Groovesizer RED Granular Synth

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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

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

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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."

Groovesizer MB multi-function synth seq board

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"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

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"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

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"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

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"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

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"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]

Groovesizer TB2 - Mono Mode & Portamento

Published on Jul 13, 2015 MoShang

"Version 131 of the TB2 Quartet firmware adds a monophonic mode with 3 different input types (highest note, lowest note, and last note priority). There's a new unison mode with adjustable spread and number of voices from 2 to 4. Portamento has also been implemented. The parameters for these features can be saved o a per patch basis."

Groovesizer TB2 Attack! - Feature Overview

Published on May 18, 2015 MoShang

Groovesizer on eBay

"With the Attack! firmware loaded, the TB2 becomes a 6 voice drum machine with a 32-step sequencer.
Here are the vital statistics:
- 6 voices
- 12-bit, 22kHz, stereo playback
- loads wav-files off SD card (NB: samples are truncated to the first 250ms only!)
- individual control per voice over pan, pitch, sample start/end, volume, bit reduction
- assign sample start, pitch, bit reduction and volume to velocity
- save and load kits on SD card
- 32 step sequence
- 8 sequences per bank
- save and load sequences on SD card
- live recording/overdubbing
- set 2 velocity levels per voice (normal and accent)
- supports flams (individual delay and decay settings per voice)
- automate sample start and pitch per voice
- MIDI in/out/sync
- bult-in grain effects"

Groovesizer RED - Midi Granular Synth + 16-Step Sequencer

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"Features at a glance:
SYNTH

Granular Synth Based On Arduino
Synth Settings Saved With Pattern
Live Play Mode (via MIDI keyboard)
Automatable Grain Decay 1 (sounds similar to filter cutoff)

SEQUENCER

Note Entry For Individual Steps Or Groups Of Up To 4 Steps At Once
Rests, Ties, Slides And Accents For Each Step
Pattern Length From 1 – 16 Steps
Pattern Retrigger
Tap Tempo
6 Play Modes (Forward, Reverse, Pendulum, Random Interval, Drunk, Random)
Pattern Transpose (Semitones Or Octaves)
Adjustable Note Duration
Swing / Shuffle
MIDI In / Out (note, clock sync, trigger)
MIDI Note Entry
MIDI Transpose Pattern
Send Automation via MIDI cc
Note Entry Quantized To 12 Preset Or 4 User Defined Scales
32 Save Locations Arranged In 8 Banks Of 4 Patterns
4 Play Modes Per Bank (loop 1, loop 2, loop 4, random)"

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Groovesizer TB2 - LFO Sync to BPM

Published on Apr 16, 2015 MoShang

"The latest firmware update for the TB2 allow its LFO to sync to the current BPM. To do so, hold Shift-R/Enter when adjusting the LFO rate. In this video, the BPM is adjust over MIDI while the TB2 plays a pattern from its internal sequencer to show how the LFO remains synced."

Groovesizer on eBay

Groovesizer TB2 - Feature Overview

Published on Apr 7, 2015 MoShang

Groovesizer on eBay

"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."

Korg Monotribe x2, Volca Keys/Bass, Groovesizer/XR-20(experiment 5)

Published on Mar 2, 2015 Metatron's Cube

"An experiment, looking for sounds, and testing the mixers on-board effects of the Mackie Mix12FX mixer. Thanks for watching/listening!"

Transitions around the 4:00 minute mark.

Korg Volcas on eBay |