My build progress

[AriaSalvatrice]

My Arduino test boards are multiplying

Planning a Kosmo-sized PCB for the one above. Very similar to HAGIWO’s DCO, and should probably run them with small modifications, but meant for my own programs

With the board for control-rate experiments without an audio output circuit

[Kirtai]

Seems it’s between 8 and 32 poly depending on how many partials per sound are used.

I may still make one for my dpiano though.

[craigyb]

Yes I know, but any decent sounds needed 4, like the D50, D110 etc.

[Jos]

First demo run of my experimental stochastic pattern generator:

stochastic pattern generator, test run 01

[craigyb]

Nice sound, I’m building a sarcastic sound generator

[twinturbo]

I have one of those, she’s usually found on the sofa.

[d42kn355]

@CTorp ’s 3U adaptation of Quad VCA

[Jos]

I found a floor lamp left on the side of the road and thought I could make it usefull again, so I fired up the K40 and put on my creative cap.

[danbass]

No recordings yet, but I’ve got my first three modules making noise after building a MFOS power supply an an analog output bus board.

Also finished my first every SMD project, the Hyve. All works except for the F# notes, which isolates it down to a potentiometer, capacitor, or a resistor, as the G notes work just fine out of the shared oscillator IC.

Have to debug my first 1222, but I’ll leave that to another post, just excited that two projects are both starting to make noise.

[Jos]

I finished yet another offset generator / attenuverter. Every AR or ADSR deserves one.

Short demo of Offset-O-Matic v0.3

More info at my github.

[jaradical]

Resurrected my XVA1 interface project. There is some dumbassery involved (isn’t there just a little bit in each project?). Things are progressing nevertheless - now I have a platform to finish the rest of the interface code and hopefully get some tweakable sounds out soon:

[Album] XVA1 Interface build.

This is actually the third iteration. I started trying to build it on stripboard, but soon gave up. I then tried machining an aluminium enclosure for it, but that went completely pear shaped - so here we are.

Cheers

[craigyb]

Nice work, if you are not already a member there is an xva1 and xfm2 user group on Facebook that would be interested in seeing this.

[jaradical]

Thanks. Maybe I’ll give them a visit when it’s done (2027 at the current rate of progress ).

[craigyb]

Yeah, I understand, I still haven’t fully finished my dual XVA1 controller

[Jos]

I built a wavefolder after Yves Usson

Here is a short demo:

Short demo of wave folder after YuSynth

[Krakenpine]

I designed and built a two channel vca (with some stolen art). But wait, there more!
It’s actually also to channel mixer and crossfader or one channel panner. In the middle there is output that mixes both channels together and third CV that is sent to channel 1 as is and to channel 2 as inverted, so you can crossfade to different signals. It is summed with “normal” CV and Level pot, so you can use all three together.
Input 1 is normalled to input 2, so if you connect signal only to input 1, you can use outputs 1 and 2 as stereo output and pan the signal with the middle CV. And of course the normal CV:s.

This basically worked on the first try, but there was a small missing trace on the pcb, so the middle-CV didn’t affect the channel 2.

Well, there was easy kludge for that:

[analogoutput]

@Krakenpine

This basically worked on the first try, but there was a small missing trace on the pcb, so the middle-CV didn’t affect the channel 2.

(Will this design be publicly released?)

[Krakenpine]

Probably will when I design a bit more legal frontplate and make the schematics nicer looking.

This kind of missing trace should be impossible as it is so stupid and you have that Unrouted number staring you in the face, but… I probably moved some resistor after routing everything and managed to forget to fix that.

[analogoutput]

I have never done anything of that sort

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today

[Jos]

And there was light…