TouchOSC Jeannie Midi Controller

video upload by Rolf Degen

"Jeannie Midi Controller
DIY blog: https://www.sequencer.de/synthesizer/..."

Designing and troubleshooting a module | Instruō - ceithir

video upload by Instruō

"Hello and welcome!

👉 • Instruō - ceithir | Project Overview
(Here is an introduction to the ceithir with more detailed project background and sound examples.)

In 2015/16 Instruō began as a video project. Specifically a time-lapse of me designing the original troika module.
Ten years later, I’ve returned to that idea with ceithir, a winter holiday project I designed with video documentation in mind.

This video shows the process of ceithir's initial prototype design.
The full module interface was the first part of the process. That stage has its own video feature:
• Designing a Eurorack Module interface | In...

In this first hardware iteration I focussed on the core functionality of a single channel version of the filter. The majority of the circuit was tried and tested in the I-ō47 module. But I made several additions to the design for ceithir:
Temperature compensation of the core
Dedicated oscillator mode with stable peak amplitude
Stereo output utilising modulated phase shift to create discreet L/R
Additional mode morphing to incorporate band-pass response

I forged ahead with a hardware design where priority was not placed on manufacturability of the prototype. It is a two board layout requiring circuitry distributed between two parallel PCBs. This used many header connectors but provided a large "canvas" to lay out all elements of the circuitry in a sectional way that allowed for ease of navigation when it inevitably came to troubleshooting and fixing mistakes/making refinements.

CLICK FOR MORE »

LOADING CHRISTMAS SONGS INTO A SYNTHESIZER 2025

video upload by LOOK MUM NO COMPUTER

"Download full length previous recordings of the christmas songs for christmas background cheesy synth music here :- / 146526514
also kosmo comes for christmas vinyls! https://store.lookmumnocomputer.com/p..."

And Bandcamp:

CLICK FOR MORE »

PAiA 4783 Joystick Controller

Note: links to listings are affiliate links for which the site may be compensated.


via this eBay listing

"The PAiA 4783 Joystick Controller is a vintage synthesizer control interface from 1977, designed by the renowned brand PAiA. This analog joystick controller offers a unique and creative way to control various parameters of a synthesizer, providing musicians with a dynamic and expressive tool for their performances and recordings. With its retro design and classic functionality, the PAiA 4783 Joystick Controller is a sought-after piece of pro audio equipment for synthesizer enthusiasts and musicians looking to expand their creative capabilities.

In beautiful, almost new condition. See photos. Will ship with care."

CLICK FOR MORE »

Mos-lab & Scrotum Lab "The 2500 adventure"

video upload by batchas

"I skipped the part about making my matrix and the all process which took weeks and weeks behind the choice of pins instead of switches, but I might come back to it and do a video next year. Time will tell. Meanwhile here I'm looking back at the nice and positive moments I had with this 2500 clone, from receiving the modules up to the latest patch I did this year."

Automatique LFO Synth

video upload by Tim Kaiser

New Open Source Virtual Pipe Organ Project: Rusty Pipes

This one is in via DS:

"Hey Matrixitians!

I'm writing in to announce a new MIDI-controlled Virtual Pipe Organ software called "Rusty Pipes".

It's a sample-based organ synth with support for GrandOrgue and (unencrypted) Hauptwerk sample sets. It features 32 bit internal audio mixing, full MIDI support with extremely flexible channel routing, integrated audio and MIDI recording of performances, convolution reverb, and an innovative sample streaming mode that makes it possible to play very large sample sets with a minimal amount of RAM, yet without increasing latency!

Other unique features include a REST API for things like pulling stops - great for people who like to build physical consoles - and optional text mode support (via Ratatui) which makes this ideal for running on headless setups or on a RaspberryPi.

Rusty Pipes is a clean-room implementation written 100% in Rust, available free and open source under the GPL v2. Version 1.3.0 supports over 20 languages including Latin and Klingon, and is available for Linux, Mac and Windows. Debian and Arch (AUR) packages are provided as well.

Project page
Downloads

There's a bunch of sample recordings on the project page, but here's some standouts:
https://playspoon.com/files/RustyPipes-Vierne-Symphony-No2-Finale.ogg
https://playspoon.com/files/RustyPipes-Bach-Klavier_Uebung_BWV-669-Strassburg.ogg

Stay loud!"

Kraftor hosting Nexus

video upload by Polaxis

"Sentence prepared with https://www.polaxis.be/nexus-serial-m...
and triggered via MIDI using a custom MIDI keyboard designed by https://learn.adafruit.com/usb-keyset"

Info on the USB Chorded Keyset #3dprinting #circuitpython
video upload by Adafruit Industries

"Build a 3D printed USB chorded keyset inspired by the original Doug Engelbert "Mother of all Demos" keyset from the 1960's. This 5-finger keyset lets you type without moving your hand, entering full words and phrases by pressing multiple keys simultaneously as a chord."

