ciat lonbarde: decoding the rablolz (plumbutter)

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sgnhh
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ciat lonbarde: decoding the rablolz (plumbutter)

Post by sgnhh » Fri May 04, 2012 2:08 pm

so peter has posted the pcb for the new labrolz. i emailed him to inquire about other instruments that could have vca+mixing capabilities, and he mentioned that the new rolz will have vca, vcf, and stereo mixing along with the sound generator.

i've had some fun trying to interpret the pcb and wondered if anyone else would like to join in. i haven't used the rollz5 or roolz gewei, so i don't know what exactly each section is and can only pick out components by a/b'ing it with the cocoquantus pcb.

here's the labrolz:
Image

going right to left: the right-most side is the 5 channel stereo mixer. it's unclear to me whether these are node-style or 1/4" inputs. i'm assuming nodes, since peter said that there are 7 1/4" inputs on the front of the instrument.

i believe the row of 10 circles are nodes, but can't tell if they're ins or outs.

then, top to bottom, there are a series of four node/ pot combinations (five or six nodes to one pot) with the fifth one at the bottom have either two pots to the five nodes or one pot with an extra pot for ???. no clue what this could be, but the count doesn't seem to match the roolz gewi.

the following sections are flipped and mirrored: four pots, seven nodes, one DPDT switch. i think this may be 2 out of the 4 center sections of the roolz gewei.

center: six nodes, four pots. could be based on the right and left edges of the roolz gewei.

potential other 2/4 center sections of roolz gewei, identical to previous ones.

four pots, nine nodes, two ??? things (circles with thin circle and satellites around them), and one DPDT switch. can't match this pattern to anything.

left-most side: deerhorn? decoration?

what do you guys think? i know a few of you have greater experience with his circuits. i'm wondering what the small banks of 4x4 dots are, along with those two little circular satellites on the left side.

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bartlebooth
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Post by bartlebooth » Fri May 04, 2012 2:15 pm

you're close :)

yes, left side is deerhorn

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Post by sgnhh » Fri May 04, 2012 2:39 pm

i was hoping you'd spill some secrets! glad to hear there's a deerhorn on here.

care to share anything further about the vca/ vcf stuff? is the roolz gewei/ rollz-5 made up of a series of vcfs?

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Post by HexEnduction » Fri May 04, 2012 3:05 pm

All the purple circles are banana jacks. :nana:

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Post by bartlebooth » Fri May 04, 2012 3:22 pm

well the one thing i can tell you about it is its going to be freakin' incredible! i don't want to spill any beans but just to summarize what peter's already said publicly about it - a re-design of the roolz-gewei featuring voltage control of all parameters including the geometry rollz themselves, inclusion of a new module, the man with the red steam, for snare and random dust, inclusion of a 5-channel stereo mixer, analog math... there's a lot lot more but i'd rather wait until peter himself unveils it.

Actually on the classic rollz/roolz all three sound generators (gongs, avdog and ultrasound) utilize filters in their designs. as mentioned the new labrolz will open these up for voltage control to a much greater extent.

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Post by sgnhh » Fri May 04, 2012 3:28 pm

very cool. i suppose that the circuit next to the deerhorn may be the new design. the inclusion of the stereo mixer is good, especially since there are so many sound options now.

did the sound generators on the old rollz have filter inputs, or were they just used to create the sound?

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Post by bartlebooth » Fri May 04, 2012 3:37 pm

you can use the ultrasound filters on the roolz-gewei by patching, say, a sidrazzi output directly to the node. the other modules just have trigger inputs for the rollz pulses similar to the 'trig in' on the serge VCFQ

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Post by sgnhh » Fri May 04, 2012 3:48 pm

i see. sounds like a lot of fun, and i can't wait to see how this turns out.

i have to say, despite a lack of fanciness, i'm most charmed by the stereo mixer. if it was a little larger, even 8 channels, i'd be extremely excited. i would love an 'in-house' way to mix all of my c-l instruments together.

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Post by subterryanean » Sat May 05, 2012 3:39 am

There's a couple sneek peak videos of it on his youtube page, it sounds great so far!

sandyb

Post by sandyb » Sat May 05, 2012 1:09 pm

:love:

i think i need one of these when they're ready.

