Bleep Labs Workshop Series Featuring The Spectroseq & Ganz-O

Dadgeek example - The Spectroseq

Published on Sep 12, 2016 Bleep Labs

via Bleep Labs: "I’ll be teaching a new workshop series for Dadageek starting next week. The classes are designed to be an absolute beginners guide to making light and sound with analog and Arduino. It will be once a week for 6 weeks with a final exhibition of what you create. The price is $250 and includes the materials, Arduino, bread board, components etc, that you get to keep!"

Video description:

"There's still time to sign up for my new workshop series! Starts Sept 20th!
http://www.dadageek.com/build-audio-v...

Here's a device I put together as an example for my classes at Dadageek.

It's a light painter where each row of 8 is read in order with the hue of the pixel controlling the pitch. Eight sine waves are independently controlled by the 8 rows while the eight columns are the steps.

This was a quick project to show what can be done with just a few components and some code.
More info on the class here.
http://www.dadageek.com/build-audio-v...

The 'screen is made of two pieces of thick Baltic birch that were cut on the cnc the have holes for each APA102. The from is just a piece of delrin. A teensy using its audio.h library is doing all the work.
You can check out the code here.
https://github.com/BleepLabs/dadageek..."

Dadageek example - Ganz-O


"Here's a device I put together as an example for my classes at Dadageek.
It's kind of a relaxation device that slowly changes color while lightning flashes and static swells. The rate is changed when it's touched.

This was a quick project to show what can be done with just a few components and some code.
More info on the class here.
http://www.dadageek.com/build-audio-v...

The screen is made thick piece of acrylic that's been CNCd with a simple pattern I made in blender. A teensy using its audio.h library is doing all the work.
You can check out the code here.
https://github.com/BleepLabs/"

Tokarev Protosynth V2 DIY audio synthesizer, MIDI control test from FL Studio MIDI out.

Published on Sep 8, 2016 Konstantin T

"Testing my handmade synthesizer for MIDI input, controlled by MIDI out plugin from FL studio."

DIY sound synthesizer "Tokarev Protosynth T32" stm32

Published on Apr 30, 2016

"A demo of my personal DIY synthesizer with sequencer design, called Tokarev Protosynth T32. Its based on the STM32F103 32 bit microcontroller. Output is done through a timer PWM output with a 4th order analog lowpass active filter realised on LM358 opamp. Cheers!"

This is the first Tokarev post on the site. Another new maker!

Schumann PLL clone - Synthesizer functionality

Published on Sep 9, 2016 ELTA music devices

"ELTA music devices PLL and Synthesizer Waldorf 2"

Note this is the first ELTA music devices post on the site. We have a new maker in town!

Open Source: Music Hardware Synthesizer (Supplyframe Original Series)

Published on Sep 6, 2016 Supplyframe

Tim Trzepacz is the man behind SoftEgg & Rhythm Core Alpha. He also developed a modular keyboard design as you can see below.

"(S1 / E4) Supplyframe DesignLab opened its doors this July to four creative resident teams building hardware projects in Art, Design, Technology, and Science. The new series 'Open Source' follows DesignLab residents step by step in their creations. Episode 4 explores resident Tim Trzepacz and the creation of his music hardware synthesizer the NanoEgg. After successfully launching a software synth developed for the Nintendo, Tim has begun the journey creating a fully analog hardware synthesizers.

http://supplyframe.com
http://supplyframe.com/designlab"

via 3dprint.com

"'I also do crafty stuff like display stands for my product and portable stages and such,' Trzepacz says. 'I love performing, and will play music anywhere. I’m really active in the greater Los Angeles chiptune scene, and for that, I need to make interfaces to do stuff on Arduino and Propeller boards.'

Now with this multi-part design for a synthesizer controller keyboard, Trzepacz says he wanted to create a modular design which would allow designers to 3D print as many sections as they need."

Voxarray 61 - DIY modular synthesizer

Published on Sep 4, 2016 Love Hultén

"For more info: lovehulten.com"

"Voxarray 61 is a modular music environment, and a tribute to iconic synthesizers from the 70’s. It’s main body, crafted from ash, is divided into two segments. This clamshell construction rests on a weighty 4-legged stand handmade from steel. A ball handle applied to fold/open the lid doubles as pitch and modulation when detached and inserted next to the semi-weighted MIDI keyboard. The top lid stores an array of analog and digital audio modules, and like most module synthesizers, they all connect using a variety of patch cords, creating a matrix patching system. To use external devices, just patch them through the matrix. Add the custom-made dynamic microphone on top to complete the setup."

