DIY eurorack modular synth | MOD2 Sample Player : RP2350 based drum module

video upload by HAGIWO

"This module is an open source general-purpose Drum module based on Seeed XIAO RP2350.
Thanks to AI-friendly hardware design, it's easy to create software variations using generative AI.
With general-purpose components and a simple circuit, this module is affordable and DIY-friendly.

Sample player:
WAV sample player.
It is possible to save audio files up to a total of 20 seconds / 18 files.

working documents
https://note.com/solder_state/n/nce8f...
https://note.com/solder_state/n/na31f...

Code with WAV samples included
https://www.patreon.com/posts/code-fo...

PCB gerber data & PCB assy production data Download
https://www.patreon.com/posts/mod2-rp..."

Korg DW6000 rack mount conversion with editor

video upload by Craig Barnes

"I bought this DW6000 for £100 a few years back, after fixing a few issues and adding an editor it didn't warrant taking up a keyboard space, so I'm converting it to a 19" rack. First thing to do is build a condensed front panel."

Akai S950 SCSI Interface Design Project

video upload by Johnny Morgan Synth Dreams

"This video goes into detail on my design for the new Akai S950 SCSI board.

0:00 Intro
3:21 KiCAD layout
5:25 PCBWay
9:43 Assembly
13:17 Bracket Design
15:53 Mistakes!
17:38 Breadboarding the Fixes
18:34 Display Upgrading
20:08 V2 Boards
23:41 The Final Test

This video was sponsored by PCBWay
https://www.pcbway.com
Visit them for all you PCB prototyping needs - quick turnaround on PCB's and they offer a full selection of services, including design, board manufacture and assembly.

If you are interested in purchasing one of these boards for your AKAI S950, contact me via email for details. email: johnnymorgan808@me.com"

Yamaha CS 80 Autopsy

video upload by Really Nice Audio

"As legend has it, when the Fender Rhodes was turned on the CS-80 blew up! Let us investigate what has happened to the Yamaha CS-80.
This CS-80 belongs to Pete Townshend and is housed at the University Of West London.

https://www.uwl.ac.uk/study/study-fac..."

Friendly Stories about Computers / Synthesizers John Simonton Jr., PAIA

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

via this eBay listing

"Friendly Stories about Computers / Synthesizers - by John Simonton, Jr. PAiA Electronics founder. Subtitled: WHY Microprocessors are the greatest thing to happen to electronic music since voltage control and HOW to apply them. 72 pages of articles from Polyphony Magazine. Mainly deals with their 4700 series computer interface. Has a lot of 6502 assembly language listings. This is a great walk down memory lane of the very early days of microcomputer controlled synthesizers.

FREE bonus - 1989 PAiA 12 page catalog - MIDI SMPL Modules, Studio Equipment, Guitar Effects. Books Kits and More."

CLICK FOR MORE »

AYTracker by MIDI IN

video upload by MIDI IN

"I've spent a lot of hours this week on this project instead of the usual lucky dip. Here's what I've done so far using my AY tracker terminal-based software for RC2014 computers. I'm very pleased with it.

7-blade helicopter photo by Sgt. Seth Starr - DVIDS.net, Public Domain, https://commons.wikimedia.org/w/index..."

DIY eurorack modular synth | MOD2 Snare : RP2350 based drum module

video upload by HAGIWO

"This module is an open source general-purpose Drum module based on Seeed XIAO RP2350.
Thanks to AI-friendly hardware design, it's easy to create software variations using generative AI.
With general-purpose components and a simple circuit, this module is affordable and DIY-friendly.

Clap:
TR-808-style digital snare: sine-wave with pitch envelope + blue noise

working documents
https://note.com/solder_state/n/nce8f...
https://note.com/solder_state/n/nd5c8...

PCB gerber data & PCB assy production data Download
https://www.patreon.com/posts/mod2-rp..."

