MATRIXSYNTH: DIY

Showing posts with label DIY. Show all posts
Showing posts with label DIY. Show all posts

Monday, May 04, 2026

ETCHES | Soundscape Palette by Puremagnetik


video upload by Puremagnetik


via Puremagnetik

"Etches is a layered soundscape synthesizer. It's a palette for playing with sound, sketching melodic sections and building evolving tapestries. It moves between cinematic washes, percussive pizzicatos, and atmospheres worn smooth through ambient processing.

Inspired by live modular techniques, Etches is built upon classic synthesis and tape music traditions. Etches’s main engine includes a complex oscillator, a splice recorder and built in space processing.

We designed Etches to be performed. Every control is on the surface, and every gesture is audible the moment you make it. There are no traditional envelopes or filters here. You shape the timbre as you play.

Pick a root note and choose from twelve scales and modes and the pads stay locked to that key while you move. It's hard to play a wrong note, which means you can focus on phrasing instead of finger positions.

At the center is a monophonic voice generator and a splice recorder with overdub, so you can layer sounds into something bigger than individual patches. An internal LFO moves against each splice, modulating where the recording starts and ends. It's a behavior we first used in our LAPS and JOTS pedals. Around all of that: a tape-style delay, and a stereo space processor you can get lost in.

Etches Features:
• Four articulation pads that control contour, timbre-shaping and animation
• Musical overdrive with soft clipping
• 80-second multi-splice recorder for capturing ideas and layering sounds
• Stereo space processor with tape-style delay and a pristine reverb.
• Stereo output
• Runs on a standard Boss-style 9V power supply"

You can find a link to the manual and addtional details at Puremagnetik

GreyScale-KOSMOS2Controller4Voice #kosmos2 #touchosc


video upload by plantssystem

"KOSMOS2 Controller — shaping generative sound in real time.
XY pad for Density & Pitch, encoder for Speed, scale buttons for harmonic shifts, and a master fader for live dynamics.
A tactile interface that turns autonomous music into performance."

Sunday, May 03, 2026

Circuit Bent Fisher Price Toy Piano 1988


video upload by NOYSTOISE

"This is a demo of some of the sounds this keyboard can make. More details about the mods can be found at www.noystoise.com"

Roland TR 606 / TR 608 / TR 808 Mod

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


via this eBay listing

This one was spotted and sent in via
M Me.

One was previously listed on Vemia.

"Modified Roland TR-606 / by Filippo Samore / TR-608 > as used by Hainbach on YT [posted here].
The TR-606 in 808 territory and beyond, with tuning, decay and tone mods.

' This Drummachine is on a another level and is a lot of fun (you become very creative) '

' The mod is high-quality and truly enhances the sound engine of the 606
without compromising its handy form factor. It is almost like a TR-808 now,
except maybe a little more interesting, because it is still a charmingly shuffling 606 at its core.'

Examples:
Visit the phunkydesk dot com Domain / > the files after the slash (/) are as follows:
608_BD.wav, Loop1.wav, Loop2.wav
(there is no distortion/overdrive or clipping converters!)

The main modification in this revisited classic is the complete redesign of the kick drum circuit
with a lot of borrowed technology from the 808!

+ Kick: Tune, env Control, tone and decay.
You can also send the kick through the second output separately!
+ The Kick can also have "almost infinite" decay

+ Snare: same borrowed technology from the 808 but with an improved decay length.
It gives access to tune, snappy and decay.

+ L.H Toms: Tune independent from each other and cuts out the annoying noise present in their circuit.

+ Hi-Hats: Tune and decay, separate for both open and closed hats


++ Original Roland TR 606 carrying case
++ Device is serviced (while Mod)

++ Device checked in endurance test
(Batteries or the 9V TR-606 power supply)"

Saturday, May 02, 2026

ESP32-S3 PolySynth - Work in progress


video upload by Bad Dog Designs

"This is a fully functioning Polysynth using an ESP32-S3 to model the audio in real time, from an initial single Sine wavetable calculated on power up. The control panels for the oscillators and common controls all use CAN bus to communicate parameter changes to the audio engine - rather than wiring up a lot of IO, it just sends a message like 'Change oscillator 3 to Sawtooth'

Basic spec so far:

6 oscillators in 3 pairs that have Sine / Triangle / Saw / Pulse / Noise and Chaos waveforms. There are then independent wave folding modifiers and Sample and hold modifiers. Each oscillator pair can also be hard sync'd to it's partner for mono use, or FM modulated.

Common controls have ADRS envelope control, High / Low / Band pass filter with Envelope and tracking control. Ring modulator and Play mode selector for Unison / Duo / Poly. 2 re-triggerable LFO's with delay.

Currently working on the routing section that will allow pretty well anything to modulate anything else stored as separate routes - up to 12 routes can be applied at once. Then patch storage and recall, and hopefully some nice analogue FX at the end.

