MATRIXSYNTH: DIY


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

Friday, April 19, 2024

Erica Synths Introduces EDU DIY SNARE DRUM

Designing a simple analog snare drum from scratch

video upload by Moritz Klein

"No drum machine is really complete without a punchy, snappy snare. Together with the kick, it creates the rhythmic backbone for most grooves.

So in my ongoing quest for creating a Roland-inspired modular drum machine, I knew I had to come up with a snare circuit that would complement the kick and hi-hat I‘ve already designed. After a lot of fine tuning, I landed on a circuit that can emulate a TR-606, TR-808 or TR-909 snare."



No drum machine is really complete without a punchy, snappy Snare Drum. Together with the Kick, it creates the rhythmic backbone for most grooves. So for our percussion-focused second season of educational DIY kits, we knew we had to come up with a Snare circuit that would complement the Kick and Hi-Hat we’ve already released. After a lot of fine tuning, here’s what we came up with: introducing mki x es.edu DIY Snare Drum.

Features
Manual and CV controlled Tune
Tune CV depth attenuator
Manual Attack and Decay control
Manual and CV Snappy (noise and tone crossfade) control
Accent input

We – Erica Synths and Moritz Klein – have developed a series of educational DIY kits under the brand name mki x es.EDU with one specific goal in mind: to teach people with little-to-no prior experience how to design analog synthesizer circuits from scratch. What you’ll find in the box is not simply meant to be soldered together and then disappear in your rack. Instead, we want to take you through the circuit design process step by step, explaining every choice we’ve made and how it impacts the finished module.

NB! All kits in these series are simple and come with extensive user manuals which can be downloaded separately, therefore we will not provide customer support in case your DIY build fails to function or similar.

Wednesday, April 17, 2024

Dual Moog MF-Delay Mod


video upload by Ground Grown Circu

"My dual delay made from two moog mf delay pedals"

ZIRCOTHC ESP32 DRUM SYNTH LOFI MACHINE


video upload by zcarlos zc

"ESP32 drum synth Lofi machine.
Sound demo of my DIY drum (or noise) machine.

Hardware:
- Lolin S2 Mini (ESP32 S2)
- PCM5102A I2s dac
- 24 push buttons (8x3)
- Rotary encoder
- OLED display I2c
- 32 LED WS2812B

Synth engine:
- Wavetable synthesizer based on DZL Arduino library "The Synth" (github.com/dzlonline/the_synth)
- 16 sound polyphony
- Sound parameters: Table, Length, Envelope, Pitch, Modulation, + Volume, Pan and Filter.
* Filter (LowPassFilter) comes from Mozzy library (github.com/sensorium/Mozzi)

Sequencer:
16 step/pattern editor and random generators (pattern, sound parameters and notes)

Soon schematics and code."

Previously:

ESP8266 DRUM MACHINE V2

video upload by zcarlos zc 5 years ago in 2019

"ESP8266 DRUM MACHINE V2
2 MPR121 modules (24 keys)
1 I2S DAC
4 potentiometer (i2c ADC ADS1115)
RGB neopixel style leds

More info: https://zircothc.wordpress.com"

ESP8266 DRUM MACHINE

video upload by zcarlos zc also 5 years ago in 2019

ESP8266 DRUM MACHINE
2X MPR121 modules
1 MAX7219 module
1 I2S DAC
24 Green/Red LEDS

More info: https://zircothc.wordpress.com

Tuesday, April 16, 2024

9 BPF VOCODER


video upload by Unrelated Activities

"9 BPF per bank VOCODER

Thanks for watching."

Monday, April 15, 2024

Paia 4700 1970's horror vibes


video upload by Tinfoil Cat

"Just using raw oscillators without a filter, good to have three of them. The bass is a Minikorg 700S, I think. Drums probably PO-32. Sorry for the reverb hum, have to shield that tank..."

WEIRD SYNTHESIZER


video upload by GlakGlikGluk

"udah gitu aja"

Saturday, April 13, 2024

New Barton BMC108 Midi2CV Demo


video upload by boogdish

"A new DIY synthesizer module design. This lets you use a keyboard, sequencer or other MIDI controller with your modular synth. Two sets of CV/Gate/Trigger outputs with keyboard split, multiple note priority sets, bend inhibit and midi clock output."



via Barton Musical Circuits

"This is a two voice Midi to CV converter module. It has a keyboard split option allowing you to separate the keyboard into two separate synth voices, tune mode, multiple sets of note priorities for when more than two notes are played at the same time, options for inhibiting note bend on an individual output and output for the MIDI clock.

The PCB is set up for attached 3.5mm jacks and a detached MIDI input jack. If someone wanted to adapt it to a +/-15V system, no parts changes would be required."

Love Hultén Nymphes Custom MIDI Guitar


video upload by Love Hultén

Looks like it has the Dreadbox Nymphes built in.

