Fixing up a 1985 Oscar clone

video upload by Craig Barnes

"This is the repairs to my 1985/86 hand made Osc Oscar clone, the famous Moog Oscar from Sound on Sound June 2004. I finally received it back after around 38 years apart. It's had some refurbs and mods and travelled extensively. Europe and the states and eventually wound up in Berlin. I received it dead with no boot. MIDI board was loose, but it couldn't be that simple. No sound from the synth and after getting it to the panel mode and tweaking a few knobs I eventually got it to make a weak sawtooth sound. Lower half of the keybed was dead so I replaced the 5x 4051 chips that read the keyboard and the 7 that read the front panel. Then I removed the aux input mod and upgraded to the Tauntek midi board. A little scratchy in places but nothing that can't be fixed."

DIY eurorack modular synth | MOD2 Break beats : 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.

Break beats:
PCM break-beat playback module. Slice points are pre-programmed into the MCU and can be selected via CV."

https://note.com/solder_state/n/n33132a160afb

Overlooked Module #17: Wild Sync Fatmoog VCF / VCA

video upload by Musical Miscellany

"This is a really cool filter from Wild Sync. It emulates the classic Moog 24db/octave ladder filter but has a character switch for Bass (Minitaur) and Lead (Prodigy) variants.

Visit Wildsync's store on Etsy: https://www.etsy.com/shop/wildsyncgear

See more Overlooked Modules here:"

Overlooked Modules Playlist


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

[MON2 FW2.0] Sampling Daft Punk - Discovery with a 40-Second Limit (and Breaking It)

video upload by Monkhum craft and creative (ม่อนคํา ซีซี)

See the announcement post from 2024 here.

"What happens when you slice Daft Punk’s Discovery into 40 seconds—and drop it into a MON2?

Say hello to MON2: Soundscape Machine FW2.0 — a compact, hand-built synth + sampler from Chiang Mai, Thailand.

In this video, we used 40-second clips from Daft Punk’s Discovery album to show what MON2’s loop sampler can do. With its 6-oscillator synth engine, vertical OLED interface, 12 sample slots, and sound-sculpting FX (echo, distortion, LPF), you can transform iconic sounds into something totally your own.

💽 Load 12 WAV samples (max 40 seconds total)
🎚️ Sequence with 16 steps and real-time tweakability
🎛️ Layer with synths, FX, and MIDI over USB

—
🛍️ Get yours now:
🌐 Website: https://monkhum.cc
🛒 Etsy: https://bit.ly/3BUZfnw
🛍️ Shopify: comming soon
📸 Instagram: / monkhum.cc

CLICK FOR MORE »

Meet COSMOLAB by Faselunare – Modular DSP Kit for Makers & Musicians | Crowdfunding Soon

video upload by FASELUNARE

"🎛️ COSMOLAB is an open‑source modular DSP developer kit designed for companies, makers, musicians, educators, and anyone who wants to explore and create custom sound tools.

⚡ Powered by ‪@electrosmithco‬ Daisy Seed, Cosmolab lets you:
✔️ Prototype your own synths and audio processors
✔️ Build modular and reusable hardware designs
✔️ Experiment with sound like never before

🛠️ 100% open‑source and fully expandable – you can even design and add your own custom boards to make Cosmolab truly yours.

Cosmolab is made of 8 boards: Audio I/O, MIDI I/O, CV I/O, Display, Pots with double LEDs, and two keyboard options to build your custom synth.

🚀 We’re launching a crowdfunding campaign in September!

👉 Don’t miss out – join our mailing list to get early updates, sneak peeks, and exclusive launch rewards.

🔗 Sign up now at https://cosmolab.faselunare.com/

📢 Be part of the next generation of sound creation!"

Degenerator2 Loading Samples without Crashes

video upload by Rolf Degen

Drone Pod

video upload by Tim Kaiser

Unique Customised Oberheim DMX Drum Machine

video upload by Congohelium

"I modified this DMX with a full set of custom voice boards, expanded sounds and kits and a custom control panel for sound selection and tuning."

Pics and link to Reverb listing previously captured here.

