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FM multi plaform/multi format plugin, version 0.9.3

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dexed - FM Plugin Synth

Dexed is a multi platform, multi format plugin synth that is closely modeled on the Yamaha DX7. Dexed is also a midi cartridge librarian/manager for the DX7.

Dexed requires a AU/VST host (like Savihost or Reaper) in order to run the plugin.

Examples from One Synth Challenge:

Dexed is free software and is licensed on the GPL v3.


Credits & thanks

Cartridge Manager

Any .syx file in the Cartridges directory will be available from the "CART" window. Find this directory by using the "CART" button and then the "SHOW DIR" button.

You can drag and drop any DX7 program from what is loaded in dexed and/or what you have loaded in the cartridge browser.

Double-clicking on a program will load the currently selected program in the plugin.

Use the context (right-click) menu to send the program/cartridge the DX7 or open your OS file browser from the directory context.

Hint: BlackWinny from kvraudio did a great DX7 compilation named Simply unzip the content of this zipfile to your Cartridges directory.

Engine Type

Dexed can be configured to use some of the original math limitation of a DX synthesizer. This does not only apply to the DAC, it also involves the bit resolution of the sine waves and the way that the amplitude is applied to each operator. Since all of this is experimental, multiple engines will be available to be able to compare them easily.

Dexed comes with 3 engine types :


Using as a DX7 editor

You can use this plugin to edit your real DX7 patchs. Since midi sysex send/receive are quirky for the majority of VST hosts, any sysex messages (editor messages) must be send or received with the external dexed midi interface. This is configurable in the "PARM" panel. By setting a DX7 in / DX7 out midi interface, dexed will listen to specific program/cartridge changes from your DX7 and send controller/program/cartridge you edit.


To send to your DX7

To receive from your DX7