Yes, though there are a lot of other variables with the speed of the caps you select and how much voltage you have left in the battery powering the Roll. I’m sure there’s a calculation you could do but that sort of thing is beyond me I’m afraid.
You do have some leeway to create weird joystick resistance values by applying extra resistors. If a joystick is just two potentiometers, in theory any of these series / parallel value change combos should work OK
https://www.allaboutcircuits.com/textbook/experiments/chpt-3/rheostat-range-limiting/
http://musicfromouterspace.com/analogsynth_new/HOT_TIPS/coarserangeadjust.html
@Rodrigo I’m looking at this for a project, comes with a handy little PCB: https://www.adafruit.com/product/512
Does anyone have an updated BOM for the Meng Qi 2017 Rollz-5 PCB? Every BOM I can find has lots of discontinued parts (all of the BOMs on MW as well as the BOM from Modular Addict). Thanks!
This is as close to one as I could find, someone was kind enough to send this to me. I think it’s pretty much all there. It was first time building something like this for me and I managed it so there’s hope for anyone! Soldering was the easy bit.
Meng qi rollz 5 (2017) - Blad1.pdf (42.1 KB)
Thank you kindly. I was thinking about subbing it out, but maybe I will take a crack at it. I have zero zilch nada soldering experience and usually am keen to stay well away from dangerous and/or hot things
Im crossposting this in case people missed it. Released last week. I think its more relevant here. Its a new Ciat album out for anyone interested. Its available on cassette and digital.
Its a lot more rhythmic than my other stuff. The rhythmic elements were mainly made using contact mics which were recirculated and manipulated in the Coco. Everything is built around that structure and the Sidrax/Tetrax fed in to build background sounds. So the Coco is used like a central mixer and workstation with different elements fed in faded out and relooped on the fly. So the album is pretty much coco, contact mic and sidrax/tetrax. I used a few different things with the contact mic. My favourites were the metal objects - a soldering iron holder, a metal dogbrush and scrapes on the table using a pomona cable.
heres some videos that gives you an idea how I work with Ciat stuff https://www.instagram.com/p/BQKgRjlDGlm/?igshid=tl17ot0smvo9 https://www.instagram.com/p/BQAN-ZjjHIQ/?igshid=1vueay58aqweh https://www.instagram.com/p/BQADuf4j57z/?igshid=11komtli9oqyd https://www.instagram.com/p/BP_178vjmXW/?igshid=15o6hfjh3b2bn https://www.instagram.com/p/BPcMjxMjr_r/?igshid=ilqdm5ot77th https://www.instagram.com/p/BHY2KrBDyYO/?igshid=ck6xdf2c5q44 https://www.instagram.com/p/BHOj5d1jXQn/?igshid=1oafqmtfe3axx
Also i now have Solar Sounder pcbs that arrived and have some extras available. Pics and videos can be seen in this post.
https://llllllll.co/t/fs-ww-ciat-lonbarde-paper-circuits-pcbs/23342
@pmj, sorry it took so long to respond. Here is an LTSpice plot of the CV out banana (orangeish) vs Pulse out Banana (green).
What’s the contact mic you’re using?
They are diy ones made by Leafcutter John
It’s the Piezo Preamp that made the difference and these ones I really recommend.
Awesome thanks, I thought they looked like LCJ ones—he doesn’t make them anymore unfortunately. Great tip on the preamp I’d be interested in giving on of those a go.
My current contact mic setup is one of these https://secure.schertler.com/en_IT/shop/pickups/basik-pro which I run through a Sound Devices Mix-Pre D sounds great but I’m always looking to get more out a contact mic, I wonder if those preamps will give a little extra. Not so critical with CL gear but Coco really works with those dry detailed signals.
I was looking at these too https://www.radialeng.com/product/pz-di but a bit more pricey.
Nice work btw
a bit OT, but I don’t see anything about power - this is a passive preamp?
even further OT, how does a passive pre actually work? I always thought of pres as a powered thing.
Powered with phantom power on the xlr side.
Bring your own high quality DI everywhere. No hassle with batteries because BigAmp’s circuit is powered with 24v/48v phantom power. The small form factor combined with the ease of use makes that every touring musician should have a BigAmp in their case or gigbag.
https://www.tritonaudio.com/bigamp-piëzo.html
ah, I totally read that but didn’t parse it, thank you!
So you’d have to enable phantom power on your mixer or whatever for this to work? Wouldn’t work with a line level mixer?
Yeah, you’d need an xlr jack and mixer that could provide the phantom power.
Peter Blasser shared a video about the Tocante Studworth, a DIY Tocante.
(Fruition or at least more evidence of Mobenthey/Ciat-Lonbarde (synthmall) thread)
And this on his IG:
“instructions will be scripted in SuperCollider”
Maybe an SC script to choose the scale you want and then get the corresponding capacitor values ?
Oh interesting idea. Whatever it is I hope it’s quirky and fun.