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Post by sgnhh » Sat May 19, 2012 4:52 pm

bartlebooth wrote:you can use the ultrasound filters on the roolz-gewei by patching, say, a sidrazzi output directly to the node. the other modules just have trigger inputs for the rollz pulses similar to the 'trig in' on the serge VCFQ
maybe you can expound on this a little-- peter has said that there will be direct input into the filters on the lab. how many filters were in the roolz-gewei?

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Post by bartlebooth » Sat May 19, 2012 5:03 pm

sgnhh wrote:
bartlebooth wrote:you can use the ultrasound filters on the roolz-gewei by patching, say, a sidrazzi output directly to the node. the other modules just have trigger inputs for the rollz pulses similar to the 'trig in' on the serge VCFQ
maybe you can expound on this a little-- peter has said that there will be direct input into the filters on the lab. how many filters were in the roolz-gewei?
in the roolz-gewei by patching directly to the input nodes for the ultrasound you can access the internal filters and also use the knobs to control the filters' frequencies. so you can patch your tetrazzi for example into ultrasound filters but you'd need to make some 1/4"-to-alligator cables. for the labrolz peter is greatly expanding the CV options so not only will you have CV control of the filter parameters but also aux inputs on 1/4" jacks for the various modules (including the gongs and avdogs which both utilize resonant filters in their designs).

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Post by sgnhh » Sat May 19, 2012 5:21 pm

yep, i was aware of the aux inputs-- it's a great idea--but i'm curious how many resonant filters are in the instrument.

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Post by nlaudadio » Sat May 19, 2012 5:26 pm

I love how clustered/rhizomatic the PCB looks--incredible design.

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Post by subterryanean » Tue May 22, 2012 12:41 am

The Rollz 5 is played by patching the "roll nodes" into three different filters. They really arn't typical resonant type filters. The controls are more esoteric, usually one knob for decay. The Ultrasonic filter has a cutoff knob, it sets the point at which the radio ultra sound is mirrored into audio. There's the Gong- which is a low plucked tone, the Ultrasound which hydrodynes supersonics, and the AVDogs that bark subsonic.

It's best to think of them as Rollz Tranlators, rather then filters.
sgnhh wrote:yep, i was aware of the aux inputs-- it's a great idea--but i'm curious how many resonant filters are in the instrument.

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Post by sgnhh » Tue May 22, 2012 7:44 am

peter suggested to me that they'll be usable as normal filters on the labrolz, so ... ???

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Post by sgnhh » Tue May 22, 2012 7:45 am

if that doesn't work out, i'll have to try and find a stuber

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Post by subterryanean » Wed May 23, 2012 1:12 am

Yah, I'm just talking about the old school Rollz 5, which the Gewei is two of.

The Stuber looks great! I love the idea of running the oscillator that drives the filter through a binary divider for self fuckt modulation. Similar to the Cocostuber, but that uses the delay clocks instead.

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Post by dude » Thu Jun 14, 2012 12:56 pm

[video][/video]

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Post by bartlebooth » Thu Jun 14, 2012 12:57 pm

there she is!

be sure to check the liner notes, they are a good read

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Post by dude » Thu Jun 14, 2012 1:01 pm

wait, where are liner notes available?

sandyb

Post by sandyb » Thu Jun 14, 2012 1:05 pm

dude wrote:wait, where are liner notes available?
here you go my young friend:

http://www.ciat-lonbarde.net/plumbutter/

sandyb

Post by sandyb » Thu Jun 14, 2012 1:08 pm

i forgot.

:yay: :hyper: :goo: :sb: :party: :tu: :banana: :banana:

i definitely need one of these!

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Post by dude » Thu Jun 14, 2012 1:09 pm

fuckzna

and thnkx sandy, the blank appeared in like 3 fucking days!

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Post by dude » Thu Jun 14, 2012 1:15 pm

wow, i cannot wrap my head around this. why bananas at this stage of the game? seems odd that it won't incorporate directly with the other stuff without adapters. it looks gorgeous though. the colors are great!

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