"​HARDWARE SPECS

Meeblip Anode - Monophonic synthesizer
PianoBox Mini - Midi module
TC Helicon VoiceTone C1 - Hardtune and correction
TC Electronic M350 - Effects & reverb processor
TC Electronic Ditto Looper - Looper
Boss OS-2 - OverDrive/Distortion
​
Behringer UM2 - Audio interface
Behringer MS16 - Monitors
Sennheiser E835 - Dynamic microphone"

CLICK FOR MORE »

VBrazil Overfolder Module Prototype

What's an Overfolder? Published on Aug 18, 2016 Quincas Moreira

"Playing with the new VBrazil Overfolder module prototype! Coming soon to a diy shop near you :)"

DIY Synthesizer - Experimenting with Effects

Published on Aug 17, 2016 Trance Zero Space

"This is a rough demonstration of a home-made synthesizer named the 'ESL i-Lander.' The synth is a combination of purposely short-circuited electronics from a toy keyboard and parts from a MIDI keyboard that utilize iPad effects synthesis. iPad programs used are Audiobus, Loopy (to create loops from the audio of the ESL i-Lander), Turnado by Sugar Bytes (MIDI effects synthesis), and Cubasis (the DAW recording all audio)."

DIY Synthesizer

Published on Aug 14, 2016

"Making sounds with a home-made synthesizer that is a combination of purposely short-circuited electronics from a toy keyboard and parts from a MIDI keyboard that utilize iPad effects applied to the short-circuited sounds. Toggle switches, a big button, and a small reset button were applied to the new, short-circuit sounds of the toy keyboard electronics."

New CEM3340 VCO Eurorack Module Coming from nonlinearcircuits

via nonlinearcircuits

"I generally prefer to use generic components for new designs, but couldn't resist making a module for the newly re-released CEM3340 VCO IC.

This is very much based on the Aries AR-338 PMS VCO, which features phase modulated sync and a pan-pulse output. The AR-338 used a SSM2030, so it was not too hard to modify the sub-sections to suit the CEM3340. As you can see, for such a feature rich VCO, there are not all that many components."

The back of the panel.

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New Rimples Eurorack Module Coming from nonlinearcircuits

via nonlinearcircuits

"A ring modulator with a phase locked loop to do the modulating! The PLL can be set to lock tightly, loosely or not at all with the incoming signal. What could go wrong?"

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RyuX CEM3320 Filter VC

Published on Aug 2, 2016 RyuX

"This is my eurorack filter with a Curtis CEM3320.
2/4 pole switchable, normal / hard saturation, 2 channel mixer, resonance and frequency cv.
Playing around a little bit"

"Based on Digisound 80-6A."

Update: I asked RyuX if this was a one off or if they would be made available in any form. He said, "I have made a couple of PCBs for the prototype, of course i had to do some modifications to have it fully working. It would be possible to give away some PCBs along with Instructions. I don't plan on giving away completed modules as the CEM3320 Chips are very rare."

There were rumors of the CEM3320 being re-issued when the new CEM3340 was announced, so there might be some hope.

Ninstrument TRISPECTRUM Prototype Eurorack Module Based on Three WMD/SSF Spectrum OSCs

via Ninstrument where you'll find additional pics and details.

"I mentioned the TRISPECTRUM in the last video I published below. The start of that voyage was getting and using just one Spectrum OSC from WMD & SSF. Once I had a chance to really put that OSC thru its paces, I have to admit I really fell in love with it. Those guys nailed it as far as I was concerned. The more I used it, I thought, “this would be even better if I could stack three of them together”. Having the ability to sync all three and individually pull each one in and out of sync would be cool. Waveform switching like on the Mini Moog and mutes and attenuators made sense from a performance aspect as well.

The Ideas came hard and fast. Before you knew it I had my first prototype. Pictured here."

Wav Trigger Eurorack Module with 16 sockets , triggered by Game System , Modular Sampler

Published on Aug 1, 2016 HOX808

"The famous Korg Minipops 7 sounds loaded onto the SD card. controlled by various sequencers."

Info on Wav Trigger board used in this module by HOX808, via sparkfun:

"Description: The WAV Trigger is a unique high-fidelity polyphonic audio player with surprising capabilities. Supporting up to 2048 uncompressed 16-bit, 44.1kHz wav files – the same quality as an audio CD – the WAV Trigger can play and mix up to 14 stereo tracks simultaneously and independently, with very low latency. Tracks can be controlled via 16 programmable trigger inputs, or by using a native serial control protocol or even MIDI.

