How to make the Stranger Things Arp Sound | Modulox Brain Sound Design

video upload by RaspiAudio

"In this video, we show you exactly what the Modulox Brain is capable of by recreating the iconic Stranger Things arpeggiated synth sound from scratch! Watch as we build the patch step-by-step using multiple oscillators, filters, LFOs, and delay on this powerful little machine.

🎹 Meet the MODULOX BRAIN by Raspiaudio 🎹
Modulox Brain is an Open Source modular synthesizer platform.
⚠️ We have a few more in pre-sales! Grab yours here: https://raspiaudio.com/product/brain/

✨ A versatile centerpiece for your MIDI setup, featuring magnetic modules that snap together effortlessly. ✨

🔹 Endless Sound Engines: Transform it instantly into a Virtual Analog, Granular Synth, FM Synth, or Sampler—just by swapping firmwares!
🚀 Community Driven: Open-source, Arduino-friendly, and continuously evolving with community-driven apps available in our App Store.

🔧 Specs Highlights:
• 24-bit DAC & ADC
• Vivid 320×240 Color Screen
• Onboard Microphone & Speaker
• Audio Jack (Mic & Headphones)
• Clickable Encoder & 4 Buttons
• MIDI IN/OUT (3.5mm jacks) + Sync
• USB-C MIDI Connectivity
• Magnetic Connectors for MODULOX Knob, Touch, and Slide modules
• Nano-pad Anti-slip Base

✨ Endless possibilities, limited only by your imagination. ✨

👉 Full independent review here: • Modulox Brain - an Open Source modular syn... [posted here]
🌐 Discover more: https://modulox.fr

#Modulox #ModuloxBrain #StrangerThings #Synthesizer #SoundDesign #OpenSource #Raspiaudio #ModularSynth #Arduino #SynthTok"

Super JX and the MPG-7X

video upload by Starsky Carr

"The Roland Super JX (MKS-70 / JX-10) is one of Roland’s most underrated analogue polysynths. Released in 1986, it was effectively two JX-8P synth engines in one instrument, giving you 12 voices of DCO analogue synthesis, huge pads, powerful basses, and classic mid-80s Roland character.

In this video I take a deep dive into the Roland MKS-70 Super Jupiter rack synth, paired with the Retroaktiv MPG-7X programmer and the Vecoven PWM upgrade, which massively expands the capabilities of the original synth.

We explore how the controller transforms the experience compared with the original menu-driven interface, and look at the additional synthesis power introduced by the Vecoven upgrade including true PWM, additional envelopes, extra LFO, and expanded modulation routing.

Along the way I demonstrate a range of sounds including pads, basses, evolving textures and layered patches, showing why the Super JX became famous for its huge analogue pads and rich detuned sounds.

I also look at some of the performance features of the MPG-7X such as assignable controls, patch generation, chord mode, velocity crossfading and MIDI integration, which make this combination feel like a modern analogue synthesizer despite the vintage hardware.

If you're into vintage Roland synths, analogue polysynths, or classic 80s synthesis, the Super JX is a fascinating instrument sitting right at the transition between the analogue era and the rise of digital synths like the DX7.

In this video
Roland MKS-70 Super Jupiter overview
Retroaktiv MPG-7X controller deep dive
Vecoven PWM upgrade explained
Sound design examples and patch demos
Dual-layer patches and detuned pad sounds
Performance features and MIDI control

Gear used
Roland MKS-70 Super Jupiter
Retroaktiv MPG-7X controller
Vecoven PWM upgrade"

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.

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Bird’s Throat & more - Yamaha FS1R Sounddesign (FM Synthesis) - Formant Sequence

video upload by DACHI Klangmusik

"FM Synthesis with Yamaha FS1r Synthesizer and detailed custom Controller built by by R. Skerjanc
Sorry about 20 minutes bird beeeep & bleeep.. 😹
Next time more electronic music..

Midi sequence by Roland TR-3

Check the minimal parameter changes and the sound modulations on the FS1r

Algorithm: OP7 -} OP8

Faders: Volume of Operators

Yellow: Formant Sequence Section (Delay & Speed). Delay is up to eliminate the FSeq effect..

