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Wicked design files are open
A while back, I shared a post about a unique MIDI controller I designed called Wicked . The name is inspired by the layout it uses, known...
Leonardo
Dec 15, 20242 min read
611 views
0 comments

I clearly need more BETA testers
The past two releases of the Freak firmware have not been of the quality I expected. Both versions 3.4 and 3.5 had issues because I...
Leonardo
Nov 15, 20242 min read
460 views
3 comments


Freak Firmware Update: Move from Version 3.3 to 3.4
EDIT: version 3.3 and 3.4 are unstable. Avoid installing it. Use instead 3.2 or wait for 3.5. Today, we shipped the last module of...
Leonardo
Nov 12, 20242 min read
544 views
1 comment

Making the Synthesizers.com modules
A few months ago, I received an intriguing message from Mike Graham who works at Synthesizers.com. He asked if I could port some of their...
Leonardo
Oct 25, 202419 min read
3,315 views
10 comments

Learn Electrical Engineering with Vult
Over the past six months I have been working on developing an Electrical Engineering course for the Wolfram U platform. Wolfram U offers...
Leonardo
Jun 14, 20243 min read
1,227 views
0 comments

Exploring the new Chorus and SEM filter features in the Freak firmware update
It's been a while since the last update to the Freak module. Initially, I believed version 3.1 would be the final update due to space and...
Leonardo
Apr 11, 20242 min read
735 views
0 comments

Anima and Feigen available on request
Anima and Feigen modules have been out of stock for a while. The main reason? Well, these modules rely on a Teensy LC board instead of...
Leonardo
Apr 6, 20241 min read
695 views
0 comments

New Firmware for Caudal
We have a new version of the Caudal firmware available. This version is a bug fix release. The main fix is that Caudal will work better...
Leonardo
Jan 27, 20242 min read
202 views
0 comments

Caudal user manual and firmware
There's an initial version of the Caudal user manual. You can find it in the Caudal page https://www.vult-dsp.com/caudal I aimed to...
Leonardo
Nov 18, 20231 min read
153 views
2 comments


Is Nurage-VCA failing for you?
I have received reports about the NURAGE-VCA mode getting stuck in some of the Freak modules shipped recently. Unfortunately, right now...
Leonardo
Nov 17, 20231 min read
441 views
1 comment


Caudal is making some chaos
If you have been reading this blog, you may know that I have made multiple prototypes of Caudal. The first revision I made was in 2019...
Leonardo
Oct 28, 20236 min read
935 views
0 comments


More prototypes, more Freaks
When I started my Eurorack journey, I made a deliberate choice to design the majority of modules for my rack myself. The motivation was...
Leonardo
Jun 13, 20233 min read
1,154 views
15 comments

Wicked Keys
I love synthesizers. But for me, most of them have a big problem: they have keys. I have been playing guitar since my early teen years. I...
Leonardo
Sep 29, 20228 min read
1,603 views
2 comments


Freak out now
I have mentioned before that I have had a hard time to produce the Freak filter due to the semiconductor shortage. The parts used by the...
Leonardo
May 2, 20224 min read
1,326 views
4 comments

Designing analog modules is fun, but digital are simpler
Some months ago I posted about my efforts on making modules that are less affected by the semiconductor shortage. It is already 2022 and...
Leonardo
Mar 4, 20229 min read
1,043 views
0 comments

Fuser: A simple but effective module
The past month I decided to redesign my Eurorack case/stand. Previously, I have been working with a couple of small cases that I made out...
Leonardo
Feb 7, 20222 min read
787 views
0 comments

Modeling the 808 kick drum
I have published on the Wolfram blog a post that covers in detail the modeling of the 808 kick. This is the model that I used for the VCV...
Leonardo
Dec 29, 20211 min read
374 views
1 comment

New Freak firmware fixes screen problems
Over the course of the Freak existence I have occasionally received reports from testers that the Freak screen sometimes does not turn on...
Leonardo
Dec 23, 20211 min read
325 views
1 comment

Making of the VCV Drums
Here I wanted to cover the design philosophy and the process I used when making the VCV Rack Drums sound engine....
Leonardo
Sep 13, 20217 min read
5,580 views
4 comments


Tips for building DIY modules (plus Wolv update)
Even when I have been doing electronics most of my life, it has been only a few years of manufacturing modules. A few things I knew...
Leonardo
Jun 20, 20216 min read
820 views
2 comments
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