Trigger inputs can be connected directly to switches and buttons, or to digital outputs from sensors or another microcontroller. Alternate functions can be specified using a free cross-platform GUI application, and allow triggers to play sequential or random tracks, pause and resume groups of tracks and even control volume. An Arduino library allows for complex serial control like real-time mixing, starting multiple tracks in sample-sync and smooth cross-fading between tracks.

On-board sample rate conversion allows for smoothly changing playback speed/pitch from 0.5x to 2x. in real-time.

MIDI allows you to use the WAV Trigger as a polyphonic sampling synthesizer to play your own sounds from any MIDI keyboard controller. MIDI Channels and Note numbers are mapped to track numbers, and MIDI Controllers adjust volume as well as attack and release times. MIDI Program Change is supported to switch between up to 16 banks of 128 sounds. The WAV Trigger audio engine even implements, pitch bending, voice stealing (oldest playing voices are used for new MIDI Notes when all 14 voices are being used), note attack (fade-in), note release (fade-out) and latency averages 8 ms.

The WAV Trigger supports both SDSC (up to 2GB) and SDHC (up to 32GB) type microSD cards.

Check the link in the documents below to keep up with the latest Firmware updates!

Note: This product is a collaboration with Robertsonics. A portion of each sales goes back to them for product support and continued development."

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New Erica Synths Eurorack DIY Synth Voice

Published on Jul 25, 2016 Erica Synths

"Erica Synths Eurorack DIY Synth Voice,
It’s a classic architecture synth voice with internally routed VCO-VCF-VCA circuit, but it also features a lot of patch points, so its also great for experiments."

via Erica Synths

"When developing Erica Black Series and Pico Series modules, we accumulated quite a know-how on compact and great sounding designs, and we decided to share some of those with DIY community. And therefore Erica Synths proudly presents – DIY Synth Voice module!

It consists of all essential blocks for versatile monosynth, and is 100% patchable for even more controll options. In order to make the module more compact and reliable in tuning, it has digital/analogue design. VCO and envelope generators/LFOs are digital, other parts are analogue. Digital parts are designed arround pre-programmed MCU board, which comes with a kit presoldered on a small contoller board. Chain up several Erica Synths DIY Synth Voice modules and you have a versatile polysynth!

Features:

VCO with 16 waves and manual wave morphing
-1 oct suboscillator
White noise generator
External audio input
Audio Mixer
LP/BP VCF inspired by Black Polivoks VCF
Lin/log ASR envelope generator with looping function
Lin ASR EG/LFO with looping function
9 LFO waves with wave morphing
Tap tempo and LFO sync
LFO frequency multiplication (x2, x4) and division (/2, /4) in sync mode
VCA with bias control
Auto callibration for better 1V/oct tuning







Prices:
PCBs + ICs (MCU board, 2xK140UD12 opamps, PCB connectors) = 60EUR
PCBs + ICs (MCU board, 2xK140UD12 opamps, PCB connectors) + panel = 90EUR
Full kit = 280EUR"

PCLONE2 - Boss PC-2 Clone as a DIY Kit

Published on Jul 25, 2016 Jason Hotchkiss

"PCLONE2 is my clone of the Boss PC-2 percussion synth. Based on the original schematics but with a tweak to substitute the ultra rare BA662 VCA, PCLONE2 is designed for modding and CV control.

I am selling it as a full kit with included enclosure on my Tindie store https://www.tindie.com/products/hotch..."

Update: Tindie link should be working now, and the additional details for the archives added below.

"A clone of the Boss PC-2 / Amdek PCK-100 for bleeps and bloops galore!

PCLONE2 is a recreation of the (now rare) PC-2 percussion synthesizer which was made by Boss during the 1980s (and also released in DIY kit form under the Amdek brand name as the PCK-100)

The PCLONE2 kit is based on the original schematic (with a couple of changes due to the scarcity of some now obsolete components).

The kit includes all the parts neccessary for the build; printed circuit board, electronic components, wire for internal connections, potentiometers, knobs, switches, sockets, fitting screws etc. It includes a custom designed, laser-cut, case (made from 3mm acrylic sheet with 5mm acrylic side cheeks) and a laser etched acrylic laminate fascia.

Assembly by soldering is required! I would describe this as an intermediate complexity kit for experienced solderers, if you are a novice I would recommend getting some experience on simpler kits before you build this one.

