Controllers and Editors for Synths, Keyboards and Effects

Eurorack version designed for Behringer 2-XM (Works with any MIDI equipped synth with 0-10V CV inputs)          Envelope - ADSR plots There are no Digital to Analogue   Converters -DACs  used in this design. The only additional components on the FVCs are op-amps to boost the 5v output to 10V. The ProMicro supports analogue output using PWM. If this happens at a very high frequency the output is very smooth. The output is filtered with a simple RC filter and there is no digital noise picked up by the synth. The Attack is 0-10s with Decay and Release up to 15s. The envelope is exponential. Here are some plots from various ADSR settings:           Basic Version - No CV Control  FVC-1         Four Voice Controller with Keyboard Logic and Faux Vibrato       All functions are controlled with CC numbers  so you need a controller keyboard     Polyphonic control of 4 MIDI chann...

Simple MIDI USB Clock Converter for Analogue Sequencers Title says it all really. I have several analogue sequencers that I designed and built years ago and I clock them with a Kenton Pro Solo Mk3. This unit can switch the MIDI THRU port to SYNC24 mode to work with Roland Drum Machines. This is a great solution but does tie up my Kenton which uses with my Editor and needs MIDI THRU for 2 way comms. Features USB In 5V Reset Pulse Out 5V Clock Pulse Out Clock Divide control - 7 divisions Whole - Half - 1/4 - 1/8 - 1/16 1/4T - 1/8T - 1/6T Very simple project with few components Arduino and the Pro Micro  I realised it was a simple job to reprogram on of my Pro Micros to convert MIDI Clock and Stop/Start messages. I've used it for a few weeks and its a worker so I thought I build proper unit: Like my SYNC24 breakout box this will be mounted on the back of an existing 19" rack panel. More information about ordering and building  here Analog pulses are output on the clock jack conn...