monophreak EMMY1OH1 Software Editor for the Roland EM-101 Preset Desktop Synthesizer

via Monophreak

"With the right firmware mod (that’s right – no mysterious hacky soldered in dials) for old board Roland EM-101 machines, the EM-101 is no longer a preset machine. Often billed as a cutdown Juno 106 restricted to just 24 presets, this box previously had some interesting uses but didn’t really deliver as an anlogue beast in my arsenal. It was too restricted. Until now. Due to the amazing work by Ryan (Plutoniq), the EM-101 has been give a new lease of life and transformed into a strong addition to my music making and since the parameters can now be controlled over midi CC, I have written an editor to load in presets from the Juno 106 and MKS-7, extended to a new Roland EM-101 format with naming and created a preset saving system and librarian for patch recall. It’s not a Juno 106 but it is a very nice sounding a machine with it’s own character sharing a lot of parallels. If I have understood correctly (there could be inaccuracies!), it has a M5232RS tone generator chip with 36 (I think) waveforms that are beautifully shaped by Roland analogue fitters. A good example is the IR3109 VCF filter, found in a the Jupiter 8 or M5241L VCA found in the MKS-70. If you look at the chip list, there are lots of shared electronics that overlap between Junos, Juipter and other quality Roland gear of it’s time, giving it character. Notably, the MN3009 and MN3101 chorus chips shared by the Juno 106 chorus. It has interesting analogue effects on board but the chorus particularly shines due to the much greater CC control (as you can see from the screenshot). That chorus is gorgous, adds that analogue sheen and processing. I spent last night building up a preset bank for the EM-101 to release with the editor (and check bank functionality) and got lost inside this little beauty."

If you forget the EM-101 you can find some pics and demos in previous posts.

This one is in via monophreak in the comments of this post and this post.

ALM Introduces QUAID GIGASLOPE - Quad Multimode Modulator

video upload by ALM TV

Chapters: 0:00 - Intro 0:59 - Envelope Mode 2:16 - Slope Range & Trigger Inputs 3:33 - Loop Mode 4:52 - Step Mode 6:04 - Quantiser 7:00 - EOS/EOC 7:36 - Assigning CV - Reset 8:32 - Assigning CV - Parameters 10:27 - End Jam 11:21 - Outro

The QUAID GIGASLOPE is a four-channel multi-mode modulator, with each channel outputting a variable staged slope that can act as a complex envelope, flexible LFO, or step sequence.

Each slope can contain up to 13 stages, which may be independent or overlap with other stages. Slopes can be triggered or run freely, with both manual and CV control over each stage’s level, duration, and curve. The output range of each slope can be set and optionally quantised to musical scales. Trigger outputs are available at the end of each stage and at the completion of a slope.

The QUAID GIGASLOPE builds on our earlier Megaslope module, expanding the idea of a hands-on, menu-free, jam-friendly complex modulator. With four channels, it easily covers standard envelope duties, quantised sequencing, and LFO tasks, while its design also encourages more experimental use through overlapping slopes, self-modulation and cross-channel interaction, leading to more distinctive, unexpected, and improvised results.

Feature List

Quad multimode modulator with complex Envelope, LFO and Step Sequencer modes.

13 modulation stages shared or split between slopes.

Per stage dedicated Level, Time and Curve controls.

Per slope Quantiser with 19 different scales.

Selectable output ranges of ±5V, 0-5V or 0-2.5V.

Assignable ‘EOC’ (End of Cycle) or ‘EOS’ (End of Stage) trigger outputs.

4 freely assignable CV inputs.

AXON CV expander support for 4 additional CV inputs.

Fun, performance oriented interface, well suited for happy accidents.

All states preserved accross power cycles.

USB-C for quick and easy ‘drag and drop’ firmware updates

Skiff friendly with reverse power protection.

2 Year Warranty.

Made in England.

ALM Introduces FMco - Compact FM Synth Voice

video upload by ALM TV

Chapters: 0:00 - Intro 0:53 - Frequency Control 1:48 - FM Index, Ratio & Lock 3:36 - Wave Control 4:55 - Chord Control 6:15 - Trig In & Decay Control 7:03 - End Jam 8:30 - Outro

The FMco is a compact FM synthesis based VCO and voice. It features our own original 2-operator FM synthesis DSP implementation inspired by our ‘Akemie’ modules but tuned for more immediate use and a more modern sound.