Blue section left: parameters assigned to menu above

Purpose: try & error, exploring new possibilities & dependecies of sections in FM Synthesis, tonal discovery of sore throat birds 💥🎶😉"

An Inspiring Eurorack Toolbox for Audio & CV // Workshop Computer from Music Thing

video upload by DivKid

Also see Turing Machine, Workshop System & Planet of the Apes! // Music Thing Modular at Machina Bristronica

"Seeing the Music Thing Workshop System grow and develop over recent years have been a lovely thing and it made me happy to see part of it getting broken out into a Eurorack module and for that part to be the Workshop Computer. It's an 8HP Eurorack module that works as digital toolbox for audio and CV which offers all sorts of handy low level utility things, more exciting audio and CV generation and a range of more lo fi and hi fi audio FX.

Along with the release of the module are 3 new program cards from RYK, offering pitch shifting delay, vocoding, pitch to voltage and tape style recording and looping. You also get some default Music Thing cards and there's blank cards with a huge range of simple drag and drop a file over USB options for a range of community cards you can get for free too. Check out the links below, loads of info in the timing index to skip around. Enjoy!"

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Reliq Instruments Workshop @SchneidersLaden – Hybrid Audio, CV, MIDI & DAW Workflows

video upload by SchneidersLaden

"In this workshop at SchneidersLaden, the team from Reliq Instruments presents Reliq, an open hub for audio, CV, MIDI, and DAW integration. Sequencing, mixing, modulation, and routing merge into a performative workflow where signal flow itself becomes a creative element. The session explores the philosophy behind the instrument and demonstrates how it can serve as the centerpiece of complex studio and live setups."

Oberheim OB-X - Collectors condition + MIDI!

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

via this Vemia listing

Click the auction link on top when you get there for additional listings.

"Original Oberheim OB-X maxed out with 8 voices from new!

The fattest polysynth ever made and this one is in VERY good condition!

Recent full service by competent tech. Ready for years to come.

He also installed the Encore midi kit (best kit for OBX)

There is also a flightcase that you can have with it for free if you like. For daily use I'd recommend to replace the foam.

Fully working and technically great Classic with 8 original voices (no remakes). This is a real instrument! This is the real deal!"

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POLYEND TRACKER MINI PORTABLE AUDIO WORKSTATION

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

via this listing

Additional Signal Sounds listings

"A pre-owned Polyend Tracker Mini in very good condition. It comes with original packaging and accessories.

Manufacturer's description
Discover the ultimate portable music workstation with the Tracker Mini. Designed for seamless composition, sampling, sound design, and performance, this device offers an expanded 16-track sequencer alongside unique synth and drum machine engines for unparalleled flexibility. With support for 14 stereo tracks of USB Audio and USB MIDI, it's perfect for multi-track recording into a DAW or hybrid setups. Enjoy up to eight hours of battery life for on-the-go creativity, and keep your Tracker Mini safe with the included travel case. Whether in the studio or outdoors, the Tracker Mini empowers musicians to create, mix, master, and export their music effortlessly.

Synths and Drum Machines:
The Tracker Mini excels with four advanced synth engines and a new drum machine synth, focusing on superior sound quality. The intuitive Synth Patch Editor speeds up patch creation and customization, offering a vast range of sounds. From lush pads and intricate arpeggios to powerful basses and robust electronic drums, the Tracker Mini is a synth powerhouse that meets all your creative needs. Dive into ACD for iconic monosynth recreations, FAT for rich analog warmth, VAP for complex polysynth designs, and WTFM for unique FM synthesis. The PERC drum instrument covers everything from classic 808s and 909s to experimental glitch effects.

Studio in Your Hands:
The Tracker Mini provides everything required to produce an album. Start with an included sample pack or explore over 250 synth presets. Record your own sounds, convert samples to instruments, and resample synth engines. Control external devices seamlessly, whether crafting simple beats or complex compositions. Mix, master, and export your songs with ease, making the Tracker Mini an all-in-one solution for any musician. Compatible with projects from the original Tracker, you can begin a song in the studio and finish it on the go, ensuring flexibility and convenience in your music production process.