Szumofon. Шумофон.

video upload by VladimirRadiomay

"Звуковой инструмент Шумофон. С добавлением тональности.
Когда-то в польском журнале Радиоэлектроник, в 1984-м году была
опубликована схема клавишного инструмента Szumofon.
Потом её опубликовали в журнале Радио. (1985. N10).
И вот по идеям этого Шумофона сделан такой инструмент.
Как соло и отдельно, он вряд ли самодостаточен и интересен, но с ревербератором
и в комплекте с какими то другими инструментами и для эффектов в какой то композиции
вполне может быть использован."

Googlish:

"The Szumofon sound instrument. With added tonality.
Back in 1984, the Polish magazine Radioelektronik published a circuit diagram for a keyboard instrument called the Szumofon.
Later, it was published in the magazine Radio (1985, No. 10).
And this instrument is based on the ideas of that Szumofon.
As a solo instrument, it is unlikely to be self-sufficient or interesting, but with a reverberator and in combination with other instruments, and for effects in a composition, it can certainly be used."

Noodling with reSEMble

video upload by Randy Piscione

"PM Foundations recently re-stocked a limited number of reSEMble PCB/Panel sets, and this may very well be the last time. If you’re unfamiliar with reSEMble, it is a tribute to the Oberheim SEM, but more of an SEM 2.0. Have a look at the other relevant videos on my channel for more sounds and info. If you want to build a reSEMble, go here: https://www.tindie.com/products/pmfou...

This is not the most visually exciting video, I was really more interested in demoing the sound. reSEMble provides the leads, odd percussion and sound effect bits. Drums are courtesy of an Alesis SR-16.

The first part of the video (first verse I suppose) uses the reSEMble in a configuration that duplicates the SEM – two VCOs, LP VCF, 2 EGs and a triangle LFO. Bass for the verses is from a Behringer Minimoog and a custom-modified Behringer TD-3. Chords for the verses comes from a 1980 dual manual Prophet 10.

The first chorus adds a third VCO and sine LFO. Bass is provided by a Minimoog (first re-issue) and the chords are again from the Prophet 10. The second verse brings in the wavefolder. The second chorus is similar to the first. The odd percussion and sound effect stuff bring in some audio rate exponential FM. The final chorus uses the wavefolder with the VCOs mixed in."

Eurorack Panel Designer by Ratpi Studio

video upload by Ratpi Studio - no audio

"Ratpi Studio is a non-profit association focused on open-source and community-driven creative tools: https://ratpi-studio.fr/

One of their projects is Eurorack Panel Designer, a free open-source tool for the modular synth community: https://eurorack-panel-designer-oss8.vercel.app/"

Fixing A Cute Synthesizer - Schober Tunesmith

video upload by LOOK MUM NO COMPUTER

"Another oddity from the past!
Download the sampler VST insterument! a whole lot more! and support these projects whilst you are at it here! :- / tunesmith-sample-140168907
Also full version of 'oh i do like to be beside the seaside'
Which also supports ‪@THISMUSEUMISNOTOBSOLETE‬ "

Casio FZ-1 – Installing the New OLED Display Kit

video upload by EMW Synthesizers

Addtional EMW Casio posts

"INFORMATION

The project works perfectly for normal use of the FZ-1, FZ-10M and FZ-20M. All menu screens, editing pages, sampling functions, parameters and general operation display correctly. Only a few fully graphical screens, such as Hand Drawing, Sin Synthesis and Graphic Envelope, may show minor pixel irregularities. This does not affect usability in any way; these functions continue to work normally and the issue is purely visual.
As I no longer have time to continue development, I do not plan to refine these small graphical details. Even so, the kit leaves the FZ fully usable, which is exactly what allowed me to bring my own FZ-1 and FZ-20M back to life and use them normally again.

FZ-1 Kit

For the FZ-1, we supply a complete kit, including:
A dedicated support with the logic board.
A second support with the new OLED display that fits perfectly into the original display mounting position.

Installation requires no soldering and no special skills. The kit uses the original FZ-1 mounting screws, and the entire installation can be completed in under 20 minutes.
Please watch the FZ-1 installation video on our YouTube channel for a full step-by-step demonstration.

FZ-10M and FZ-20M Kit

For the FZ-10M and FZ-20M, we supply a single integrated assembly including the support, logic board and display. This assembly fits perfectly into the original display location of the module.

Installation is very simple, requires no soldering, and typically takes around 15 minutes. The process is also demonstrated in the installation video available on our YouTube channel.

Pricing and Ordering

The price for the kit (logic board, display, supports and cables) is US$249.00 + shipping.

CLICK FOR MORE »

MFOS Weird Sound Generator WSG / 01 Analog Drone Synth

Note: links to listings are affiliate links for which the site may be compensated.


via this eBay listing

Demo in the listing previuosly posted here.

"PLEXIGLASS CASE (BLACK)
AND POWER SUPPLY (INCLUDED)

MODs: CV 1-CV2-GATE IN - TRIG OUT 1 - TRIG OUT 2

Weird Sound Generator (WSG acronym) is a synthesizer capable of many different applications:

from noise generator to dronemachine

originally designed by ray wilson/music from outer space

The interaction with numerous controls panel allows endless combinations and the chance to create soundscapes unimaginable.