It includes both manual and voltage control over FM Index, Ratio and a selection of classic operator waveforms for a wide palette of FM sounds from a simple set of controls. A built-in decay envelope is routed to both FM depth and output level, allowing the FMco to function as a full synth voice when triggered. The FMco also includes CV-controlled four-voice chords, an encoder-based tuning system for easy accurate pitch control, and a stereo-widened output, delivering a large amount of FM synthesis all in just 8HP.

Feature List

2 Operator FM synthesizer voice with direct and voltage controlled parameters.

Easy, quick and accurate tuning via an encoder control.

FM Index offset with direct and CV control with attenuverter.

8 Operator wave shapes with direct and CV control with attenuator.

Ratio control with lock switch for both free and precise operator ratios.

Trigger input for simple built in decay envelope internally connected to Index level and output VCA level.

Direct and voltage controlable chord mode with inversion and up to 4 voices.

Left and Right outputs with stereo widening effect.

USB-C for quick and easy ‘drag and drop’ firmware updates.

Skiff friendly with reverse power protection.

2 Year Warranty

Made in England.

Erica Synths Introduces KONSTRUKT-8 // EDU DIY Drum System

video upload by Erica Synths

"KONSTRUKT-8 is an expressive live performance instrument and sound design tool – plus a hands-on deep dive into electronic circuit design. Each of its eight DIY modules comes with a detailed build guide and can be explored on a breadboard first, letting you trace every circuit design decision before assembling the final instrument.

Timeline:
00:01 - Patch 1 / Electro beat with BBD on the send
01:58 - Patch 2 / Wonky beat with FM drum triggering the Hi-Hats
03:57 - Patch 3 / Classic Untz Untz beat
06:01 - Patch 4 / Raw beat, with Feedback bass
07:55 - Patch 5 / Jam together with DIY Synth System"

KONSTRUKT-8 is an expressive live performance instrument and sound design tool – plus a hands-on deep dive into electronic circuit design. Each of its eight DIY modules comes with a detailed build guide and can be explored on a breadboard first, letting you trace every circuit design decision before assembling the final instrument.

KONSTRUKT-8 includes four fully analog drum voices:

• Kick Drum. A resonant bridged-T network produces deep, punchy kicks.

• Snare Drum. A burst of filtered transistor noise layered over a tuned resonator creates a crisp snap.

• Hi-Hat. Six dissonant square-wave oscillators are mixed, filtered, and overdriven to create metallic percussion.

• FM Drum. Two interacting oscillators form a versatile percussion voice capable of kicks, toms, bells, and cymbal-like sounds.

A four-channel drum sequencer lets you tap in rhythms that loop automatically. Under the hood, shift registers store the pattern as a circular sequence of binary data.

All voices feed into a four-channel mixer with per-channel FX sends and a master insert, allowing you to shape the entire beat with external effects or the built-in distortion and compressor.

Two effects modules complete the system: an analog bucket-brigade delay (BBD) with flanger and delay modes, plus a diode-based compressor with sidechain capability.

WHAT’S INCLUDED

Both versions ship with:

• EDU DIY Kick Drum kit

• EDU DIY Snare Drum kit

• EDU DIY Hi-Hat kit

• EDU DIY FM Drum kit

• EDU DIY Drum Sequencer kit

• EDU DIY Output Mixer 2 kit

• EDU DIY BBD kit

• EDU DIY Compressor kit

• 8 downloadable build guides

The system version also includes:

• Eurorack enclosure with integrated power supply

• 15 braided patch cables (5× 20cm, 5× 30cm, 5× 60cm)

CLICK FOR MORE »

Minimal Electronica with Softball MIDI and Digitone | Extra Ball 2026-03-20 by atnr

video upload by atnr

"A minimal electronica piece where MIDI from ‪@noine-giron‬ Softball https://store.noine.net/softball.html is sent to Digitone for sound generation.

