FM multi plaform/multi format plugin
C++ C Objective-C++ Objective-C Java Makefile

Dexed - FM Plugin Synth

Dexed is a multi platform, multi format plugin synth that is closely modeled on the Yamaha DX7. Under the hood it uses music-synthesizer-for-android for the synth engine and JUCE as a plugin wrapper.

The goal of this project is to be a tool/companion for the original DX7. Sound engine with 'float' value parameters, different waveform à la TX81z would be great but anything that goes beyond the DX7 should and will be a fork of this project. This is to keep the compatibility with the original machine.

Dexed is licensed on the GPL v3. The msfa component (acronym for music synthesizer for android, see msfa in the source folder) stays on the Apache 2.0 license to able to collaborate between projects.

Dexed User Website


Version 0.9.3

  • Fix LFO delay issue issues upon large values
  • Fix for receiving sysex cartridge. thanks @Sentinel77
  • Fix for breakpoint levels. thanks @Sentinel77

Version 0.9.2

  • Mark I engine is now the default engine
  • Added operator mute switch
  • Added Tune (MASTER TUNE ADJ) knob
  • Correct feedback implementation for Algo 4 and 6
  • Single click program select
  • Fix sysex issue with wrong machine ID
  • Fix for parameter hosts values. thanks @Sentinel77

Version 0.9.1

  • Mark I engine now uses 10-bit sine/exp tables. Still a work in progress but we are getting there
  • More accurate FM feedback on the Mark I and OPL Series engine
  • Wheel, Foot, Breath, Aftertouch modulation support
  • Fixed the display of some more 'complex' algorithms
  • Drop of .syx files in the cartridge manager
  • Dexed data directory can now optionally reside in the same location where the binary is installed
  • 'Send current program to DX7' in Cartridge Manager works as designed
  • Support for sysex streams (multiple sysex messages in one .syx file)
  • falkTX upstream fixes for Linux

Version 0.9.0

  • Apple AU support
  • Cartridge Manager
  • Store action also can update the currently loaded cartridge
  • Basic theming
  • Fixed the UI corruption when more than one Dexed instance was loaded
  • Fixed wrong display value issues (coarse and fine)

Version 0.8.0

  • New UI by AZur Studio
  • You can now copy/paste the operator/envelopes values by using the right-click mouse button on the operator
  • Fixed some of mono mode ticks on lower frequencies
  • SynprezFM preset are now in a submenu

Credits & thanks

  • DX Synth engine : Raph Levien and the msfa team
  • Graphical design : AZur Studio
  • LP Filter : Filatov Vadim (2DaT); taken from the excellent Obxd project
  • PPPlay : Great OPL3 implementation, with documented code :D
  • DX7 program compilation : Jean-Marc Desprez (author of SynprezFM)
  • DX7 programs : Dave Benson, Frank Carvalho, Tim Conrardy, Jack Deckard, Chris Dodunski, Tim Garrett, Hitaye, Stephan Ibsen, Christian Jezreel, Narfman, Godric Wilkie
  • falkTX distrho
  • Sentinel77 for parameter host value fix

TODO - Dexed

  • Yamaha 4 operators (DX21/DX27/DX100) sysex import
  • UI threaded messaging to avoid DAW automation 'clicks'
  • Zomby UI changes: this occurs in Live
  • Various code cleanup
  • More smoothness in mono mode

TODO - msfa

  • Portamento implementation
  • Better Amplitude Modulation
  • Test maximum delay lfo values that seems to be reset