Breathe Life into Your Tracks:
Transform your surroundings into a musical canvas with the Tracker Mini’s high-quality microphone and onboard battery, offering up to eight hours of playtime. Capture sonic memories from a camping trip or your morning commute to create unique sample packs and drum kits. This portable device inspires creativity beyond the studio, enabling you to store, manipulate, and draw inspiration from real-world sounds. The Tracker Mini ensures that wherever inspiration strikes, you're equipped to turn those moments into music."

BASTL INSTRUMENTS MICROGRANNY MONOLITH DESKTOP GRANULAR SAMPLER

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

via this listing

Additional Signal Sounds listings

"A pre-owned Bastl Instruments Microgranny Monolith in very good condition. It comes with original packaging and accessories.

Manufacturer's description
Granny’s back with a brand new lid: our classic desktop granular sampler gets a facelift, bringing her into the modern age with enough usability upgrades to last another lifetime, rehomed in sleek black PCB-material to help it look the part amongst the latest in the Bastl range.

The Microgranny 2.0 that you know and love is still there under the facelift: lo-fi sound full of character packed into a hands-on monophonic desktop sampler that is a joy to experiment with. Plug in your microSD card loaded with 8-bit samples, or record them live through the in-built mic or line input, and jump into play with 6 samples right under your fingers, or instantly recall up to 60 saved presets.

Playability is paramount
The two-tier menu lets you dart between editing grain size or warping the playback speed, and the new-look tactile knobs grant better control than the previous model. The hazy plastic case is gone, and the PCB case’s sharper text makes the modes under the new and improved buttons more enticing – delve into Randomized mode, Legato playback, or the Instant Loop function to extend the virtually limitless possibilities of the surface controls yet further.

MIDI Control? Yep: play specific grains with keys, control the CC values remotely, even clock-sync loops and grains. Take your Granny for a walk in the park with the battery power, or run it through a wired 9V supply."

Xenodrive and DB-01 twins (no talk)

video upload by Richard DeHove

"Why does the Xenodrive not want to let me go? I've had all sorts of good intentions for other content and other devices, stuff that I'm really impatient to show, yet here are we are with the Xenodrive again. I suspect it's down to two things: First that I've cycled through loads of dirt pedals and effects and rarely found one that has more than a single good sound. The Darkglass B3K for example has a brilliant effect on synths, but despite having four knobs and two buttons, it only has one sound. The Xeno has loads of flavors to explore. Second reason I am fixated on this device is that it's finally given me the 'punk synth' sound I've always wanted. Which is largely what we have in this video.

I originally had a big blabfest at the start of this video talking about the Xenodrive in detail but on sudden impulse I cut it all out. I think I was mesmerized by the Xeno and it was giving me instructions. I must exert my free will while I can. If my next video features the Xeno, send help.

Routing here is the MIDI out from the master DB-01 (left) to the rightside DB-01. The master DB-01 has an 8-step random-generated pattern, the leftside DB-01 is empty. Audio goes from each DB-01 to the Xeno left and right. As usual there is absolutely no other processing.

Many thanks to my kind patrons who keep this channel ad-free" My website: https://richarddehove.com/"

XTRIKE by X Audio Systems - Sound Demo (no talking)

video upload by Mad Synth Engineer

"XTRIKE - Touch & Impact Wavetable Synthesizer with AI Machine Learning

The music featured in this video is made exclusively with XTRIKE, recorded and produced in a DAW, composed and performed by Charles Bisaillon.

XTRIKE introduces a unique dual-Daisy architecture that fuses a precision magnetic bender with an expressive tactile pad, delivering a touch & impact interface far beyond traditional keyboards. Its powerful wavetable engine generates everything from crisp percussive hits to complex, evolving soundscapes all shaped though intuitive, tactile control with remarkable dynamic response. Play directly with your fingers, connect a MIDI controller, or use the built-in sequencer for effortless creativity and stunning results. XTRIKE redefines expressive electronic music making.

XTRIKE is now in pre-launch on indiegogo, follow the project to secure your super-early-bird discount: https://www.indiegogo.com/en/projects...

Learn more about XTRIKE: https://xaudiosystems.com/xtrike/"

See the X Audio Systems label below for additional posts.

Modern Moog Bass - Messenger Filter Modes (no talking)

video upload by Pete Midi

"Moog has defined the synthesizer bass sound for decades. From all Moog mono synths the Messenger provides the widest sound spectrum and in particular, can add interesting variants to the classical bass theme. Here I go through the 4 different filter modes to show the power and flexibility of this synth.

