Jamming with the CRUM DRUM

video upload by Albert Nyström

0:00 Fast Beat
1:05 Generative Ambient
2:20 4 On The Floor

Introducing CRUM DRUM - a generative drum synth!

video upload by Albert Nyström

Details via Thonk

"Crum Drum is a 4-voice drum machine with built in randomisation and probability based sequencing designed by NYSTRÖM

Rhythms can be created and manipulated using the internal random sequencer or externally via MIDI USB. Press the beat button to generate new rhythms, adjust the probability to create continuous variations, and increase the randomness to modulate the sound of your beats! Generated sequences can also be sent out via MIDI and Crum Drum can also sync via analog clock in and out.

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Albert Nyström Made a Drum Machine for $70

video upload by Albert Nyström

"Here's a Drum machine I designed and built over the last 3 months using a Teensy 4.1 as the main brain.
The total build cost was about $70, 30 of which was the Teensy itself.

I'm pretty happy with how it turned out and I´m considering making a 2.0 version in the future that will be for sale!

Here's a link to the Code, Schematics and more information about the project:
https://github.com/albnys/Drum-Machine

0:00 - Intro
1:00 - Funky Jam
1:30 - Hat n Snare Jam
2:00 - Ambient Industrial Jam
2:30 - Fast DnB Jam
3:25 - Walkthrough
4:25 - Kicks
4:40 - Snares
5:20 - Hihats
6:25 - Other Functions
8:10 - FX
9:00 - Outro"

Tiny Bug - a mini glitch Synth!

video upload by Albert Nyström

"This is a little synth I recently built.
It´s kinda based around an Atari punk console, but I added a few bits and pieces to make it more fun and experimental.

Pretty fun to just mess around with and make some noise!"

Spaces - a DIY-Synth live session!

video upload by Albert Nyström

"This is a live recording using only my homemade synths. all sounds you hear comes directly from my own synths, except some reverb and delay. The only equipment used that I didn´t build myself is the Digitakt that acts as a sequencer as well as an audio interface.

The modular system plays the arpeggios & all percussion.
The analog Monosynth plays all bass stuff.
The Guitar-synth plays all lead sounds.

Hope you enjoy!"

See the Nyström label below for more.

Teensy-Poly6 Homemade Polyphonic Synthesizer!

video upload by Albert Nyström

"This is a 6-voice polyphonic synthesizer i programmed and built from scratch using a teensy 3.5.

The total build cost was around $120.

Here's a link to the code and a rough schematic:
(warning, it´s very messy and ugly heh)
https://github.com/albnys/TeensyPoly6

0:00 - Intro
0:50 - Distorted Fm
1:30 - Pulsating Pad
2:10 - Saw Lead
2:30 - Spooky Fm
3:15 - Funky Chords
3:45 - Funky Bass
4:20 - Bright bells
5:00 - Walkthrough
10:45 - Outro"

Looks like a four octave KORG Prologue. See the Nyström label below for more.

Homemade analog synth built from scratch & a Homemade analog Synth-Guitar by Albert Nyström

video upload by Albert Nyström

"Everything is analog (except the FX) and built by me from scratch.

0:00 - Intro
0:10 - Sync Lead
0:47 - Ambient Pad
1:22 - Bass
1:48 - FM Bells & Noises
2:35 - SuperSaw
3:14 - LFO-Octave Bass
3:42 - Triangle Lead
4:18 - Lasers, Kicks, Snares
4:55 - Weird noises
5:42 - Walktrough of features
9:45 - Pictures"

Some additional details from the comments:

On parts: "My best estimate is around $180 USD, ~70 of which was the Keystep that I used for the keyboard."

On design: "I built everything myself, but took inspiration from exsisting schematics. The filter is based on Mortiz Kleins vactrol VCF, the envelopes are based on Thomas Henrys 555 envelope and the VCOs are built around the AS3340 chip! The effects are the only part I didn't build myself, Search for 'dsp 100 reverb' on aliexpress!"

Homemade analog Synth-Guitar!


0:00 Bass sound
0:50 Saw Lead
2:18 Ambient Lead
3:07 "Guitar" Lead
4:04 Walkthrough

"Fully analog, fully homemade guitar-synth
Built from scratch, based on a few different schematics aswell as a few own designs for some of the functions.
The pitch is controlled by two soft-pots tuned a 4th apart, just like a guitar.

The body is mostly made of stained plywood and the knobs are made of dowels that i cut and sanded to size!

The synth is accompanied by a couple of beats I made on my digitakt!

Hope you enjoy!"