Softball by noine runs on a Mac and sends MIDI sequences to the Digitone via USB MIDI, triggering the sound.

On the Digitone, the knobs are used to shape and modify the sound of each track in real time."

Some info on Softball, Google translated:

"A macOS MIDI sequencer that is simply fun to use—featuring the playful motion of a bouncing ball. It is currently available for purchase on Payhip.

・Simple ・Highly expressive ・Fun to use
These three principles form the core of its design. While I do plan to add more features in the future, I intend to remain steadfast in upholding these three fundamental pillars.
DAWs like Ableton Live consolidate almost every conceivable function into a single package, allowing you to do just about anything; I rely on them heavily myself.
However, isn't there also a unique joy in treating individual applications on your computer as distinct modules—combining them in various ways to create something new? This very concept is why I chose to handle MIDI directly rather than developing this as a standard plugin. And, of course, sending MIDI signals out to trigger external hardware instruments is a delight in its own right!
I have intentionally designed the interface to avoid the need for precise note-by-note (Do-Re-Mi) input via a traditional piano roll. Instead, I encourage you to experiment with different keys and scales to find the perfect musical balance that feels right to you. My hope is that you will feel free to create and play sounds in a way that feels natural and accessible.
But why the bouncing ball?
Aren't you a little tired of watching static step sequencers or piano rolls scroll endlessly across the screen?
I felt that the dynamic motion of a bouncing ball had a wonderful synergy with musical rhythm and beat. Plus—let's be honest—it just looks adorable as it bounces along!"

Introducing KOMA KASSIOPEIA, a 4-channel DC interface

video upload by KOMA Elektronik

"Kassiopeia is a 4-channel DC interface that lets you control motors, solenoids, LEDs, fans, lights and more with MIDI or CV/Gate.
Tap, shake, vibrate, and move objects to create sound in ways you’ve never imagined. Build kinetic sound installations, trigger solenoids rhythmically, or illuminate objects for an immersive performance.
#komaelektronik #synthesizer #sounddesign #kineticsculpture"



"Kassiopeia is a 4-channel DC interface that lets you control motors, solenoids, LEDs, fans, lights and more with MIDI or CV/Gate.

Tap, shake, vibrate, and move objects to create sound in ways you’ve never imagined. Build kinetic sound installations, trigger solenoids rhythmically, or illuminate objects for an immersive performance.

What if sound wasn’t just about speakers and synthesizers? What if you could make music by striking metal plates, shaking objects, or vibrating strings?

Kassiopeia is a 4-channel DC interface that turns movement into sound and light. It lets you control motors, solenoids, fans, LEDs and lamps using MIDI or CV/Gate. Each channel can either smoothly adjust power levels (great for controlling motors and movement) or send short, punchy triggers (perfect for percussive hits).

Designed for experimental musicians, sound artists, and tinkerers, Kassiopeia lets you:

Trigger solenoids to create percussive rhythms on any object.
Control motors and fans to shak, vibrate, or bow strings.
Control lamps and LEDs for an immersive performance.
Build kinetic sound sculptures that interact with the physical world.
Power-starve devices for glitchy, unpredictable results.
Simply connect it to a laptop via MIDI (Ableton-ready!) or control it with CV/Gate from your modular system.

During its development, we worked closely with Hildur Guðnadóttir and her band Osmium, incorporating ideas from the modified Halldorophone used in the Joker soundtrack. It’s an instrument of endless possibilities—where will you take it?"

KASSIOPEIA actually made its first mention on the site back on May 7, 2025.

CLICK FOR MORE »

ULTRAMASTER KR-106 Open Source Roland Juno-106 Soft Synth Emulation

"A virtual analog synthesizer inspired by the classic Roland Juno polysynths, with DSP calibrated from hardware measurements, firmware analysis, and factory schematics. 6-voice polyphonic.
Free and open source. AU, VST3, CLAP, LV2, and standalone."

Additional details via Reddit:

"We started building a Juno software synth in a Brooklyn loft in 2000. 25 years later, we're releasing it as open source. Meet the Ultramaster KR-106.