0:00 4P Low Pass
1:35 Band Bass
2:52 High Pass
3:47 2P Low Pass

Recorded with Ableton Live 11 using VISCO and Steampipe 2 (NI Reaktor) plugins for the backing track."

Sequential Circuits Studio 440 SN 00582

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

via this Vemia listing

Click the auction link on top when you get there for additional listings.

"Probably one of the best examples of the classic Studio 440 anywhere.
Sampler/sequencer/drum machine from Sequential Circuits, circa 1987. S/N 582. The present owner bought this from Wine Country in 2007. It has version 2.30 (SCSI) operating system by Pointsource, 512K RAM, 12-bit sampling, up to 35 seconds sample time (at 16kHz, max rate is 44kHz), 50,000 note sequencer capacity, 8-note polyphonic, stereo audio outputs as well as individual track outputs 1 to 8. And, of course, it has MIDI – very easy to sequence up other synthesizers.

Quite a lot of functionality in a single box and easy to operate. The Studio 440 is fairly rare (about 600 made through 1986, ’87) and considered one of the pioneering forerunners to the later MPC units of the nineties.

This unit is in excellent condition – the cosmetics are very good, with tiny scratches around some of the edges of the enclosure. The main panel paintwork, graphics, knobs and switches are like new. No known issues operationally. Disks load fine, sound configuration, sampling, sequencing and audio all good, menus look normal. Display backlight is good, all hardware good. An easy instrument to get to know and operate, and sounds pretty good for a 12-bit sampler. Includes original manual (NOS from Wine Country), some service data, a number of sample disks, head protector disk (this will have to be ejected following transit) and a survival kit consisting of 8 spare touch pads (unused), two NOS pots, one switch module, one I-624 voice chip. The mains connection is standard IEC socket. The buyer will have to acquire their own mains cord that suits their country and change the internal voltage setting if necessary (explained in the manual. The present setting is 230V).

Weighs 10kg. Unit measures approximately 60x30x16cm (including manual, disks and spare parts). Packaged up, will be maybe 10% larger and heavier. The item is located in New Zealand. Examples of approximate door to door air-freight shipping costs, including insurance, at the time of writing, are: UK/Europe, 300GPB/Euros. USA, $500USD (US tariffs may change at short notice). Australia, $250AUD. Costs to be confirmed upon sale. Importing customs charges and tax are buyers responsibility. You're welcome to find alternative shipping at your expense and risk."

CLICK FOR MORE »

GreyScale-KOSMOS&PRA32U #kosmos #pra32u #raspberrypipico #rp2040 #generative #sequencer

video upload by plantssystem

"‪@plantssystem-ufo‬ KOSMOS New in v1.1.0
PRA32-U Sound Engine Integration (Core1)
Powered by ISGK Instruments PRA32-U
The PRA32-U synthesizer engine is now embedded directly into KOSMOS.
Core0 runs the KOSMOS generative sequencer.
Core1 runs the PRA32-U sound engine.
KOSMOS can now output audio on its own, without relying on external MIDI devices.
This is the largest functional upgrade since the project began."

https://github.com/plantssystem/KOSMOS/tree/pra32u-core1-integration?tab=readme-ov-file

See the ISGK and GreyScale labels below for additional corresponding posts.

Akai AX80 w/ Custom Wood Side Panels

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


via this Vemia listing

Click the auction link on top when you get there for additional listings.

Akai AX-80 upgraded with new firmware, new wooden side panels, new pots, new backup battery and most important: fixed panel buttons. The AX-80 is an 8-voice analog polyphonic synthesizer. dual VCO, CEM filters, mesmerizing LED-graph display, programmable as well as preset ROM-programs, and interesting (and deep) modulation options and performance controls. Very lovely to play, and keyboard in very good order. Some of the preset sounds are very 1980s, but there are two banks for you to program your own sounds. New backup battery, completely new firmware from TaunTek added (chips changed), so now filter changes responds without waiting, and MIDI control is updated, several new parts including new volume pot (so no scratching), and new real and very nice wooden side panels. The flimsy voltage switch on the bottom is removed and the synth set to 220 Volts, but all is complete on the inside, so if there is need to change to 110V this is easy on the inside (requires soldering). All synth have one weak point, and for the AX-80 it is the front panel buttons, or more precisely the connections between the three front panel boards on the inside. This has been completely removed, rectified, old connections removed and brand new installed, so all front panel switches work without trouble. As seen from the photos the synth is well used, with scratches here and there, but technically it is now in top shape. All documentation and files are available digitally for the new owner: User manual, service Manuel, preset sounds files, firmware update info etc.

