Mobenthey/Ciat-Lonbarde (synthmall) thread

[t3h]

Peter Blasser will do a Tocante workshop in Berlin on Feb 9th 2019

A Tocante Workshop with Peter Blasser of Ciat-Lonbarde

[Rodrigo]

Little bit of a cross post from the //// pictures //// thread, but got a bone nut made for my Shtar:

Before:

After:

[Cementimental]

Did a quick recording of my aforementioned Lil Sidrassi

[Cementimental]

Someone on the noiseguide forum gear setups thread asked me for a review of the Dunst so might as well paste it here too in case anyone’s interested

• tbh it is a LOT more expensive than I’d ever pay for what it does, if it weren’t by Peter Blasser. But i’ve wanted to own one of his instruments for yearsss so i got it :3
• really interesting and useful module tho don’t get me wrong with quite a few ins and outs: basically theres’ a random-triangle-ish bipolar VCLFO that goes from realllly slow to a a little way into the audio range, a trigger/pulse out that matches that (fun for triggering indeterminate kick drums I find), a source of ‘dust’/crackle, a white noise source, two inverse-linked VCAs.
• beautiful object of course I like the raw-pcb bare copper aesthetic he uses with these.

Cons:

• the ‘Dust’ (which i mainly wanted it for) and the white noise outputs are really subtle/quiet! :-/ I still get nice stuff out of them by boosting it elsewhere in the patch but then again unwanted noise/interference if too much gain after them wish they were as loud as the triangle/pulse outs, maybe there’s some mod possible…

• you can’t use the 2 VCAs totally independently, they work in a connected way that i haven’t quite fully got to grips with (“If the left input is greater than right, sound goes out the “left out”. If right is greater than left, sound goes out the “right out”. The voltage amount of difference maps to loudness in these channels”) but anyway that’s by design and I can just use a normal VCA for normal VCA stuff.

• he sent it packaged with some stinky taxidermied bird’s wing which was a bit horrible tho it entertained the cats for a little while

• I got import taxed ordering to UK from USA. but that’s just luck of the draw.

The manual is worth a read - http://synthmall.com/ifm/ifmDUN.pdf

[Rodrigo]

Thanks for the review. I agree with all of that pretty much. Definitely his most subtle module.

I actually really like the weird/joined VCA things, so having an extra pair of them on the Dunst is a nice perk.

the ‘Dust’ (which i mainly wanted it for) and the white noise outputs are really subtle/quiet! :-/ I still get nice stuff out of them by boosting it elsewhere in the patch but then again unwanted noise/interference if too much gain after them wish they were as loud as the triangle/pulse outs, maybe there’s some mod possible…

This x 1000.

I don’t know nearly enough to go in there snooping around, but it would be great to have both of those outputs be significantly louder. The noise noise in particular is almost useless as it stands. Which is a shame since you have the built in triangle trigger which would make for a killer Plumbutter snare, but only if you go out into another module to boost the noise and then back again.

[emenel]

When I had one Peter told me to adjust the trimmer on the back of the pcb to get louder noise outputs, but it still capped out at not too loud.

If you haven’t played with that trimmer it could be worth trying.

[Rodrigo]

I’ve played with the trimmer, but that seems to just effect how busy the quantum noise is, not how loud it is. I did get it to somewhere I liked though, but yeah, still on the quiet side of things.

[Cementimental]

Oh cool, thanks for the info. Will have to look into / fiddle with that

[xenus_dad]

he sent it packaged with some stinky taxidermied bird’s wing which was a bit horrible tho it entertained the cats for a little while

Why is this under “cons”?

[Cementimental]

for that matter why did i have cons without a ‘pros’ section per se?

[Cementimental]

Just had a go at adjusting mine, turned it as far as it seemed to make any difference, now it goes all the way up to nice white-ish noise

Discovered (even before adjusting) that if i add positive CV to it you can take it up from crackles to noise. with high voltages it turns to white noise + gets suddenly louder! but beyond a certain point it then stops making sound at all.

[Rodrigo]

It’s been a while since I look at it, but if you run it through an oscilloscope you can see what’s happening more clearly. I think it impacts what the threshold for being considered “dust” is or something like that.