Back in 2000, my buddy Dave and I started Ultramaster Group with a wild idea: professional audio software for Linux. We were young, broke, working in a loft in Brooklyn, and perhaps a little bit ahead of our time.

Life happened. I went on to start a screen printing studio. Dave ended up at Google. But we never really stopped thinking about the synth.

Fast forward 25 years. Hardware is exponentially faster, DSP methodology has evolved, and we now have access to oscilloscopes, service manuals, and communities like this one. So we went back to the source code and overhauled everything.

The KR-106 is a 6-voice polyphonic Juno-106 emulation with:

Per-voice DCO, VCF (TPT cascade, IR3109 OTA-C design with 2x oversampling), VCA, and ADSR
Sub-oscillator (CD4013 flip-flop model) and noise source (2SC945 avalanche model)
PWM modes (manual / LFO / envelope)
4-position HPF (bass boost / flat / 240 Hz / 720 Hz)
Per-voice component variance modeling analog tolerances (pitch ±3¢, envelope ±8%, VCA ±0.5 dB, pulse width)
BBD chorus emulation (MN3009 modeled with Hermite interpolation)
Arpeggiator, portamento, Mono/Poly I/Poly II key modes
Two calibration modes: '1984 Mode' (firmware + schematics) and '1982 Mode' (circuit analysis + hardware measurements from my own Juno-6)
128 factory presets decoded from original SYSEX data
AU/VST3 on Mac, VST3/LV2 on Linux, VST3 on Windows, plus Standalone
It's 100% free, GPL-licensed, and we don't take donations. We just want it to be as accurate as possible, and we'd love help getting there.

Website: https://kayrock.org/kr106/"

Welcome to the Banan-a-Synth Prelaunch

video upload by MicroKits

"Link back to the Prelaunch Page: https://www.kickstarter.com/projects/..."

"Yes, it's a banana shaped synthesizer. It's also a synthesizer that turns bananas and other conductive objects into musical keys you can play. This is both a pocket sized sound machine and a musical science lab that lets you use electricity to play notes and control effects. Whether you're a STEM student or pro musician, there's so much to explore with the Banan-a-Synth.

Custom Sound Engine Packed with Sounds: 12 different instrument sounds, 8 built in sound effects. It's also 4 note polyphonic, so you can play a chord!

Play Conductive Objects: Use the included alligator clips to turn all sorts of conductive objects into keys you can play.

Learn Music and Physics: An intro to both the physics of conductivity and the art of applying filters and effects to synthesizer sounds.

Control Effects with Touch: An analog conductivity sensor to control effects. The harder you press the sensor, the stronger the sound effect.

Take It Anywhere: Super portable, with built in speaker and 2xAA Batteries. Also has a headphone jack and can be powered by a USB-C cable, not included.

No Screen, No Computer: Does not require connection to a computer or anything with a screen. Focus on exploring music without distraction.

No Knobs, No Problem: Change tuning, volume, and sound mode by simultaneously touching a setting touchpad and one of the keyboard keys.

Metronome: Select your beats per minute and rhythm structure.

It's a Banana: Tell your friends you can play the banana."

See the MicroKits label below for additional posts.

Bloop Groop Weekender Set for Sunday, Mar 22

You can find full details on the upcoming event this weekend at https://www.bloopgroop.com/...

"Bloop Groop, Dublin's hardware-synth hub famous for its low-pressure “Hang, Jam, Play” sessions, announces its debut 3-day Weekender from Friday 20 to Monday 23 March 2026, with live electronic shows, low-stakes sets, maker demos, talks and hands-on DIY.

Since late 2024, Bloop Groop - founded by Caroline Swords and Gary Byrne - has quietly grown into a regular fixture of Dublin’s electronic music calendar, hosting informal meets where newcomers and old pros share short, loud hardware sets to a friendly crowd. The project now counts a core membership (and surprisingly civilized WhatsApp community) in the hundreds, with over 150 live performances hosted across jams, meets and gigs in Dublin City spaces like The Digital Hub and Trinity College Dublin. The gang shares knowledge, support, and collaborates on music. And, of course, buys and sells each other gear!"

https://www.bloopgroop.com/

Alien 303 V2 (MONO) vs. Alien 4DX (Binaural space 3D Sound) | Acid Evolution Comparison

video upload by G-Sonique

"Alien 303 V2 (MONO) vs. Alien 4DX (Binaural space 3D Sound) comparison

Is Mono Acid dead? 🛸 In this video, we compare the legendary Alien 303 V2 with the groundbreaking Alien 4DX Binaural Topology synthesizer.