INSTRUMENT FULL ASSEMBLED, TESTED AND

READY TO USE!

6 Oscillators in frequency modulation,
2 waveforms
1 lowpass filter
For a total of:
11 controls with knob
1 volume control
7 selection switch
To control it via keyboard or synth equipped with CV
and GATE:
2 inputs Control Voltage (CV)
Gate 1 input
2 trigger out
DIMENSIONS (cm) 26 X 16 X 3
Case Plexiglas etched
1 output jack mono 1/4 "
Power button (on / off) with LE"

CLICK FOR MORE »

Synth:Bit – 16‑Note Micro:Bit Synthesizer Keyboard Module with OLED Display

via this eBay listing

"Synth:Bit – 16‑Note Micro:Bit Synthesizer Keyboard Module with OLED Display, Battery Pack & Audio Jack, Lego‑Compatible Base, Matrix Inputs, Jumper Pins for Expansion

16‑Note Synthesizer for Micro:bit — turns your Micro:bit into a full octave keyboard (16 inputs in a 4×4 matrix) for creative music projects and experimentation.

Integrated Audio Output & Battery Pack — built‑in audio jack to hook up a speaker and a portable battery pack so you can use it anywhere.

OLED Display & Intuitive UI — clear screen interface for visual feedback, settings, and control of synthesizer parameters.

Lego‑Compatible & Breadboard Friendly — board spacing fits LEGO bricks; jumper pins allow easy breadboard or external keypad integration.

Expandable & Open Source — supports expansion via jumper pins, external keypads, or custom builds; program via MakeCode, Python, or microcontroller tools."

CLICK FOR MORE »

Bare Metal Firmware for the PiPicoFX

video upload by linsoft23

"This video is all about software development for the PiPicoFX. It is meant as an overview of the whole firmware without going into too much details in each section.

Intro to serial communication
Introduction 0:00
Device Overview (with sound demos) 0:48
Programming Languages 4:50
IDE's 5:52
Building software 6:44
Debugging 7:54
System Overview 9:06
General program flow 11:08
Interrupts 14:54
Poor Man's Multitasking 18:54
DMA 19:45
Double buffering, changing presets 20:52
Main Data structures 22:37
User Interface 23:57
Migration to Cpp, Outlook 27:07
Tools 29:07
Font and Graphics 30:39"

10 step Sequencer - Monotron/drone/pedal by Psychiceyeclix

Note: links to listings are affiliate links for which the site may be compensated.
video upload by Psychiceyeclix

"10 step sequencer, controlling cutoff on monotron, speed on pedal, oscillator on drone."

via this Reverb listing

"This 5v sequencer was bought new and lightly used in my smoke free studio. It's in full working order and excellent condition. Has a 1/4 CV output and comes with a 5v power supply.

Different combinations of steps can be made by switching steps on and adjusting the knobs. They all affect each other so there are random results in the outputted sequence. Starve knob - slowly turn knob until effects are heard in the sequence. Hold button will stop sequence whilst pressed."

Check out this USB-powered MFOS Echo Rockit!

video upload by Musical Miscellany

"I had an idea to make a version of the popular MFOS Echo Rockit circuit that was portable and ran on USB power. Thanks to a few readily available parts and some DIY ingenuity, I assembled the Pocket Rockit.

Synthrotek USB Power - https://store.synthrotek.com/USB-Powe...
4MS Pod20 Case - https://4mscompany.com/p.php?p=896&c=9
jazzfunkcat on Reverb - https://reverb.com/shop/viktorss-gear...

Buy Me a Coffee: https://buymeacoffee.com/musicalmisce..."

See more videos about Tiny Synths here:

Progress on the Roland Super JX 10 Vecoven V4 editor build.

video upload by Craig Barnes

"I've finally managed to lay everything out on the bench and install the voice boards and midi board into the CME UF-70 chassis."

Cosmolab: Rapid audio hardware prototyping #faselunare

video upload by Floyd Steinberg

"The #cosmolab by #faselunare ( https://sndmt.link/cosmolab-fs ), based on the #daisyseed #mpu, is a development board for audio projects: synthesizers, effects pedals, sequencers, modular gear, samplers, groove boxes - whatever you can think of. In this video, I walk through the functions and features and create a mod reverb with this board.

Table of contents:

00:00 the problem to the solution
00:37 hi, what is this?
00:58 hardware overview
02:18 how to use: installing the examples
03:21 examples: euklidean drums
03:38 pluck echo
04:40 music box
05:18 physical modeling synth (strings)
05:49 single oscillator poly synth
06:14 the development environment
06:38 or use plugdata
07:23 creating and compiling a mod reverb effect
09:33 sound demo for my mod reverb effect
10:47 conclusion
11:20 liKE ANd sUBscrIBe

Links:
Web page: https://sndmt.link/cosmolab-fs
Plugdata: https://plugdata.org/

HÄLP ZIS CHANNEL
https://www.patreon.com/floyd_steinberg
https://floydsteinberg.gumroad.com/
https://floydsteinberg.bandcamp.com/"