Wednesday, April 10, 2024

RECO-SYNTH ::: RED AXES 2 :::


video upload by Arthur Joly

"another synth for the band Red Axes"

Tuesday, April 09, 2024

Overlooked Module #14: Synthrotek CF Crossfader


video upload by Musical Miscellany

"It's been a while since I've posted an Overlooked Modules episode. Today, I'm taking a closer look at the Synthrotek CF (Crossfader). This completely passive 2hp module is one every wiggler should own. It's not only handy to fill small gaps in your system, but it's genuinely useful in your patches. And since it's passive, you don't even need rackspace to use it.

Module page on Synthrotek's website: https://store.synthrotek.com/Crossfad..."

Sunday, April 07, 2024

Jurgen Haible Living Vocoder MINT

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


via this listing

"20 band analog vocoder

Based on EMS 5000 with some improvements

Made by a pro tech using only branded parts from Mouser, Arrow, Digikey

Also some vintage NOS ICs are used

1% Polypropylene capacitors in filter chains

1% metal film resistors

Electronics is housed in a nice plywood case

It's the best vocoder you can find for the money"

Saturday, April 06, 2024

JCS BN-1 "Bakery of Noise" Digital PCM Synthesizer – One of a Kind

Note: Auction links are affiliate links for which the site may be compensated. "JCS BN-1" 4-Bit Linear PCM Synthesizer - Part 1 (Prototype)

video upload by blarrer20

"JCS BN-1" 4-Bit Linear PCM Synthesizer - Part 2 (Finished)

video upload by blarrer20

"This video demonstrates the final version of a 4-bit Linear PCM synthesizer that I have designed and built over about two months. It makes use of mostly Soviet clones of 7400 and 74LS series TTL chips, with no microcontrollers involved. It has a 256 x 4 SRAM chip that allows the user to program whatever waveforms may be desired, with looping capability, and starting at whatever point desired. Most importantly, it is able to be controlled by an external source, for example a keyboard instrument. It also has a frequency doubler circuit. This video is part 2 of 2, showing the finished product.

If you want to skip right to the sounds, go to 27:08"



via this listing

Pics of the inside below.

Details from the listing:

04 05 24 Mos-lab 2500 - Filter


video upload by batchas

"All voices are processed by a 1006 filter. Nothing spectacular here in this excerpt, but I'm sharing it to show how the filter can affect the character of the sound at the output."

04 05 24 Mos-lab 2500


"I'm still working on the pin matrix and as I'm spending a lot of time on the computer, I played a very short session this evening to change my mind."

Friday, April 05, 2024

VEKT - Portable Drum Computer V.4


video upload by uszymyszy

"Hi! Here is v.4, I redesigned the enclosure to be more rugged, we have also a battery and speaker. Most of the errors are solved, the UI is quite cluttered yet and I make a lot of missclicks/wrong shortcuts but after some tweaks everything should go fluent.

The idea is to have a pocket version of Ableton workflow, simplified but easy enough to create sketches for further polishing in DAW. I plan to build several units for testers but is still a lot of work to do and I cannot guarantee anything at the moment. I will try to progress as much as possible to finish this in this year."

And from one year ago:

Vekt - Portable Drum Computer

video upload by uszymyszy

"I built a Pocket Operator alternative. It can now record and play internal synths. There are 4 engines:
- Bass (Roland TB-303 mod),
- Lead (8bit style),
- Braids (implementation of Mutable Instruments eurorack module),
- Wavetable (several waves mixed by knobs)

I hope the UI is self explanatory, it is focused on simplicity and uses Ableton-like mini session view to launch clips"

The first prototype was shown 3 years ago on reddit.

It looks like a Dirtywave M8 tracker, but is different in both build layout and function. From the creator:

"M8 is a stunnig device for complex projects, I plan to keep my Vekt operator more like pocket op where you can quickly create sketches/ideas and polish them later on DAW. And the main idea for me personally was to quickly create rhythmic sequences which I can use with my visualization app instead making them in DAW, this will speed up the process."

[$11] DIY eurorack modular synth SSI2140 VCF | 4pole Low Pass Filter


video upload by HAGIWO

"My 77th original eurorack modular synth DIY projects.
4 pole low pass filter based on SSI2140 VCF IC.

working documents (schematics)
https://note.com/solder_state/n/n9fd3...

Study of SSI2140 Q VCA function (patreon)
Video of waveforms when tuning the resistance of the SSI2140 Q VCA.
https://www.patreon.com/posts/study-o..."

Thursday, April 04, 2024

Ksoloti Gills Open Source DIY Desktop Unit



via Ksoloti

"Gills is a standalone desktop unit using the Ksoloti Core

Ksoloti is an environment for generating and processing digital audio. It can be a programmable virtual modular synthesizer, polysynth, drone box, sequencer, chord generator, multi effect, sample player, looper, granular sampler, MIDI generator/processor, CV or trigger generator, anything in between, and more.

Ksoloti is an environment for generating and processing digital audio. It can be a programmable virtual modular synthesizer, polysynth, drone box, sequencer, chord generator, multi effect, sample player, looper, granular sampler, MIDI generator/processor, CV or trigger generator, anything in between, and more.