While traditional acid synths are usually mono and "flat," the new Alien 4DX uses a special 3D binaural topology that emulates analog circuits and DSP chips to place the sound directly in a 3D/4D space around your head. No quadraphonic setup needed – just your headphones or 2 speakers.

What’s the difference?

Alien 303 V2: The classic, punchy, '2D' mono acid lead that defined a generation.

Alien 4DX: A massive, organic, and harmonically rich sound that fills the entire stereo field using psychoacoustic principles (time shifts, phase distortion, and frequency modulation).


Key Features of Alien 4DX:

CLICK FOR MORE »

Homework test 1

video upload by Giorgio Sancristoforo

"First test run of a new software"

Komodo by Krakli - Free Semi Modular Synthesiser Demo

video upload by steve webb

"32Bit only https://plugins4free.com/plugin/2943/"

"Komodo is a semi-modular synthesizer.

It has a vast range of self contained synth engines, Virtual Analog, Physical modelling, FM, and Bell tones (Ring mod) all routable via filters, Vector controllers, and a variety of envelopes and LFOs then on to multiple effects stages.

Each sound engine can furthermore be controlled by a combination of Keyboard, Sequencers or Arpeggiators.

Things can get crazy very quickly. Its also a very large GUI so some may struggle to fit it onto their screens. Komodo has historically not been that popular as it is a dificult beast to tame but persevere and you will be rewarded."

?Gitaar & ?TR606 & RC500

video upload by Gijs Gieskes

https://gieskes.nl/instruments/?file=...
https://gieskes.nl/instruments/?file=...

00:00 ..
02:17 The cassette player
02:34 ..
04:34 Drums and Guitar with distortion
07:03 I gave you my song

CLICK FOR MORE »

Oberheim Matrix 1000 Clone Test (Voice 2 issue)

video upload by Martin Jan Köhler

Lese TEURI

video upload by DATABROTH

"Read my full review here: https://www.databroth.com/blog/teuri-...

00:00 Pads
01:03 Kicks
03:24 Noise


video uploads by Lese Audio Technologies

Teuri is for Distortion Morphing.

Teuri’s “Cellular Distortion” system puts multiple distortion models at different points on an XY pad and lets you live in the tension between them. Drag through the grid and blend through textures that were never meant to coexist. ragged fuzz bleeding into clinical overdrive, soft saturation collapsing into bitcrush.

No snapping, no quantizing, just continuous, organic layers of deterioration.

Since the different models can produce sound at different levels, Teuri internally handles these differences to give you a smooth morphing experience.

Highlights
Model Selection

Teuri comes with a broad palette of distortion characters; from analog circuit models to experimental processes that have no hardware counterpart.

Whether you’re reaching for the warmth of a pushed tube stage, the grind of a germanium fuzz distortion, or something that treats your audio less like a signal and more like a material to be torn apart, Teuri’s model selection is built to cover the full range of what distortion can mean.

Distortion Cells

Different distortion models are added on an XY pad, and the internal “Positional Blending” system handles smooth blending between them, regardless of model. The “blender” also attempts to balance between the gain differences that the models have in real-time.

Modulate More

Teuri has a modulation system, similar to the one in Glow and Smear. Offering up to four modulators which can be optionally synchronized to the DAW’s BPM & retriggered by the DAW’s playback state.

https://lese.io/plugin/teuri

JMT SYNTH / SRV-1b

video upload by beatsville store

https://beatsville.jp



A desktop spring reverb unit featuring a built-in miniature spring.

You can use its high-quality, authentic spring to achieve a beautiful, classic reverb—or you can dive headfirst into the lush, vibrant resonance of a wildly oscillating spring, letting yourself drift and drown in its saturated wetness. It gets absolutely drenched.