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Parameshwari

video upload by Ebotronix

Joranalogue Audio Design,
4x Cycle 5, 3x Filter 8, 3x Generate 3, 2x Fold 6, Pivot 2, Select 2,
3x Contour 1, Collide 4, 2x Link 2, Enhance 2, Step 8, Orbit 3,
Morph 4, 3x Mix 3, Delay 1,Add 2,Walk4,Warp 1,Compare 2,
2x Doepfer R2m, 2x A 177-2, A 156,
ARC Serge TKB,
Mutable Instruments Veils,Shades,Yarns, Peaks, 2x Ornament and Crime,
4ms Peg,DLD,
Flame 2x Q Slider,
Happy Nerding Pan Mix,
Make Noise Optomix,2x MMG,
Befaco ST Mix,
Hologram Electronics Microcosm Special Edition 2024,
Strymon Big Sky MX, in Dual Mono Mode controlled with
Midi CC by, 16n Faderbank, AtoVproject ,
Parameshwari Scale,
14.03.2026
video# 2618

Roland JX-3P 1983 w/ Series Circuits MIDI Upgrade

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

via this eBay listing

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Starsky Carr's Studio: Vintage & Modern Synth Setup Explained

video upload by Starsky Carr

"Welcome to a full synth studio tour — a look inside my hardware setup featuring vintage analog synths, modern wavetable instruments, modular gear and classic drum machines.

See how a mix of vintage synths, modern instruments, modular gear and drum machines all come together in one integrated setup. In this video I walk through the studio, explain how everything is connected, and show some of the instruments that regularly appear on the channel.

The studio is constantly evolving as new synths arrive, others get repaired, and different setups are tested for videos. In this walkthrough you'll see how classic gear like the Juno-60, Prophet series, Minimoog, TR-808, TR-909 and Jupiter synths sit alongside modern instruments such as the UDO Super 8, Groove Synthesis 3rd Wave, Waldorf M, Arturia PolyBrute and Roland System-8.

I also explain how everything is routed through the studio — from CV-controlled vintage synths integrated with MIDI, to the AudioFuse interface and Neve summing mixer that handle the audio side of things.

If you've ever wondered how to organise a hardware synth studio, integrate vintage CV instruments with modern DAWs, or just want to see a room full of iconic synths and drum machines, this video gives you a behind-the-scenes look at the setup behind the channel.

You’ll also hear a few stories along the way — including the slightly ridiculous “six degrees of separation” link from my studio gear to Charlize Theron and Kevin Bacon through the Lock, Stock and Two Smoking Barrels soundtrack.

Whether you're into analog synthesis, wavetable synths, modular gear, or classic drum machines, this studio tour is packed with gear, ideas and inspiration.

Gear featured (selection)

• Roland Juno-60
• Roland Jupiter series
• Moog Minimoog, Voyager % Sub37
• Sequential Prophet synths
• Oberheim OBX8 and OB6
• UDO Super 8
• Groove Synthesis 3rd Wave
• Waldorf M
• Arturia PolyBrute
• Roland System-8
• TR-808 / TR-909 drum machines
• Analog Solutions Leipzig & Fusebox
• Modular & Eurorack gear"

"Elkatwin 61" Vintage Italian string/organ/bass keyboard - only play-

video upload by Davide Micheli

"Elkatwin 61 is a bass-string-organ keyboard built by the Elka Italian synth company in the 80'.
In my opinion is the queen of string machines of that era.
Video consists of two different parts. In the first, I played bass and organ and also some parts with the Crumar Bit99 synthesizer, midi connected to a Solton Programmer 24 synth adopted only as a master keyboard. In the second part, only full strings are played. Video camera recorded the audio by its microphone.
Hope you enjoy the video."