Messages

361

preenfm2 and preenfm3 / Re: wooden case

« on: August 17, 2016, 08:35:25 PM »

it is cnc. it is now sanded and epoxied but not yet finished. (family)
still trying to choose the best option for opening and closing of the top without visible screws :-)
also the display opening is for an lcd, not oled. but i try to find a solution to make both fit. lcd for less noise and cheaper to change if it breaks and oled for the looks.

it looks great and i will definitely put up some more pictures once it is finished.

362

preenfm2 and preenfm3 / Re: Screen Issue - what I am doing wrong?

« on: August 16, 2016, 09:53:31 PM »

one last suggestion would be to power the preenfm from a wallwart via the 9v jack, not usb. that way the internal voltage regulator will generate the 5v and you may be in luck because the voltage level may be different enough to solve the hickups.

363

preenfm2 and preenfm3 / Re: Screen Issue - what I am doing wrong?

« on: August 16, 2016, 08:24:51 PM »

this is interesting. my screen problems when powering the preenfm2 from my macbook air vanished when i did the noise reduction mod. i installed an 68 ohm resistor, so the voltage drop is even more noticeable. i always thought the air did not have enough current for the preenfm2 but maybe the voltage was just slightly too high for the oled to get the digital signals right. it is a little over 5v when measured.

thanks for sharing

364

preenfm2 and preenfm3 / Re: stuck note! was: aftertouch bug? (or general modulation)

« on: August 15, 2016, 02:06:09 PM »

xavier i ran some more tests, and it does also happen when i set voices to more then one on a channel, but it is not so obvious because there is no gliding then and the noise is much quieter because the stuck voice is only a portion of the whole channel sound. so for best reproducibility try with a mono patch.

365

preenfm2 and preenfm3 / Re: Screen Issue - what I am doing wrong?

« on: August 07, 2016, 11:39:35 PM »

i had similar issues with a macbook not delivering enough current to the preenfm2. try a different power supply (other usb port, different pc, wall wart instead of usb) and see if the error persists.

366

preenfm2 and preenfm3 / wooden case

« on: August 03, 2016, 09:46:40 PM »

wooden case coming from the cnc, now sanding and epoxying...

367

preenfm2 and preenfm3 / Re: I want one !!

« on: July 23, 2016, 12:20:11 AM »

well, i cannot see anything at all that you can actually order from xavier's shop right now, but maybe it is different for you. the items are there, but you cannot click on add to cart. (it says vacation will be over in september)

yes you can use the CR402-GB-450 but you will have to use a usb-connector from the board to it. it's all very well described here:

http://ixox.fr/preenfm2/build-it/thebuild/ (there is a link for the special case of the cerb40, to an older build instruction, where you'll find the details)

you can buy preassembled kits here if you like:

http://vandaal-electronics.com/shop/

or just wait until september and order a full kit from xavier (no need to order anything from mouser then)

368

preenfm2 and preenfm3 / Re: I want one !!

« on: July 22, 2016, 10:48:54 PM »

i don't know if xavier still has boards, they are not in stock...

you can buy this as direct replacement for the preenf405:

http://www.mouser.ch/Search/ProductDetail.aspx?R=CR402-GB-450virtualkey57550000virtualkey958-CR402-GB-450

optocoupler:

http://www.mouser.ch/ProductDetail/Lite-On/6N137/?qs=sGAEpiMZZMs6akeJfFiy2iewxhKaJ5gR

what is the other missing part?

you have to create a login at mouser i think. then you can import the basket and edit the positions that are not available anymore.

but your big problem will be the board...

369

preenfm2 and preenfm3 / Re: stuck note! was: aftertouch bug? (or general modulation)

« on: July 22, 2016, 10:30:15 PM »

no problem. have a nice holiday! enjoy your family time. if it helps, here is a midi file attached, that triggers the problem sometimes, just play it in a daw with midi output set to preenfm, maybe you have to play it twice or three times, but at some point you will get the low stuck note. play it at 120bpm

370

preenfm2 and preenfm3 / Re: stuck note! was: aftertouch bug? (or general modulation)

« on: July 20, 2016, 10:27:29 PM »

thanks clément, this is good to hear! so it seems i am not going crazy. as i wrote in my 2nd post i think the source is fast played note runs very staccato and on the same note. at  some point the lowest midi note possible (which i never played) gets stuck. if one sets voices to 1 and glide to some amount, every note will glide from below, also a sign of that stuck note. sending a note off for that note (midi note 0) releases the note again. but eventually it happens again. i want to use the preenfm with a midi bass controller (4 channels) and like this it is not useable for live use...so let's hope xavier can fix this.

371

preenfm2 and preenfm3 / Re: stuck note! was: aftertouch bug? (or general modulation)

« on: July 18, 2016, 12:22:58 PM »

would be highly appreciated! this makes me crazy...

372

preenfm2 and preenfm3 / Re: stuck note! was: aftertouch bug? (or general modulation)

« on: July 15, 2016, 10:40:48 AM »

and the last message :-)

i can confirm this happens with ableton live sending notes to preenfm2 as well! i created a fast run of notes (multiple times the same note, and also different notes) and when i send it to preenfm2 over usb, i get the same stuck note 0. the notes have to be pretty short to trigger the behaviour. so it could also be that only very short notes trigger the fault.

373

preenfm2 and preenfm3 / Re: stuck note! was: aftertouch bug? (or general modulation)

« on: July 15, 2016, 10:33:01 AM »

just writing down my findings, sorry for all the messages.

i tried the same controller with a waldorf pulse and i cannot get any stuck notes from it. so it seems to be an issue with the preenfm. xavier, can you see any reason how very fast runs of notes could get a stuck note with midi pitch 0? i never send a value 0, but when i send a note off with pitch 0 from ableton, the note is released correctly, so it must be midi note 0 that is stuck...

374

preenfm2 and preenfm3 / Re: aftertouch bug? (or general modulation)

« on: July 15, 2016, 09:57:39 AM »

ok, getting a little further. it seems to be a very low stuck note. when i adjust gliding in a monophonic patch, every note glides from below. i disabled aftertouch on the controller and it is still happening. so i am now thinking it is more a very fast run of notes that somehow triggers this low note. if i send a note off from ableton live with c-2 value (midi note 0)  the problem disappears. will look further into this issue. maybe it is my controller that is somehow sending note 0 values, but i doubt it.

375

preenfm2 and preenfm3 / [Resolved in 2.05B4] stuck note! was: aftertouch bug? (or general modulation)

« on: July 14, 2016, 04:39:28 PM »

hi there,

when i modulate im* via aftertouch, after a while i can hear a zippering noise from the preenfm2 even when i don't play a note. applying aftertouch without hitting a note (yes i can do that with my controller) varies that noise. at that point also my modulation wheel (set to op* freq in the matrix) is able to change this noise...

has anyone seen/heard this behaviour? i'm on 2.03. this only happens after a while of playing and after extensive use of aftertouch (a lot of data).