MATRIXSYNTH

Tuesday, August 04, 2026

Indtroducing AcidBoxMynah


video upload by MoShang

"AcidBoxMynah is an alternative firmware that turns the Mynah into an acid groovebox. Based on the open source AcidBox project for ESP32. It provides an acid combo of tb303 + tb303 + tr808 like synths. Filter cutoff, reso, env mod, accent, wavefolder, overdrive within each 303, per-instrument tunings, hi-pass/lo-pass filter and bitcrusher in drums, send to reverb, delay and master compression

While the original project is headless, the AcidBoxMynah fork provides direct control with the Mynah hardware and adds a number of additional features detailed in the user Manual below. Like the original firmware, the AcidBoxMynah is open source and made available under the MIT license.

More info at https://groovesizer.com/"

Update: press release follows:

"Hot on the heels of Mynah's launch this past May, Groovesizer has released AcidBoxMynah - a free, open-source alternative firmware that transforms the ESP32-S3-based sampler into a dedicated acid groovebox.

Built on copych's open-source AcidBox project, AcidBoxMynah takes what was originally a headless engine and gives it a full physical UI on Mynah hardware - 24 tactile switches, an 8×2 NeoPixel grid, OLED display, and a single pot for hands-on parameter control. Under the hood, it's a combo of two TB-303-style synths plus a TR-808-style drum machine, with filter cutoff, resonance, envelope mod, accent, wavefolder and overdrive per synth voice, plus hi-pass/lo-pass filtering and bitcrushing on the drums, all routed through send effects and master compression.

The Mynah fork adds a 16-step sequencer with per-step note, accent and slide editing, 16-lane synth and 8-lane drum automation, scale quantization, swing, and manual Sequencer Mode in addition to the original's autonomous Jukebox Mode. Quality-of-life additions include runtime drum kit browsing, per-voice muting, and pot-lock to prevent accidental parameter jumps.

Like the original AcidBox, it's fully open source under MIT license.

Switching is effortless. Owners can flash AcidBoxMynah straight from the Mynah web app's firmware tab and swap back to standard Mynah firmware anytime - AcidBoxMynah keeps its own folder on the SD card, so nothing overwrites or conflicts with existing samples and patterns.

AcidBoxMynah is available now at groovesizer.com/acidbox-mynah."

Quick Test/Demo Of The “FINAL” arrangement Of My Battery Powered Eurorack Toolbox? ;-)


video upload by John L Rice

"Never say never but I can’t help but be optimistic that this setup will never change! πŸ™„πŸ€£

This customized Ace toolbox contains modules from the following companies:
Tiptop Audio
Behringer
Ladik
Happy Nerding
2hp
Intellijel
Doepfer
Bubblesound
Erica Synths
Qu-Bit
MengQi

The battery is a Talentcell LF4100"

Duet for Cello and Synthesizer (2nd Demo) | Ambient Performance


video upload by PARKER

"All sounds Korg Minilogue XD.
Performed in two takes.

More Music Here: https://jparkersound.bandcamp.com/"

Atrium whimsical raps first jam


video upload by Oracle -001

"I wanted to set out on my first time powering on the raps with the idea of making noise and maybe hearing the low pass gate ping. I have tried alot of ribbon style controllers and this one is different I think the company would make a lot of money just making it as a midi controller. Peace ✌️"

Poly Evolver Keyboard synth song


video upload by Brian Schaft

"The PEK synth is my favorite synth. On-board it has 120 wave shapes with a very well thought-out array of them- allowing for a wide texture of sound. This song is basically just three patches. The drum and cymbals are acoustic."

Korg Opsix DeadMau5 style Arps | UAD Eventide Harmonizer | TeknoBaby |


video upload by TeknoBaby

"Opsix playing classical arps. Going into UAD Eventide Harmonizer with reverb and delay added. Bass drone is done by Moog Sub37."

First patch ‘flute monster’ - Error Instruments Cloudbusting


video upload by Lo-Fi-Si

"Error Instruments - Cloudbusting
Walrus Audio - Qi Etherealizer

First patch. I love the Error Instruments vibe. Paul Tas is a really interesting creator. But this is the one device I’ve been waiting to get hold of. Mainly for the ‘plum’ CV input mode which creates these wonderful flute like tones. Trying to work out how the different controls interact is quite a task as the functionality changes for each mode. I’m not a great fan of the ‘clips’ for patching as they are really fiddly. The build quality is fantastic though. Very solid and tidy.

Anyways, this is sending the main output to the Plum mode, with use of the drone and FM modes too.

Etherealizer is adding delay, reverb and +octave granular."

What Is A Second Chord?


video upload by Raka

"Noodling around on the OB-X8 and Prophet 10.
Really enjoying the Oberheim filter sweep."

A Little Knight Music with the Sequential Prophet Rev 2


video uploads by A Little Knight Music

Playlist:
1. 6 Cylinder Dream
2. Drones in the City
3. Evening Musing
4. F# Ambient
5. Lo-Fi Layers
6. Ambient Echoes
7. Waves in Triplicate
8. Underwater Voices
9. Evolving Pads
10. Dorian Musing
11. Lo-Fi Lydian Pads
12. Phryed Circuits
13. Revived Ambience
14. Day 26 - Harmonic Ascension

SATURNO MERCURIO SATURNO | Doctor Fungus #arpoloop


video upload by LepLoop

"πŸͺ Voyage 4: From Gravity to Heat ☄️

In the fourth session of The ArpoLoop Space Sessions, Doctor Fungus navigates the extreme contrast between the heavy, resonant gravity of SATURNO and the erratic, sun-scorched speed of MERCURIO. Watch as the ArpoLoop's note generator moving from deep, sustained glitch into frantic, high-frequency rhythmic patterns, then settling back into the expansive atmosphere of the ringed giant.

🎹The Gear: ArpoLoop www.leploop.org/2024/05/14/the-arpoloop-synth/
πŸ‘¨‍🎨The Pilot: Doctor Fungus

πŸš€ The journey is almost complete. Catch up here: Doctor Fungus: The ArpoLoop Space Sessions πŸš€ "

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