In the clip, all the audio is straight out the back of the DAC with no processing or FX."

MiracleDrone


video upload by Tim Kaiser

The sound of a toaster.

Friday, May 01, 2026

GOLDEN ORCHID - custom synth


video upload by Love Hultén

"Springtime is here, full bloom 🌸 This is Golden Orchid - my reimagination of the Orchid ORC-1 chord synth combined with a custom tape echo."

Wednesday, April 29, 2026

A Prophet-5 Style Stereo Filter: Thonk DOUBLE BUBBLE Demo


video upload by mylarmelodies

"A good ol' filter demo like it's 2008, except it's '26! Thonk's Double Bubble is a stereo Prophet 5-style "2040" DIY-kit filter (and VCO!) with crossmod and feedback capabilities that can make it go from classic to nuts.

Thonk hired me to demo this module in a video. Thanks Thonk! This thing really is a beaut (and their VCO is really good, myself and Divkid were playing with one the other day and it tracked the best part of 10 octaves)."

See the announcement post here.

Introducing Shadowbox by stretta


video upload by stretta

"Shadowbox is a lightweight Raspberry Pi runtime/control layer for RNBO patches: it runs on the Pi, discovers or connects to an RNBO runner, and provides a small hardware-oriented interface for viewing and adjusting patch parameters. In short, it turns a Pi into a self-contained, tactile RNBO instrument/controller box.

Shadowbox Github
https://github.com/stretta/Shadowbox"

Tuesday, April 28, 2026

Sequentix MKS-8E Envelope curves


video upload by sequentix

"Details of the new envelope features on our CPU upgrade for MKS-80
(Next time I'll try to pay more attention to focus and audio levels)"

Tubbutec Custom MIDI Controller


video upload by Tubbutec

"Design your own MIDI controller using our Designer tool - we will build it for you.

https://tubbutec.de/customcontroller/

Music: Neukölln Ensemble - Reaching Out

Up to 25 faders with LEDs
Up to 12 pots with various knob options
Up to 8 buttons with various color choices
Up to 20 LEDs to show button states, various shapes and sizes
Full color printed FR4 front panel
A layered architecture with up to 4 layers
MIDI input and output via TRS-A MIDI. Adapters to DIN are included
USB MIDI connection
MIDI router for USB, DIN and controller data allows the connection in multiple ways
Also works as a USB MIDI to TRS MIDI interface
Can be powered from a USB host or standard USB-C power supply
Powder coated sheet metal case 14 x 11.5 x 1.8cm, black
Easy configuration change via MIDI
Firmware update via USB"

Friday, April 24, 2026

New FREQY, EPILOGUE VCF, & Rong Mid modules by nonlinearcircuits


FREQY video upload by cirtcele

"Frequency Shifter without dome filters"

EPILOGUE VCF

video upload by cirtcele

"Low pass filter with some unusual feedback paths"

Rong Mid

video upload by

"Ming Rodulator with VC phase control"

Thursday, April 23, 2026

Spark - A Portable Open-Source Synth (based on ESP-32 and AMY)


video upload by povle

"Meet Spark - a portable open-source synth running the AMY synth engine."

00:00 DX7
01:11 Sampler
02:09 Juno-106
03:23 BLE MIDI

https://github.com/povle/spark-synth


"Really wanted something OP-1 sized but more performance focused (and cheaper), so i made it myself. It runs on AMY, i've currently added the built-in patches and implemented a BLE MIDI keyboard mode, later will start adding my own instruments.

Originally planned to use korg nanokey2 as the keybed, but the feel was so bad that i had to switch to low-profile mechanical key switches.

Overall extremely happy with the result, especially given that it's my first big electronics project"

Tandberg instrumentation recorder controlling a synthesizer


video upload by A Radiophonic Shed

"This Tandberg Series 115 instrumentation recorder is a scientific logging device from the 1970s.
Voltage changes detected from scientific instruments are recorded as frequency-modulated signals to four separate tracks on ¼" magnetic tape. When the tape is played back for analysis, those same voltages can be examined - replaying the experiment.
Here we have recorded 1V/octave pitch voltages from a keyboard, and now we're replaying those same voltages into a modular synthesizer - all the sound is coming live from the synthesizer, it isn't an audio tape recording.

More details: https://shedsynth.wordpress.com/2026/..."

And a short video featuring the Tandberg as a VCO along with a full view of the front:

Tandberg 115 as a VCO – electronic music from old test equipment

video upload by A Radiophonic Shed

Monday, April 20, 2026

Supra brings Temporal Synthesis to the Masses!


video upload by Musical Miscellany & More

"A while back, I took a look at the Pet Rock temporal synthesis module. Supra is the follow up to that module. It produces different rhythms, CV, and melodies based on the passage of time. It actually pairs nicely with Pet Rock.