This is a completely analog synthesizer with a single VCO. There is a pitch sweep function, a decay envelope and an LFO with rate, depth and wave shape (triangle/square) control. Unusually for a percussion synth there is no noise source, but you'll soon realise this isn't your typical percussion synth!

Sounds are triggered by an input pulse (5V-9V works fine) or by tapping on a piezo sensor which is mounted behind a pad on the front panel.

CLICK FOR MORE »

KORG KPR-77 Retrofit MIDI Interface (work in progress)

Published on Jul 24, 2016 Harry Axten

"This is a project I'm currently working on. It adds MIDI to the KORG KPR-77 analogue drum machine from 1983. It installs internally; requiring no case mods to fit it, as it fits in the battery compartment and re-uses the DINSYNC connector for the MIDI input.

There are still things to be done, such as redesign the printed circuit board and add the final feature set to the firmware, but I aim to have a kit for sale this year."

A DIY Drum Machine by kbob

I made this drum machine. Published on Jun 26, 2016

"This drum machine was a three day project in May, 2016. Read all about it here.
https://kbob.github.io/2016/06/27/i-m...

See all the source code here.
https://github.com/kbob/drum-machine"

In short:

"It uses code from two of Mutable Instruments’ modules, two Teensy dev boards, and the JIGMOD prototyping system."

Full details here per above.

Spotted on Ask.Audio.

The Joy Of Soldering DIY Tutorials by AI Synthesis

Published on Jul 7, 2016 AI Synthesis

http://aisynthesis.com

Playlist:
AI001 DIY Modular Synthesizer Full Build Guide Video
AI002 Mixer DIY modular synth full build video

Module details follow:

CLICK FOR MORE »

Dirty Freaky Nasty Synth

via Grant Plucka Langdon, aka PLUCKA,S SHED

"here's a sneak pic of a new mysterious eurorack rig by a australian mob of which i have had the pleasure of being a first to delve into its textures , i will post some vids on my youtube channel in the next week stay tuned"

New Barton Musical Circuits BMC46 Digital Noise Module

Published on Jun 28, 2016 boogdish

"This is a demo for a DIY synth project."

via Barton Musical Circuits

"This module is a PIC based noise source. It's capable of a wide variety of sounds while using only a couple of simple controls."

BMC45. Programmable Router demo 1

Published on Jun 28, 2016

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The 8raw8 Analog Drum Machine Expander Based on the Roland TR-808

Details via 8raw8:

"The 8raw8 is an Analog Drum Machine Expander, clone of the Legendary Roland TR808. It is designed to be an affordable reproduction of the original 808, without any compromise on the Sound. Each unit is unique, Handbuilt with passion in our little factory in southern France.

•11 Analog drum voices + Accent
•Separate Output for each voice
•Master Output
•Through Hole electronic components
•Ultra Fast MIDI processing
•BassDrum Tune Mod
•HandClap VCA Mod
•Rock solid Aluminium Chassis
•Quality Alpha™ potentiometers
•Moog Style rotary knobs
•Dimensions: 435x290x90mm (WxDxH)
•Weight: 3kg

What we wanted to achieve with the 8raw8, is a 1:1 reproduction of the old fashionned TR808 electronic circuitry. A simple, useful device focused on the authentic sound.

Every Active component on the signal path is the exact same reference as those used in the original 808. This includes: OPamps, transistors, diodes, signal ICs. At the exception of the HandClap VCA (orig:BA662), replaced by it's little brother (BA6110) sounding perfect with little tweaks.

When we recieve parts, we make sure they are true originals by testing them. It took ages to find the real deal.

We experienced a lot of Mods when prototyping, some were cool and ohters were just too crazy… In order to keep the 8raw8 authentic, we decided to include the most useful mods only."



•BassDrum Tune Mod: allows you to modify the BD pitch.
Adjust the BassDrum oscillator frequency in the key of your song, or create basslines using long decay settings (rather than DAW detuning).
Recall standard pitch by turning off the "Mod on/off" switch.



•HandClap VCA Mod: From soft clicky handclap to loud harsh CLAP.
Opening the VCA potentiometer in Maracas mode will create a cool white noise FX (the clap isn't triggered anymore)."

MIDI Interface



Each voice is triggered via MIDI note, including Accent.
The standard 1 octave midi mapping ranges from C3 to B3 (11 analog voices + Accent).

The 8raw8 is not velocity sensitive on purpose. It kills the oldschool drum machine vibe. Only Accent can accentuate the overall volume/tone on the desired steps of your drum pattern, just like the original 808.

MIDI Processing is very fast, allowing you to create those 808 'trap' drumrolls with ease."