A $20 MIDI synthesizer based on the SAM2695 chip (#seeed #XIAO-MIDI-Synthesizer)

video upload by Floyd Steinberg

"Here's the #seeed 'XIAO MIDI' #synthesizer, a $20 box based on the #SAM2695 synth-on-a-chip and the XIAO ESP32-C3 MCU. You can get it here: https://www.seeedstudio.com/XIAO-MIDI... Table of contents:

00:00 quick sound impression
00:12 hi
00:38 hardware overview
00:57 default firmware
01:50 creating a firmware that actually supports MIDI (shoutout to @SimpleDIYElectroMusicProjects )
03:12 build a 5 pin MIDI in plug
05:23 some sounds: piano
06:20 saw wave pad
06:34 "crystal ep"
07:13 analog pad
07:27 'glass pad'
08:05 synth brass
08:23 drum kit
08:33 on NRPNs and SYSEX using @intechstudio 's GRID controllers
09:13 NRPN explained (Filter cutoff frequency control)
10:54 SYSEX explained (Reverb time control)
11:38 calculating the checksum
12:20 live tweaking demo
13:01 same, but using multiple tracks
14:25 conclusion; some feedback to SEEED

Also check out https://github.com/kinoshita-lab/MIDI... which uses the same chip but already has a MIDI capable firmware. https://www.tindie.com/products/kinos...

HÄLP ZIS CHANNEL

https://www.patreon.com/floyd_steinberg
https://floydsteinberg.gumroad.com/
https://floydsteinberg.bandcamp.com/"


Features 1: Zero-Barrier Creation, Perfect for Music Beginners

With three preset modes and plug-and-play functionality, you can dive straight into music creation—no complex setup required. Built-in speaker and four tactile buttons deliver an intuitive, self-contained experience that eliminates external dependencies. Start making music from the very first note, no prior expertise needed.

Features 2: All-in-One MIDI + Metronome – Smarter, Smoother Workflow

XIAO MIDI synthesizer comes with a pre-set Metronome Mode, where you can press the buttons to change your BPM and toggle the drum track to effortlessly sync rhythms and control your entire beats with one single device. No need for extra devices or apps.

Features 3: Pro-Grade Performance for Advanced Players

Open-source hardware/software architecture supports deep customization and advanced sound design. With 64-note polyphony and 128-note capacity, unlock limitless sonic possibilities—craft your own signature sound engine, whether you're a beginner or an audio hacker.

Features 4: Ultra-Portable & Fully Hackable

Pocket-sized design (71mm × 49mm × 28.5mm) lets you capture inspiration anytime, anywhere. The 3D printed enclosure is fully open-source for you to remix and customize—not just an instrument, but your personal music canvas.

CLICK FOR MORE »

DIY eurorack modular synth | MOD2 VCO : 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.

VCO:
V/oct tracking , 6 waveforms.

MOD2 is not a module designed for use as a VCO.
It has a limited number of CV inputs and cannot modulate the timbre.
It is a technical test program intended to verify functionality as a simple oscillator.

working documents
https://note.com/solder_state/n/nce8f...
https://note.com/solder_state/n/n2214...

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

TANDY TRIP

video upload by NOYSTOISE

"speed run through some functions of handmade drone machine. Sounds better through speakers.."



via https://www.noystoise.com

"The TRIP is an experimental drum machine made from a dual-voice drum chip. The drum chip has 8 pre-programmed rhythms. Only the sound chip was used for this mod. The rest of the circuit and enclosure are built from scratch.

FEATURES

-Global Pitch modulation
-8 preprogrammed rhythms with start/stop, and tempo-up/down
-Two drum voices; "TONE" and "NOISE"
-Two independent Envelope generators(one per voice)
-Two independent resonant Filters(one per voice)
-Two independent VCA's(one per voice)
-PT2399 Echo circuit with two independent mix knobs(one per voice)
-Dual 8-step analog Sequencer with reversing clock inputs
-VARI SYNC variable Sequencer Clock
-ARG Attack/Release Generator
-8 Roll/Flam EG trigger inputs
-8 input multi-use capacitive-touch keys"

You can find additional details and pics at https://www.noystoise.com

【新・楽器開発してみた 1】自作MIDIコントローラーのテストプレイ / yummy / raspberry pi pico

video upload by - WASHIYAMA GIKEN -鷲山技研

"自作の楽器「key-bowed」と同じような操作感で既存のシンセサイザーを演奏するためのMIDIコントローラー「yummy」を作成しました

「yummy」は
　7月5日「Hamamatsu Micor Maker Faire 2025」
で展示するので興味のある方はぜひいじりにきてください！

◆ X : https://x.com/washiyamagiken
◆ BLOG : https://washiyamagiken.hatenablog.com/"

