Author Topic: preenfm3 / preenfm2 R6 : first PCBs available (BETA)  (Read 1293 times)

solipsvs

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Re: preenfm3 / preenfm2 R6 : first PCBs available (BETA)
« Reply #15 on: September 24, 2020, 05:59:04 AM »
item 14 through 19 in the bom for the newest preenfm2 pcb r6 is not available from mouser?

Xavier

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Re: preenfm3 / preenfm2 R6 : first PCBs available (BETA)
« Reply #16 on: September 24, 2020, 09:22:38 AM »
item 14 through 19 in the bom for the newest preenfm2 pcb r6 is not available from mouser?

Oh yes you're right.
They are simple 2.54m (0.1") headers.
I added mouser links in the BOM

I've also added pictures in the PCB page.
« Last Edit: September 24, 2020, 09:25:27 AM by Xavier »

Xavier

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Re: preenfm3 / preenfm2 R6 : first PCBs available (BETA)
« Reply #17 on: September 24, 2020, 09:24:54 AM »
Hi - one more question, do you have any info for the 3D printed case for the fm3? I trying to price the cost of this into the build.

I'll only provide model and files for the 3D printed case.
Will update the github directory with it in the next few days.

lokki

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Re: preenfm3 / preenfm2 R6 : first PCBs available (BETA)
« Reply #18 on: September 24, 2020, 02:02:44 PM »
hi xavier,

from looking at the pictures of the preenfm3 and the BOM it seems there is no "analog" volume control anymore, right?
you wrote about a mixer that you implemented. will master volume be a value to be saved in a preset as well? that would be great. (so a combo sound would store both individual volumes and the master volume)

 

Xavier

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Re: preenfm3 / preenfm2 R6 : first PCBs available (BETA)
« Reply #19 on: September 24, 2020, 04:11:48 PM »
Hi,

from looking at the pictures of the preenfm3 and the BOM it seems there is no "analog" volume control anymore, right?

Correct.

you wrote about a mixer that you implemented. will master volume be a value to be saved in a preset as well? that would be great. (so a combo sound would store both individual volumes and the master volume)

Presets are still presets only as in the preenfm2.

The mixer saves the 6 instrument presets + all the mixer values.
You can see all those values here :
https://github.com/Ixox/preenfm3/wiki/The-Mixer
Yes volume for each instrument is part of them.

« Last Edit: September 24, 2020, 04:22:29 PM by Xavier »

lokki

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Re: preenfm3 / preenfm2 R6 : first PCBs available (BETA)
« Reply #20 on: September 24, 2020, 09:08:39 PM »
ok, just to clarify...

those mixer settings can also be recalled by program change messages for example? so that i can recall different sounds/combos with different volumes?

cheers

j4ustin

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Re: preenfm3 / preenfm2 R6 : first PCBs available (BETA)
« Reply #21 on: September 30, 2020, 01:55:52 AM »
Hey, just got my preenfm3 board in today and have everything assembled, but I'm not seeing anything boot up on the screen when connected to usb power. Is there a certain configuration for the jumpers that I need, or do I need to flash the software?

EDIT:

Got it working. I did have to flash the firmware, but the DFU device wasn't showing up in the recommended program. Instead I just downloaded the zip file and utilized the .cmd files to flash the device. The device powers on and the buttons all seem to work fine.

I'm working on getting the presets on the device so I can start listening to it and testing it out! Looking forward to getting some crazy sounds out of this thing as well as printing out the case!
« Last Edit: September 30, 2020, 06:00:04 AM by j4ustin »

Xavier

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Re: preenfm3 / preenfm2 R6 : first PCBs available (BETA)
« Reply #22 on: September 30, 2020, 07:47:30 AM »

Nice to read that.
One of the first preenfm3  :D

All feedback are very interesting for me.
I expected the DFU flash to be easier, but it does not work in some case.
Do you use Windows 10 ? It seems not to work on older version.
I'm glad you managed to flash with the cmd files, but it's not straightforward with windows.

Your message made me realize i haven't publish the case files yet.
Here is the wiki page I've just put together:
https://github.com/Ixox/preenfm3/wiki/3D-Printing-Enclosure

I'm working on getting the presets on the device so I can start listening to it and testing it out!

Have you unzipped the pfm3.zip file on the SD card ?
You should get some presets available.
« Last Edit: September 30, 2020, 07:49:55 AM by Xavier »

j4ustin

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Re: preenfm3 / preenfm2 R6 : first PCBs available (BETA)
« Reply #23 on: October 26, 2020, 07:12:01 AM »
Sorry I haven't had time to check back on this forum in a bit.

I do have Windows 10, but flashing chips on my computer has always been a problem. It ended up working fine after I ran the cmd which was easy enough. Should be straightforward to upgrade from here using the SD card.

Thanks for those files! I just sent off to have my case printed. Will post back here once I get my case in and have it all assembled.

I did get the presets onboard and they all sound good! I'm working on building some more pads in that have a bunch of motion + modulation. The crazy metal / fm madness preset bank is awesome. 

solipsvs

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Re: preenfm3 / preenfm2 R6 : first PCBs available (BETA)
« Reply #24 on: October 27, 2020, 04:11:09 AM »
xavier,

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. 

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

sorry if this makes anyone uncomfortable.  im just trying to think of ways to make preenfm3 more unique among fm + midi + desktops, which it is already of course!

Xavier

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Re: preenfm3 / preenfm2 R6 : first PCBs available (BETA)
« Reply #25 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.  ;)