And while nobody explicitly told you to shake it, smack it around, or slam it against the table... well, naturally, you’re going to do it. After all, there’s a real spring inside that actually shakes! It’s the thrill of the authentic.

Mix the clean-boosted signal (GAIN) with the spring-reverb-processed signal (REVERB), then adjust the overall output volume using the LEVEL control.

When the switch is in the down position, the signal bypasses the effect, passing directly from IN to OUT. The LED illuminates when the effect is active.

*Powered by a DC 9V power adapter (center-negative / Tip = -); sold separately.

Baby Audio GRAINFERNO

video upload by DATABROTH

"Read my full review here: www.databroth.com/blog/grainferno-review

check out my wavetables and presets at https://gumroad.com/databroth
join my Patreon https://www.patreon.com/databroth

00:00 Melody and tweaking
02:56 SFX
03:54 Ambience
04:43 Chaotic Percussion"

Granular synthesis redefined

Break your samples apart to build new and unique sounds

Play any audio file like a synthesizer-in tune with your song

Explore a new world of sound design with audio as your raw material

A firestorm of granular power

Grainferno is an advanced granular instrument built around a new way of synthesizing sound from existing audio. Its next-gen grain engine breaks your samples into microscopic fragments and rebuilds them into entirely new textures.

From pristine tonal clouds to experimental digital noise, Grainferno turns your sample library into an endless source of playable inspiration.

Make a synth from any sound

Grainferno can generate grains at speeds fast enough to cross into the audio range. At these rates, grains stop behaving like texture and start acting like oscillators-turning any audio file into a playable synth voice.

Even at audio rates, traces of the original sonic character remain, giving you unique synth building blocks with the spectral fingerprint of your source audio.

Add modulation and grain-level shaping to build ready-to-use granular synth tones that stay in tune with your song like a traditional synth.

CLICK FOR MORE »

Nightverb 1.02 update

video upload by Erica Synths

"This update adds a compressor and a noise gate, making it possible to create a true gated‑reverb effect. Famous from the 80s productions, gated reverb is an audio processing technique that combines reverb with a noise gate to create punchy sounds while keeping the mix clean.

More info: https://www.ericasynths.lv/news/post/..."

synthiota CircuitPython Drone Synthesizer Demonstration

video upload by ReLiC

"Full demonstration of the synthiota Drone. 8 Oscillators, 3 LFOs, effects, and more!

Hardware: https://github.com/todbot/synthiota
Software: https://github.com/relic-se/CircuitPy...
CircuitPython: https://circuitpython.org/

Libraries:
https://circuitpython-synthvoice.read...
https://circuitpython-synthiota.readt...
https://circuitpython-waveform.readth..."

Also see "tbish" update on "synthiota" board

CircuitPython Drone Synthesizer Demo on synthiota

video upload by ReLiC

"8-voice drone synthesizer written in CircuitPython for the Synthiota."

Software: https://github.com/relic-se/CircuitPy...
Hardware: https://github.com/todbot/synthiota

Dronage Terminal

video upload by Fedir Tkachov Music

"Simple ambient composition consisting of 3 drone layers and one sad sequence"

Dronage Terminal: Basics Tutorial

video upload by Bruce Menace

(Teaser) Taneler v0.1.0 - An ambient loop workstation in your terminal

video upload by Bruce Menace



via https://boorch.itch.io/dronage-terminal

A drone workstation for the terminal, featuring 4x famously open sourced macro oscillator synth module whose name must not be spoken, extensive modulation capabilities, and custom tailored effects including a granular delay.

The screenshots demonstrate how the tool looks like when it's launched through Rio Terminal, an amazing terminal emulator that supports RetroArch shaders. For clarity, Rio Terminal is NOT a requirement.

I highly recommend downloading a Nerd Font (like JetBrains Mono Nerd) and using it on your preferred terminal emulator to make sure all special characters used in the UI id splayed as expected though.

There's a README.md file included in the downloads. It's in Markdown format. It's human-readable with any text editor, but I strongly suggest using an app that supports Markdown format to view it with better formatting. Worst case scenario, you can paste it into a Markdown viewer website like this to read it properly.