Googlish:

"I created a MIDI controller called "yummy" to play existing synthesizers with the same feel as my homemade instrument "key-bowed". "yummy" will be exhibited at "Hamamatsu Micor Maker Faire 2025" on July 5th, so if you're interested, please come and play around with it! ◆ X: https://x.com/washiyamagiken
◆ BLOG: https://washiyamagiken.hatenablog.com/"

Degenerator 2 Fairlight CMI Feelings :)

video upload by Rolf Degen

"Degenerator 2
Polyphonic DIY Synthesizer & Sampler
Fairlight CMI Feelings :)

DIY blog: https://www.sequencer.de/synthesizer/..."

Midweek MIDIPan - fitting new enclosure and 9/8 improv

video upload by MIDI IN

"A friend and enthusiastic MIDIPan user kindly sent me an enclosure that he designed. I'm going to fit that to my MIDIPan and see how it looks. Then I'll do a little improvisation.
This is the @Hainbach video that I refer to: • This Rare Anatolian Drum Machine Hits Diff..." [posted here]

Meet Bela Gem Stereo & Multi

video upload by Bela Platform

"Get Bela Gem on Crowd Supply: https://www.crowdsupply.com/bela/bela...

The Bela Gem series comprises two boards: Bela Gem Stereo and Bela Gem Multi, both designed to transform the PocketBeagle 2 single-board computer into a powerful platform for real-time audio and sensor processing. Whether you’re an engineer, maker, educator, or researcher, these open-source systems provide the tools needed to create innovative audio projects with minimal setup and configuration.

Whether you need two or ten channels, the Bela Gem family of boards bring you flexible I/O and ultra-low latency for applications from haptic feedback to hearing aids. Due to the powerful quad-core 64-bit ARM chip on the PocketBeagle 2, advanced processing power gives you real-time digital signal processing, and all the flexibility that entails for your projects."

Troubleshooting & Repairing Electronic Music Synthesizers Book by Delton T. Horn

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

via this eBay listing

"This book is a must-have for anyone interested in electronic music or repairing synthesizers. It provides detailed information on troubleshooting and repairing various models of synthesizers. The author, Delton T. Horn, has years of experience in this field and shares his knowledge in a clear and concise manner. The book covers a wide range of topics, including repairing analog and digital synthesizers, troubleshooting common problems, and maintaining your synthesizer to prevent future issues. Whether you are a musician or a repair technician, this book is a valuable resource for anyone looking to get the most out of their synthesizer."

CLICK FOR MORE »

Transcript of Meng Qi @ CCOM Digiscore Workshop Lecture: The Complete Design Concept of Horizon

video upload by 合成少数派 Synthesis Minority

"During the Digiscore Workshop at the Central Conservatory of Music, where I was invited by Professor Ken Fields, I engaged in a conversation with everyone about musical scores and instruments. We explored the relationship between musical instruments and people, as well as the dual-natured thinking that Trent and I condensed in our musical instrument work, "Horizon." The students at the Conservatory posed many constructive questions, and I truly enjoyed the intellectual exchange with everyone. Here is the lecture transcript, and I hope it is useful to many others."

Atomic 29 - Crum Drum & Crum Hum

video upload by Love Hultén

"Patina experiment incl semi-generative Crum Drum and Crum Hum from nystrominstruments.com

The three stepper-pillars on top trigger via MIDI (generated by Crum Drum)"

Meet TANDY PAL - A Mini Mono-Synth Made From 90's RadioShack Musical Elephant Keyboard

video upload by NOYSTOISE

"Mini mono-synth made from 90's RadioShack musical elephant keyboard. More info at noystoise.com"

Luma-mu - Luma.Tools update to support PicoROM

video upload by DeftAudio

"The new version of http://luma.tools introduces direct support for reading and writing PicoROM EPROM emulator which makes it simple to use with Luma-mu for transferring sounds. You no longer need to install extra software for PicoROM, everything is running in Web browser (Chrome) and it's cross-platform."