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/"

Synth Portal Steampunk Modular Powered Synthesizer w/ 8 modules

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

via this eBay listing

"Hand built,custom Steampunk Modular Synthesizer with power & 3a power brick.

Width: 87 hp
Zlob- dual VCO- 6 outputd & 2 inputs
Frequency Central- Little Melody Sequencer
Cubu clock generator with 3 probability outputs
Zlob-Skew-fade LFO with 3 outputs & cv input
3 ch. passive mixer
Zlob-Diode Chaos with 3 chaos outs & trig.
Hive-passive mult-1x10,2x5
Zlob-2 ch. VCA & Mixer
patch cables,mounting screws, power cables & 3a power brick
Tactile-feel controls giving tweaking a fun dimention"

CLICK FOR MORE »

Mystery Synth in Norwegian Vintage Synthesizer 70's and 80's Dreams Full Album

video upload by Kaj Roger Willumsen

This one was spotted and sent in via Ivan Trajkovic aka dejayiwan. Note the video is from 11 years ago so not AI. Could be a render for a soft synth or other though. Could be DIY, but note the touch panel or screen. According to the YouTube comments "Picture is only for cover. Not sure which synth it is. Will try to find out." There was no follow-up that I could find after that aside from mention the album itself mainly features Arturia. You can find a list of hardware synths and some harware synth spotting in this previous post featuring Dreamland. If you know what that blue synth above is, feel free to leave a comment at the bottom of this post, or send email to matrixsynth at gmail.com and I'll update the post with anything definitive. BTW, you can find additonal Mystery Synths via the Mystery Synths label here. There have only been 23 including this one, to date, since 2005. Update: answer in the comments of this post below. That was quick.

Here's the video description for the above:

"Norwegian Vintage Synthesizer 70's and 80's

Is now available on.

https://itunes.apple.com//artist/kaj-...

Spotify: https://play.spotify.com/artist/2MO67...

Some songs are made for Norwegian television documentary.

1.Dreamland----- 0:00
2.Saltfjellet ----- 4:32
3.80's movement -- 7:06
4.Nordlandsbanen- 10:31
5.Voyager 2--------- 14:31
6.Dolphins song---- 18:00
7.Kepler Telescope--21:53
8.Deep Impact------ 26:09
9.Reisen--------------- 29:15
10.Mariner 2----------33:40
11.Mars------------ 38:00
12.Venus------------- 40:49
13.Supernova----- 45:20
14.Tones Comforder--49:25
15.Jupiter------------ 52:40
16.Home--------------- 57:34
17.Back to 80 century- 1:01:14
18.We fly out of place--1:05:10
19.Minded Traveling--- 1:08:00"

Herbs and Stones Seeds - mini noise synth

video upload by Herbs and Stones

"Seeds is a DIY noise synth that will be available to build at various workshops."

https://herbs---stones.com/seeds-work...

Seeds is a portable, battery-powered noise synth.

Its operation is based on the improper use of primitive CMOS digital technology: by forcing a linear output from an integrated circuit that operates using Boolean logic, by draining it of current and pushing its inputs to their limits, organic, unpredictable, and never-replicable sounds are achieved.

Seeds is an instrument with a vast array of sounds, designed for research and experimentation.

Technical Specifications:

Power: 4 AA batteries (included in the kit)
Output: Stereo TRS minijack

CLICK FOR MORE »

DIY Minimoog Inspired Synth | A Teensy Powered Tribute

video upload by Moby Pixel

"In this video, we’re building a Teensy-powered synth inspired by the iconic Minimoog Model D, and exploring what made the original design so legendary. We’ll walk through all-the-things: oscillators, mixer, filter, envelopes, hidden features, presets, the Teensy’s USB audio setup, and how Bob Moog’s Minimoog helped shape modern subtractive synthesis.

This is my biggest project to date, and I couldn’t be happier with how it turned out! The Teensy 4.1’s built-in USB audio is sending power, MIDI, and audio over a single cable. What a time to be alive, haha! All code and build files are available on GitHub if you want to make your own. Cheers!

GitHub: https://github.com/NickCulbertson/Min...

A 6-voice polyphonic virtual analog synthesizer built with the Teensy 4.1 microcontroller, inspired by the classic Minimoog. Features comprehensive synthesis with USB audio/MIDI and intuitive menu control.

Key Features:
6-voice polyphony with 3 oscillators per voice (18 total)
6 waveforms per oscillator
Noise shared white/pink noise
24dB Moog-style ladder filter with ADSR envelopes
Independent LFO with pitch/filter/amp targets
Macro knob system - remap filter knobs to LFO controls
USB Audio + MIDI - single cable to computer
20 hardware encoders + LCD for real-time control
20 Presets - 80s Brass, Saw Keys, Bass sounds, Pads, and more
Multiple play modes - Mono, Poly, Legato with glide

Parts List:
Teensy 4.1 – https://www.sparkfun.com/teensy-4-1-w...
Menu Encoder – https://www.amazon.com/Taiss-KY-040-E...
Other Encoders – https://www.aliexpress.us/item/325680...
LCD 2×16 – https://www.amazon.com/Hosyond-Displa...
Knobs – https://www.amazon.com/Taiss-Silver-R...

Chapters:
0:00 The Minimoog
3:00 MiniTeensy Synth Build
6:32 Minimoog & MiniTeensy Designs Explain ed
9:26 Presets Demo
12:25 SUBSCRIBE! (maybe?)

Thanks for Watching!
Nick
Moby Pixel"

Tobinksi Standalone Mono Synth

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

via this Reverb listing

"Only a handful made. Tobinski mono Synth (formerly Danny sound). Sounds incredible. Everything works accept 1 led needs changing. Comes in its own carry case. Cables included.

Modules overview:

OSC 1- Electronotes EN129 Linear Through Zero Oscillator
OSC 2 -Buchla 258 Oscillator
ENVELOPE 1 - Roland M140 Envelope Generator
ENVELOPE 2 - Electronic Dream Plant (EDP) Wasp Filter Control Envelope
ENVELOPE 2 Electronic Dream Plant (EDP) Wasp Filter Control Envelope
ENVELOPE 3 Electronic Dream Plant (EDP) Wasp VCA Envelope
TIMBRE (TMBR) Buchla 259 Timbre Generator Module
LOW PASS GATE (LPG) Buchla 292 Low Pass Gate Module
LOW PASS FILTER (LPF) Moog MiniMoog Low Pass Filter Module
VOLTAGE CONTROLLED AMPLIFIER (VCA) Moog MiniMoog Voltage Controlled Amplifier
MIDI TO CV Oakleysound 3031 midi to CV"

Note this appears to be the first post to feature Tobinksi.

CLICK FOR MORE »

Stromer Mutroniks Drumvoice 2000

video upload by Stromer Mutroniks

"My perfboard 808 type a thing"