The Ksoloti Core is a rework of the discontinued(?) Axoloti Core board. In short, Ksoloti aims for maximum compatibility with the original Axoloti, with some layout changes and added features. The Axoloti Core hardware board became unavailable at some point, but because Johannes graciously open-sourced the schematics (and since the global part shortage somewhat improved) it was possible to recreate a board nearly fully compatible to the original: enter the Ksoloti Core.

Using the Patcher software on your computer, you create your own sound patches by placing and connecting sound objects, or explore patches other users shared. You can edit any existing patches and even objects, or write entirely new ones from scratch. When you are satisfied with your patch, you can upload it to the Ksoloti Core’s internal memory – or save a collection of patches on SD card – so you can play it without your computer connected.

The fun really starts when you connect pots, buttons, LEDs or displays, sensors and more to control your patches and make Ksoloti a tactile and highly playable hardware instrument.

Board dimensions and layout aside, the two main hardware differences to the original Axoloti Core are:

Ksoloti Core does not have any audio and MIDI jacks on-board.
Ksoloti Core has more pins and functions broken out to headers.
Full information on getting started with the Ksoloti can be found on Ksoloti github here: https://ksoloti.github.io/"

Wee Noise Maker PGB-1 – The all-in-one open-source pocket groovebox


video upload by Crowd Supply



via Crowd Supply

"Wee Noise Makers PGB-1 is an advanced yet portable sequencer that lets you craft complex musical pieces anywhere. This all-in-one, open-source, customizable device is designed to empower aspiring musicians, seasoned creators, and makers. It isn’t just an instrument—it’s your gateway to the world of music production and audio synths.

Rock Out, Anywhere
PGB-1 has an open-source stock firmware that makes it a playful and powerful groove box. It allows you to craft complex musical pieces with drums, bass, lead, samples, reverb, bitcrusher, overdrive, and others.

Orchestrated by an advanced sequencer with conditional steps, repeats/ratcheting, pattern chaining, chord sequencing, song mode, live sequencing effects, and more. And it’s also a hackable and customizable device, with CircuitPython, C\C++, and Ada support for programming your own synthesizers, video games, or any audio based projects.

Features & Specifications

Processor: Raspberry Pi RP2040

16 MB Flash
Audio IC: Cirrus Logic WM8960 (or equivalent)

Up to 32-bit at 48 kHz digital audio link
On-chip Headphone Driver, 1 W Stereo Class D Speaker Driver
Up to 3 stereo Line-in/Microphone interfaces
User Interface

128 x 64 monochrome OLED screen
24 addressable RGB LEDs
30 tactile switches
1 capacitive touch strip
Input & Outputs

1x USB Type-C (Power & Data)
1x 3.5 mm Headphone/Headset
1x 3.5 mm Audio Line-in
1x 3.5 mm MIDI Input (TRS type-A)
1x 3.5 mm MIDI Output (TRS type-A)
Internal microphone
Open Source
PGP-1 is an open hardware project. Right now, you can browse the GitHub repo for the device’s firmware. Later, we will make the schematics available to the public."

Wednesday, April 03, 2024

VOCODER, 7 bands, analog (with schematic)


video upload by Unrelated Activities

"VOCODER, 7 bands, analog (with schematic).

Thanks for watching."

Thomas Henry VCF-1 State Variable Filter.


video upload by EdEditz

"A test and demonstration of the Thomas Henry VCF-1 State Variable VCF which I built on stripboard. It's an absolutely beautiful sounding filter with three output modes which you can use at the same time. Lowpass, Highpass and Bandpass.
In this test I did not have the 1 Volt per Octave input connected.
You can find full instructions for building this filter (and over 50 other synthesizer DIY projects) for stripboard on my website: https://www.eddybergman.com"

Monday, April 01, 2024

Yamaha DD-8 1992 Drum Machine with Custom Mods

Note: Auction links are affiliate links for which the site may be compensated.
video upload by Canned Sound



via this listing

"Yamaha DD-8 1992 drum machine featuring a 20-point modulation patch bay. The unit also includes a joystick for immediate performance of four additional effects which are also combined on the diagonal axes for further processing options.

Both of these custom modifications unlock an array of original sounds and rhythmic variations; making a single connection on the patch matrix alters the output but applying multiple connections produces an increasingly complex, sometimes aleatoric range of reversed, tonal, bit crushed, flanged, distorted, aliasing and delayed sounds, additional accents, rhythmic patterns and digital noise. Additionally, the five included patch cables can be stacked for further sonic manipulation.

The DD-8 includes a wide range of rhythmic styles, sound effect samples, 9 percussion sets and echo, flam and roll effects.

The patch bay and joystick affect the 100 tempo adjustable onboard rhythms and, depending on the connections, the velocity sensitive drum pads. The 20 different preset drum and percussion sounds can be individually assigned to each pad. The unit functions as normal when the patch bay is not implemented.

Mains (9- 12v DC) and battery powered (6 x AA), features a 1/4" output, no onboard speaker."
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