Tangram Sequencer TEST V02

video upload by MOS-LAB

"Le prototype du séquenceur avance plutôt bien. Dans cette version, il y a seulement la gestion des Gates sur un channel de 1X8 steps (le projet final comportera 4 X 16 Steps). Les boutons Run/Stop/Reset/Manual advance sont OK. Il y a un menu General Settings pour visualisation Tempo, bascule Clock Interne ou Externe (Clock Midi prévu plus tard) ; et un menu pour les paramètres du channel 1 (Mode de défilement / nombre de pas / Cv range)
La prochaine étape consistera à implémenter les potentiomètres de pas, avec quantisation interne + DAC externe pour 1V/octave, puis sélection ratchet à la volée sur pas désiré."

Pete Townshend's Yamaha DX1 Repair

video uploads by Really Nice Audio

"Join me in this passive examination of a faulty SMPS from a Yamaha DX1.
It belongs to Pete Townshend and is housed at The University of West London.
https://www.uwl.ac.uk/study/study-fac...

Disclaimer:
Working with mains voltage is extremely dangerous.

Music from my forthcoming ATMOS single Moon Tides written in collaboration with Dan Abel.
https://open.spotify.com/artist/27hh3..."

CeeS upgrade for Yamaha CS10, CS15 and CS30 Synthesizers

video upload by Tubbutec

"CeeS is an upgrade for Yamaha CS10, CS15 and CS30 synthesizers. It adds MIDI input and output as well as additional filter modulation sources."

https://tubbutec.de/cees/

CLICK FOR MORE »

The EV: A New Digital/Acoustic Hybrid Stringed-Instrument Synthesizer

video upload by Brian Lindgren

"The EV is a new digital/acoustic hybrid stringed-instrument synthesizer. The instrument’s FFT convolution algorithms combined with the unique and expressive synthesizer create a gritty and textured realism. Using a novel pitch-tracking technology the instrument achieves both high accuracy and low latency; in this way it overcomes the hurdles that have historically plagued pitch-tracking or ‘MIDI’ stringed-instruments. Most importantly, the EV is reliable, expressive, and enjoyable-to-play. The most unique feature of the EV is its sound. While the pitch-tracking technology allows for a responsive and accurate playing experience (which cannot be overvalued), the FFT convolution unlocks new dimensions of sonic possibility and a uniquely responsive electronic instrument. The parametric customizability of the synthesizers, transfer functions, and FFT engines (not to mention the timbral-responsive nature of the FFT convolution algorithms) allows for a responsive and far-reaching sonic palette. Most synthesizers utilize an interface for pitch input that forces the player to adhere to a ‘Western’ twelve-tone scale system, for example, a keyboard. As the EV is a fretless stringed-instrument, it allows for the creation of synthesized music of any particular tuning system. In this way it suggests the creation of music beyond the Western canon, suggesting myriad musical possibilities."

Olimpiadas do Joly - Live Analog Jam

video upload by Arthur Joly

Reco-Synth Jolymod
Simmons SDS 400
Waldorf iridium
Imagens : Vitor Bossa + Olimpics Youtube Old Footages

Making of - Olimpíadas do Joly

video upload by Arthur Joly

Click CC in the bottom of the player for subtitles.

DIY eurorack modular synth | MOD2 Clap : RP2350 based drum module

video upload by HAGIWO

"Thanks to AI-friendly hardware design, it's easy to create software variations using generative AI. With general-purpose components and a simple circuit, this module is affordable and DIY-friendly.

Clap:
TR‑808‑style hand‑clap.

working documents
https://note.com/solder_state/n/nce8f...
https://note.com/solder_state/n/n9e17...

PCB gerber data & PCB assy production data Download
https://www.patreon.com/posts/mod2-rp..."

Profree-4 Development Update 2025/05/28

video upload by PikoPiko Factory ピコピコファクトリー

Click CC at the bottom of the player for subtitles.