You can purchase one here: https://synthcube.com/supra-time-trav...

Intro - 0:00
Build - 1:10
Pet Rock Demo - 2:03
Supra Demo - 3:40
Final Thoughts - 10:01

Learn more here here: https://suprasynth.site

Buy Me a Coffee: https://buymeacoffee.com/musicalmisce..."

Introducing Supra (the Eurorack time travel playground - from the maker of Pet Rock)

video upload by Jonah Senzel



Time Travel CV Playground
A new Eurorack module from Jonah Senzel, creator of Pet Rock

Input & Output Jacks
The top of the module features eight jacks labeled for dual-hand control:
Left Hand in 1 & 2 (Top left)
Left Hand out 1 & 2 (Bottom left)
Right Hand in 1 & 2 (Top right)
Right Hand out 1 & 2 (Bottom right)
Core Controls
SWAP BUTTON: * Switches which hand you're viewing and controlling.
The other hand continues to run in the background.
Hold to place a new object in the current hand.
JOYSTICK: * Up, Down, Left, Right, and Click (Push In).
MENU: * Menu with extra features of current mode.
OPT: * Extra button for use in some modes.

Saturday, April 18, 2026

GreyScale-ChainReaction #kosmos #renoise


video upload by plantssystem



"Hybrid pulse born from KOSMOS and Renoise.

Generative motion meets tracker‑precision, creating a chain of evolving reactions in sound.

Organic drift and digital sharpness collide in this new GreyScale experiment."

A Demo of mods driving the TastyChips Integral dual convolver pedal


video upload by ParadisoModular

"As I recently finished modifying my 'Integral' dual convolver pedal by TastyChips (https://www.tastychips.nl/) to accept control from multiple external CVs and gates, here's a quick demo video. After a few minutes of showing the Integral's front panel being driven by my external CVs, I switch to showing more detail on my mods and the patch that runs it. This patch also gave me a chance to explore my TipTop Matrix Sequencer, where you dial in 16 pitches from which you can extract 10 sequences that traverse the note matrix in different ways. I crossfade periodically between these 10 lines driving different tone sources (reversing them occasionally to give a bit of variety) - this provides a dynamic and harmonically-rich base upon which to run the Convolver, which produces all of the effects that you hear.

My mods let me turn essentially all of the knobs with external voltages (I also have a gate input for the 'shift' button so I can get at the secondary functions of these knobs too), and indeed, I do that here. All of the knobs are being turned constantly by different LFOs. This pedal sports two convolvers - the panel's knobs affect the one that's displayed, but also I provide a periodic pulse to the 'select' knob (which I gated in the pedal so it doesn't hit when 'shift' is active to avoid going into a menu), which toggles control to the other convolver. So this patch, simple as it is, spans a lot of sonic space...

The Integral is a wonderful box - it sports two convolver chains, and you can select from circa 100 different impulse responses (plus add your own via a USB stick). Convolution is a general operation that spans across reverb, echo, filtering, etc. - you essentially inherit the character of the chosen impulse in the driving waveform. It's not a real-time operation in principle (the convolution integral for each sample goes across the entire impulse) although there are ways of speeding and breaking the operation up to approach real time (plus this pedal allows you to window the integration over the stored impulse). It's a very deep pedal - and in using it, I saw right away how turning several of the knobs at once can get you to interesting modulations and textures while they are moving (the expression input gives access to only one parameter - I use it now for the convolution cross-fade, as I couldn't get to that input with my mods). TastyChips used to make a Eurorack module giving some of this flexibility, but it only included one convolver. The Integral pedal has 2 and is a current product, hence reinforcing my decision to acquire one and essentially 'turn' it into a versatile synth module.

My sequences here are a bit major-key/unsophisticated (all notes have to work potentially on top of each other and in whatever sequence it picks), and the pedal occasionally gets briefly into strange territory - hence this demo only hints at where this beast can go (every impulse response has a different character too). And turning all of the knobs can occasionally push it into instability - I will probably use fewer when I take it out for a real spin. More coming with this one in future patches, but in the interim, here's this trial demo..."

Thursday, April 16, 2026

WIESENBERG 2 synthesizer sound demo


video upload by the VAPE

Tuesday, April 14, 2026

Sketchy Labs DS-3100 Fully Polyphonic Synthesizer, Part 1: The Beast


video upload by Doc Sketchy

"After stringing along my followers on Mod Wiggler, I have finally made a video demonstrating the core circuitry of my polyphonic synthesizer project, the DS-3100 -- my homage to the Korg PS-3100, but done in Doc Sketchy style, with PCBs laid out in Excel, fully handmade and based entirely on my own original circuitry."

Plasma OptoSynth


video upload by Tim Kaiser

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