulated operator is modified more or less depending on the MI value and on the modulating opererator.

No I don't have plan to add crossfades between waveforms. 

6

preenfm2 and preenfm3 / Re: DIY help, frozen screen

« on: October 27, 2020, 06:24:03 PM »

i have other usb sticks, but they all have way over 4GB.  Does that make a difference?

No i have some 32Gb key working fine.
http://ixox.fr/preenfm2/preenfm/usb-drive/

So you can give them a try.

7

preenfm2 and preenfm3 / Re: preenfm3 sd card error

« on: October 27, 2020, 06:04:10 PM »

I use this SDcard reader.
https://fr.aliexpress.com/item/32820320799.html?spm=a2g0s.9042311.0.0.27426c37lxLDpm

If it works with 0.90 and not with 0.91 i think it comes from the SDCard itself.
What model do you have ?

PM me your postale adress and I send you one, I live in France so you will get it very fast.

Thanks, that's not necessary for the moment 

8

preenfm2 and preenfm3 / Re: DIY help, frozen screen

« on: October 27, 2020, 04:25:27 PM »

Hi,

It's a bit confusing.

"!STM32F4 USB DFU!" is only reachable from the bootloader. And it's normal it's frozen at this point, the MCU is waiting to be update through USB (DFU mode).

If the preenfm2 is frozen on a fully lit screen, it's very often a problem with the USB key.
Did you keep the "pfm2/" folder on the key ? It must be there.

Do you have another USB key to try (after copying the pfm2 folder on it) ?

9

preenfm2 and preenfm3 / Re: preenfm3 sd card error

« on: October 27, 2020, 09:29:44 AM »

Having the SD problem fixed is my highest priority now.
I cannot reproduce it with my SD cards so i would need to have your exact SD card reference so that i can buy it and try.
Thanks.

10

preenfm2 and preenfm3 / Re: pfm2 : 2.20

« on: October 27, 2020, 09:27:52 AM »

24 bits Dac of new PCB are officialy part of the firmware.
Firmware 2.20 uploaded.
https://github.com/Ixox/preenfm2/releases

11

preenfm2 and preenfm3 / Re: [solved in 2.20] Preenfm2 Distortion

« on: October 27, 2020, 09:23:50 AM »

Should be solved in 2.20.
https://github.com/Ixox/preenfm2/releases

12

preenfm2 and preenfm3 / Re: preenfm3 sd card error

« on: October 26, 2020, 10:46:19 PM »

Thanks for pointing the github issue, i missed it.

As i wrote in the issue :
"0.91 use DMA to send and receive data from the SD Card.
I don't know why it does not work with your SDCard.
What sdcard do you use ?"

13

preenfm2 and preenfm3 / Re: Preenfm2 Distortion

« on: October 25, 2020, 11:04:29 PM »

Hi Xavier

Sorry, yeah R6. It’s on lots of presets with single key press when browsing and will always happen when playing chords on browsing. After loading the patches I been setting the voices to 6 or above and this fixes the problem.

Do you need me to send some presets over still?

Kind regards
Jamie

No thanks i have a fix for that.
And one for the screensavver which is broken in 2.20Beta.
Will publish a new firmware tomorrow or the day after.

Thanks

14

preenfm2 and preenfm3 / Re: Preenfm2 Distortion

« on: October 25, 2020, 02:31:07 PM »

I can reproduce it.
I'm having a look.

15

preenfm2 and preenfm3 / Re: Preenfm2 Distortion

« on: October 25, 2020, 12:21:55 PM »

Hi

I’m getting distortion on presets which I have linked back to voice amount and sometimes filter gain.

The distortion goes when I increase the amount of voices per instrument. My question is how do I stop the distortion when browsing presets as the voice count seems to drop back to default for the instrument?

Hi,

Can you please specify the PCB version R5 or R6 (24 bits dac) ? I assume R6 but not sure.
Do you have distortion only when browsing presets or even after loading it ?
Can you point me to a specific preset so that i can try ?

Thanks