"Profree-4 Development Update 2025/05/28"

Description and Demonstration of a Synthesizer Module based on the LM567 Tone Decoder Chip

video upload by ParadisoModular

"This video illustrates and demonstrates a module I recently designed based around the LM567 Tone Decoder IC. I show it in 'musical' action both as a frequency detector as well as an audio effect that transforms an input waveform with a controllable and dynamic subharmonic-prone 'crunch'."

Degenerator2 Polyhonic DIY Synthesizer & Sampler

video upload by Rolf Degen

Reco Mini Bass - Tutorial Demo

video upload by Arthur Joly

Click CC at the bottom of the player for subtitles.

Degenerator2 Pholyphonic DIY Synthesizer/Sampler

video upload by Rolf Degen

"DIY blog: https://forum.pjrc.com/index.php?thre..."

E-mu Drumulator 8 Kits + MIDI upgrade board

video upload by Harry Axten

https://hkadesign.org.uk/d8km.html



"ROM switcher boards and third-party sound ROMs are nothing new as far as the E-mu Drumulator is concerned – in fact both were available while the machine was current. JL Cooper Electronics and others made 3-kit boards, and Digidesign (who later became Avid) got their start producing alternative sound ROMs for the Drumulator under their original name of Digidrums. That said, while the various alternative ROM sets are easy to come by these days, ROM switcher boards are not, and without one it’s a total pain to keep swapping chips in and out as you have to take out 8 screws on the underneath of the thing, lift off the lid, swap 5 chips over and put it all back together again.

8 Kits

I wanted a modification very much in the same style as my TR-707 ROM expansion board, with a number of kits that you can instantly switch between. As with that project, this is done without the need for any additional switches and instead uses a microcontroller to snoop on the front panel switch matrix. Kits are selected by holding down one of the bottom row of buttons marked 1-8 and pressing the ENTER button. The selection is remembered when the Drumulator is powered off too.

The Drumulator’s sounds are stored across 4x 16kB ROM chips, although they form one continuous region of memory. Thanks to this, and due to the way that they’re selected, it’s really easy to replace all four with a single large capacity chip. The 512kB flash ROM that I used can hold 8 kits worth of sounds, which works out nicely as that’s the stock sounds plus 7 of the Digidrums kits, including the famous Rock Drums kit:

Stock kit
Digidrums Alternate Drum Set 1
Digidrums Electronic Drums 1
Digidrums Electronic Drums 2
Digidrums Rock Drums
Digidrums Jazz Drums
Digidrums Latin Percussion
Digidrums African + Misc Percussion
Because each kit also has a corresponding modified program ROM (as the length of sounds, locations in memory and channel assignments are all hard-coded into the Drumulator’s firmware); the D8KM board also has an EPROM which contains the relevant OS for all 8 kits, and is connected to the Drumulator’s OS ROM socket with a ribbon cable. Fortunately the Drumulator doesn’t care if the OS ROM changes while the machine is running as long as they’re all the same version, which they are – ‘P3.00’, the final version.

MIDI

I chose also to include MIDI functionality as part of the upgrade, as most Drumulators don’t have it. E-mu did offer a retrofit, which has been cloned over the years, but it’s very basic and only does MIDI notes. The D8KM board on the other hand also offers the ability to sync the sequencer to incoming MIDI clock. Just set the Drumulator to external clock and if MIDI clock is available, it will automatically override the external clock signal and will also start and stop playback. If MIDI clock is not available the Drumulator will use the external clock signal as normal, including for the tape loading functionality."

Assembling An EXACT Replica of the Priceless EMS VCS3. The Cloney Project

video upload by LOOK MUM NO COMPUTER

"Time to build this beast! samples/livestreams and the mentionned longer videos are available here, which also supports the creation of these vid! not at all possible without it :D thanks. www.patreon.com/lookmumnocomputer"

LOOK MUM NO COMPUTER EMS posts