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."

What is the Groovesizer Mynah?

video upload by Floyd Steinberg

"The Mynah is a 6 track sampler you can buy as a DIY kit from https://groovesizer.com/. In this video, I build it and go sampling and creating tracks. Table of contents:

00:00 demo
00:05 hi, what's this?
00:23 building the thing
05:44 overview: user interface basics
08:25 sample something!
11:08 create a song
14:48 conclusion


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

Groovesizer MYNAH Sampler – Sound Design & Per-Voice Controls

video upload by MoShang

"Mynah is a compact, 6-voice polyphonic DIY sampler. In this video, we dive into the per-voice features that give you deep control over your sound. https://groovesizer.com/"

See the Teaser announcement post here.

Groovesizer MYNAH - Teaser

video upload by MoShang

"The MYNAH is a compact, DIY sampler that lets you record, chop, and perform your sounds anywhere.

Mynah is a compact, 6-voice polyphonic sampler you build yourself, powered by an ESP32 microcontroller and designed for musicians and sound explorers who want a truly tactile creative tool. Behind its approachable looks, Mynah hides a deep feature set including a 16-step sequencer, real-time and momentary effects like delay, reverb, filter, stutter, gate, and bit crusher. Mynah features dual audio inputs for recording from a microphone or line-in source. Samples are stored on SD card and loaded into RAM, giving you up to 16 samples per song and over two minutes of total sample capacity. Whether you’re programming beats, shaping textures, or performing live, Mynah puts serious sampling power in the palm of your hand.

Mynah‘s 16-bit, 32kHz ADPCM audio engine delivers the crunchy, characterful sound of classic samplers, while a companion web-based tool keeps your workflow modern and efficient. Manage your samples and songs, and export high-quality stems — all from your browser."

You can find more info at https://groovesizer.com/

Theremon+ [First Look]

video upload by MoShang

"The Theremon+ is the successor to the kit-built Theremon by Groovesizer. While the original was limited to a single voice, the Theremon+ adds a second wavetable-based voice with an arpeggiator, and a drum section with various styles and 4 kits. The original was intended exclusively for the DIY market, but the plan is to sell the Theremon+ fully built. We hope to offer the Theremon+ at the same price point as the original (around US$130) - would you back it on Kickstarter? https://groovesizer.com"

Groovesizer RED Granular Synth

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

via this auction

You can find a demo of one posted here.

Granular synth with 16-step sequencer
5-Pin Din MIDI in & out
1/8 inch jack mono audio out
32 user locations for saving patterns & patches
Chain up to 4 patterns to create a 4-bar pattern
Note entry can be quantized to one of 12 pre-defined scales
Open source, based on Auduino
Built & working (arrived as kit)
Powered by 9V power adapter (not included)

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Groovesizer Sequencer Synthesizer

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

via this auction

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Groovesizer, BeatThang, MPC Live, RM1x, Grandmother, MiniBrute 2, 2S, EXB-Radias

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

A few items listed on Reverb here via supporting member, Phil.

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Groovesizer Theremon: Digital Theremin & MIDI Controller

Published on Jun 30, 2019 MoShang

via Groovesizer

"Theremon is a digital theremin and MIDI controller that you can either build from a kit, or order fully assembled. Like a traditional theremin, Theremon is played without physical contact with one hand controlling pitch, and the other volume. In the place of the two antennas found on a traditional theremin, Theremon features two time of flight sensors that accurately measure the distance of the player’s hands from the instrument."

Moog One 8-Voice Analog Polyphonic Synth

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

via this auction

"For your consideration, please excuse the pun, but this is The ONE you've been waiting for! Moog One, 8-Voice polyphonic programmable analog synthesizer. As new, with only six (yes, 6!) hours of use. Plastic clings still cover all display screens! This is as close to NEW as one may find in a "used" instrument. This package contains all things as new....The One Synthesizer, Power Supply, original paperwork, Moog pencils(?), original box, and original shipping carton..."