[Jojo]

Anyone made a fun patch for Max/MSP that utilizes hi and SHTAR’s functionality as a HID? I’ve just built the most primitive example - but would like to introduce the idea to some students at a guest lecture - and am supremely rusty with Max. I’d happily send a group of young people to your work / website, etc! It’d be a nice chance to share this site and other PB related community activity…

Doesn’t need to be like “general purpose tool” - it could just be a cool piece you made or the like. Thanks much!

[Rodrigo]

I wanted to build something like that, but then realized the fret data would be pretty complicated to parse (at least my understanding of it).

I’d love to be able to turn the data back into information that shows what frets (and combinations of frets) are being pressed, and then making a UI around that.

The rest of the data (butts/barres) would be pretty simple methinks.

I made this aaaages ago:

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-----------end_max5_patcher-----------

[Jojo]

Thank you Rodrigo! This is perfect. I have a SHNTH as well…

Yes, I posted here because when realized that I needed do a good chunk of hours detective work on the fret data in order to have it do anything that would be easily described in a class environment. But a patch similar to yours above is what I’d like to have for the Shtar - and I’ll try to get there eventually! Will post here when I do. Thanks much again.

[Rodrigo]

If you get something going, do post it on here. Or even if you figure out a bit of it, post it too and I’ll see if I can help out.

It’s been a bit since I look at it, but it looked like just a bit of maths and/or bit shifting (neither one of which is my strong suit!).

[mlogger]

I got some paper circuits PCBs made

[Rodrigo]

Man, it’s such a joy building them on PCBs. I have a whole mess of paper-paper circuits and between the hole punching, and running cables for longer sections, it can get really exhausting and tedious. I’ve been a few from PCBs and it’s so much better, especially since they were largely designed to go on paper, so nothing is crowded, and everything is laid out in an aesthetically pleasing way.

Looks like you’ve printed some of the more esoteric ones, so curious how you get on with those.

[mlogger]

It was the Conrad papers stuff - swoops, rando, piezo preamps and dogvoice I was really interested in as i already had a Rollz5. I also printed out others that hadn’t been widely available before, like 5 Star Brain, Swoop Spokes and Esoterica. Interesting to see what they do. The paper circuits PCB schematics are available on the Ciat website. You just need to convert to Gerbers. Sharing is caring. For people wanting to do this, here is the info.

Thanks to @dianus for the help with duplicating the gerber layers and whose photo I used in this thread.

Heres how :

Paper circuits can be found here http://ciat-lonbarde.net/paper/ and here http://www.ciat-lonbarde.net/TIMARACURRICULUM/TIMARATERIALS/cirques/index.html

Paper Circuits master legend here : Mobenthey/Ciat-Lonbarde (synthmall) thread

How to make Ciat Lonbarde paper circuits PCB’s.

These PCB’s are double layer with solder pads on the top and bottom :
download Peter B’s PCBs:
http://www.ciat-lonbarde.net/TIMARACURRICULUM/TIMARATERIALS/cirques/papers.zip
You will need to rename these files to .osm files for it to read.
Download this (Mac only) software https://www.osmondpcb.com/download.html
Open any of the .osm files that you have in that program.
After opening you need to export to Gerber file.
File - Export - Gerber Files
Press OK.
You get a message that says “Not all paths connected” just ignore and Press OK again.
Goto the folder were it’s exported (it will be in the same directory as your .osm files
and in a folder for example “GerberFiles_conrad_preamp”
Inside it are lots of little Gerber doc - they need modding from single layer to double layer.
Using a file manager (not Osmond) - duplicate layer 1, and mask 1 and rename them layer 2, mask 2 and add the proper extensions as per photo attached. Change all extensions of other files as per photo.
Zip that folder up.
I recommend you check the Gerber front side and backside in any free Gerber viewer first to check for any mistakes.
That zip is what you send to the pcb manufacturer.
I used www.JLCPCB.com
But you can use any.
Theres a review site at pcbshopper.com to choose which manufacturer you want to use.

If you know how to use Osmond I would also recommend you add mounting holes in the corners. Rollz6 also has an error - the 1uf non hairy capacitor is pictured the wrong way round.

[mlogger]

Regarding the Deerhorn and these unknown parts from top to bottom they are :

1. Choke Inductor. Theres 2 on the board - one is 1mH the other 10mh
2. 0.0001uf capacitor
3. 1N4001 diode
4. Photoresistor - any value
5. Adjustable Antenna / Variable inductor, not sure of the value