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.

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3. Dexed is free software and is licensed on the GPL v3. Multi platform (OS X, Windows or Linux) and multi format (VST, AU, LV2) The sound engine music-synthesizer-for-android is closely modeled on the original DX7 characteristics.

Monique virtual synthesizer is available starting with 2020 for free and comes in VST, VST3, and AU plugin formats for PC and Mac. Exakt Lite is a FREE intuitive and user-friendly FM SOFTWARE synthesizer plugin. Capable of creating a wide range of sounds, from harsh digital and cold sounds known from the FM era to warm and organic. Oxe FM Synth is a freeware software synthesizer for Windows, in two versions: VST Plug-in, and as standalone application. Features: Multitimbral (16 MIDI channels); 8 operators (6 oscillators, 1 noise generator/limiter, 1 filter), all with envelope; 1 LFO per channel; Modulation matrix with self-modulation; Global reverb and delay.

Minimal documentation is available on Dexed Wiki.

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

Features

• Multi platform (OS X, Windows or Linux) and multi format (VST, AU, LV2)
• The sound engine music-synthesizer-for-android is closely modeled on the original DX7 characteristics
• 144 DAW automatable DX7 parameters available from one single panel
• Fully supports DX7 input and output Sysex messages; including controller change. This means that you can use this with a native DX7/TX7 as a patch editor and sysex manager
• Each operator have a realtime VU meter to know which one is active
• Can load/save any DX7/TX7 sysex programs. It is also possible to save a single program into a different sysex file.

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 Dexed_cart_1.0.zip. 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 :

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Free Fm Synth Vst Plug-ins

• Modern : this is the original 24-bit music-synthesizer-for-android implementation.
• Mark I : Based on the OPL Series but at a higher resolution (LUT are 10-bits). The target of this engine is to be closest to the real DX7.
• OPL Series : this is an experimental implementation of the reversed engineered OPL family chips. 8-bit. Keep in mind that the envelopes stills needs tuning.