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Groovesizer MB multi-function synth seq board

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

via this auction

"It can be a wavetable synth, multi osc Monosynth, Grain synth, sequencer, 8-bit drum machine with 4 parts and mod automation, and other firmware modes from Groovesizer

Fully functional
Delta fw currently loaded which is kind of like having a 32 step gameboy classic sequencer

The Groovesizer Delta mode is a PWM lo-fi granular monosynth attached to a 32-Step sequencer with parameter automation, transposition and other controls"

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Groovesizer TB2 4 voice paraphonic wavetable Arduino synth

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

via this auction

"4 voice paraphonic wavetable synth shield for the Arduino Due development board. The TB2 features 2 oscillators per voice, an ADSR envelope, LFO, digital filter, arpeggiator, as well as a 16-step sequencer.

For sound generation, the TB2 makes use of the pair of 12-bit DACs built into the Arduino Due’s 32 bit ARM processor. The TB2 uses an SD card for storing patches and sequences, and it also allows the user to load single cycle waveshapes for the two oscillators and the LFO."

Crockett's Theme.

Published on Nov 2, 2017 Barry Smethurst

"Crockett's Theme. Modular, TR09, Mopho, Groovesizer TB2, MB33

@Aptamusic"

Randomized polyrhythmic beats with Stochastic Groovesizer

Published on Sep 21, 2017 rudeog

"Customized firmware on the Groovesizer that allows multiple simultaneous time signatures and randomized beats to play on any midi equipped drum machine (in this case the Korg EMX). This firmware was developed along the same lines as a VST plugin I developed called Stochas which is for currently available via audiovitamins.com"

Groovesizer custom firmware with randomization

Published on Sep 4, 2017 rudeog

"Some firmware I wrote for the Groovesizer multi board. It's a midi sequencer that allows probability based programming. Can play notes based on probability, switch patterns based on probability. Six separate midi tracks play simultaneously and each can be a different length (polyrhythms). Also allows each to have a different clock divider/multiplier for double time/half time etc, or other time signatures per track. Can sync to midi clock or output clock sync. If you like this, google "Stochas VST" for a plugin I wrote that operates on a similar principle but does so much more."

Groovesizer RED 16-step Sequencer Granular Synthesizer w/ MIDI

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

via this auction

"The Groovesizer RED is a DIY 16-step sequencer and granular synth.
Functions perfectly!
It sounds so fat!!
It has MIDI!"

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Groovesizer MB Multiboard Synthesizer

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

via this auction

"The Groovesizer MB (for multiboard) is a DIY 8-bit audio platform. It’s a musical chameleon that can take on a number of different roles from sequencer to synth, drum machine, or midi controller. Exactly what the Groovesizer MB is at a given moment depends on the firmware it’s running. Existing firmware can be freely hacked, or new firmware developed using the beginner friendly Arduino IDE. Firmware is loaded to the board directly from the Arduino IDE, either via an AVR ISP programmer, or by flashing the Atmega chip on an Arduino board and swapping it out."

See manufacturer's specs here.

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Ode to Shruthi-1

Uploaded on Dec 27, 2011 MoShang

"A little synthpop ditty made entirely with the kit-built Shruthi-1 by Mutable Instruments. All patches are Shruthi-1 presets - I've added eq, reverb and delay to taste. http://mutable-instruments.net/shruthi1
http://tinyurl.com/MoShang-iTunes"

Note this one is from 2011. Apparently I missed it, so here it is. MoShang is the man behind Groovesizer.

Groovesizer TB2 analog synthesiser - 4 voice paraphonic wavetable synth

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

via this auction

"The TB2 is a 4 voice paraphonic wavetable synth shield for the Arduino Due development board. The TB2 features 2 oscillators per voice, an ADSR envelope, LFO, digital filter, arpeggiator, as well as a 16-step sequencer.
For sound generation, the TB2 makes use of the pair of 12-bit DACs built into the Arduino Due’s 32 bit ARM processor. The TB2 uses an SD card for storing patches and sequences, and it also allows the user to load single cycle waveshapes for the two oscillators and the LFO.

Comes with power supply and 8GB sd card.
Quarter firmware."

See the Groovesizer channel below for demos.

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Arduino synthesizer "DIRTY" Jam - D6IHI: Itakona Koikapr song

Published on Jul 31, 2015 Petr Jiroudek

"It's the first 'DIRTY' Jam with Arduino synthesizer + Korg Mini Kaoss Pad.
Arduino 16-step sequencer and synth: design by Čaroděj
Song: Itakona Koikapr

original design: http://moshang.net/soundjeweler_blog/..." [Groovesizer synth & sequencer]