rtpMIDI on the ESP8266 drum player

April 11, 2018

rtpMIDI or Apple MIDI is now supported on the ESP909 drum machine.

Over at the ESP8266 Audio hacking section.

Audio hacking with the ESP8266


Please consider a donation

April 10, 2018

I have spent countless of hours on writing and generously sharing my code on this page.

I know people think free is good and so do I.

But please consider a small donation through Donorbox.
It will keep me sharing code and having it open source.

Thank you.

A simple 909 drum synth

April 4, 2018

A simple 909 drum sample player has been added to the ESP8266 Audio hacking section.

Audio hacking with the ESP8266


Guess whats up next?

April 3, 2018





Grand opening discount

March 29, 2018

Grand opening discount at http://webshop.dspsynth.eu

Use the coupon code “opening2018” to give you 15% off on the cart value.

(The code only works one time per user and is valid until 31st of March)


DSP Synth Webshop Go Alive!

March 26, 2018

The webshop is now active and you find it here:






Moving to new grounds

March 24, 2018

This blog will move to the DSP Synthesizers server next week.

It will improve integration with the main site and use its own WordPress installation.

At the same time the webshop will be transfered to the Woocommerce platform.

You can already now visit the webshop at http://webshop.dspsynth.eu but cant buy anything until monday 3-26.

Please make a visit and make a review of the shop.

3 new modules will be available on Monday.


V-Edge – The Coolest Touch Synth?

March 13, 2018



The V-Edge is a 2 Octave Phase Distortion Touch Synthesizer.
The name comes from it’s wedge shaped design.

Featuring both MIDI and CV/Gate it wont just look great on your desktop but also performs well with your gear.

Working standalone it hosts dual CZ1 phase distortion oscillators for a great sound.

It will be released on 31st of March and the price is $139


  • 25 key monophonic touch keyboard
  • Dual oscillator with pitch and detune
  • Phase distortion filter with peak and modulation
  • AR Envelope generator
  • MIDI In/Out
  • CV/Gate output
  • Headphone output
  • Aluminum panel with 6 knobs

Order the V-Edge Touch Synthesizer $139

(Shipping will start on the 31st of March after the preorders have been fulfilled)

You can preorder it and the $5 will be refunded on final payment.

Preorder the V-Edge Touch Synthesizer $5

(Orders on the preorder list will be shipped first)

Accepted preorders:

  1. Stephen Davis


SP12/Drumulator now as DIY

March 13, 2018

Panel/PCB/Chip kit available from $69.

Build instructions in the menu to the right.


CZ1 Kit

February 20, 2018



This is the CZ1 PD VCO available as a kit.
The kit is beginner level and easy to build.



The kit is $75 including shipping and contains the PCB, alupanel and all the parts for building the CZ1 phase distortion 3HP module.

Order the full 3HP CZ1 PD-VCO Kit $75 including shipping