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 Dexed by Digital Suburban is a Virtual Instrument Audio Plugin. It functions as a VST Plugin and an Audio Units Plugin.
Product Dexed
Developer Digital Suburban
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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.

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.


  • 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.

Version 0.9.4:

  • Standalone application version of Dexed.
  • Midi learn support for MIDI CC messages.
  • More accurate detune for operators.
  • More accurate EG envelopes. thanks @jeremybernstein
  • Pitchbend now listen to any channels.
  • Fixed 'clicking' in mono mode.
  • Fixed implementation for MIDI CC 0x78 and 0x7B (All Sound Off / All Notes Off).
  • Windows/macOS installers.

Version 0.9.3:

  • Preliminary live operator level update.
  • Support for incoming parameter change messages.
  • More permissive on cartridge sysex type; the validation is now done on size (4104/4096 bytes).
  • Midi 'All Note Off; 0x7B' support.
  • Breakpoint values are now shown as notes. thanks @tico-tico.
  • Fixed op feedback calibrated for Mark I engine.
  • Fixed for breakpoint levels. thanks @Sentinel77.
  • Fixed LFO delay issue issues upon large values.
  • Fixed for receiving sysex cartridge. thanks @Sentinel77.
  • Fixed operator switch changes are now sent via sysex.

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.

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).
Discussion: Active



14 June 2014 at 6:25ammztk

Dexed V5 is read by Orion on startup but not appearing in.

plugin list :( gonna try older versions. win32/vista.



14 June 2014 at 9:33pmbob bobwood

here's what I tried earlier, but I'll bet you've been there already....


30 June 2014 at 2:17pmballacr75

Why not make mouse vertical movements?

6 July 2014 at 12:21amarkmabat

Free presets by Tim Conrardy:


7 July 2014 at 12:36pmDrewDale
1 August 2014 at 10:15pmrootberg

This is actually a very interesting emulation. I haven't really been impressed by FM8 as _an emulation_ of DX7s etc, but I can respect it as a good synth in it's own right. From this I actually hear a very DX7 sounding synth. I think brass patches sound very cool for example, in a way that can't really be made with other synth types. Well done.

And man is the interface pretty.

Jk, it looks ass, but charming in its own way :)

5 August 2014 at 3:33pmtnkdesbois

Outstanding DX7 emulation ! A masterwork !
Features to add :
- A "panic" button that kills all sound output as some sounds seem to be buggy and loop forever.
- An "init" button to start sounds from scratch, like there was one on the original DX7.

12 September 2014 at 2:30amasb2m10

The "init" button has been added in the 0.7.0 version.

The sound loop bug is fixed; so, no need for "panic" button.


5 August 2014 at 4:35pmrootberg

tnkdesbois: I hear ya. I think the "loop" you might talk about is when you play a patch and change patch while holding a key, then the old patch never receives a note off and keeps going, if I'm not mistaken. But your problem might be different.

And you can actually flip back to the old patch and hit the hang up key to make it stop. But yea, a bit confusing :)

28 September 2014 at 11:15amStudioDave

The latest codebase does not build on Fedora 19 x86_64. Here's the error:

[dlphilp@localhost Linux]$ make
Compiling PluginEditor.cpp
../../Source/PluginEditor.cpp: In constructor 'DexedAudioProcessorEditor::DexedAudioProcessorEditor (DexedAudioProcessor*)':
../../Source/PluginEditor.cpp:216:60: error: 'juce::Button::ButtonState' is not a class or namespace
monoButton->setState (processor->isMonoMode () ? Button::ButtonState::buttonDown : Button::ButtonState::buttonNormal);
../../Source/PluginEditor.cpp:216:94: error: 'juce::Button::ButtonState' is not a class or namespace
monoButton->setState (processor->isMonoMode () ? Button::ButtonState::buttonDown : Button::ButtonState::buttonNormal);
../../Source/PluginEditor.cpp: In member function 'virtual void DexedAudioProcessorEditor::buttonClicked (juce::Button*)':
../../Source/PluginEditor.cpp:365:64: error: 'juce::Button::ButtonState' is not a class or namespace
monoButton->setState (processor->isMonoMode () ? Button::ButtonState::buttonDown : Button::ButtonState::buttonNormal);
../../Source/PluginEditor.cpp:365:98: error: 'juce::Button::ButtonState' is not a class or namespace
monoButton->setState (processor->isMonoMode () ? Button::ButtonState::buttonDown : Button::ButtonState::buttonNormal);
make: *** [build/intermediate/Debug/PluginEditor_94d4fb09.o] Error 1.

AFAICT my Juce code is up-to-date. Any suggestions ?

Btw, is there an email addy or other contact address for the developer ?

Best, .


28 September 2014 at 11:38amStudioDave

Fixed by removing namespace qualifier in PluginEditor.cpp at lines 216 and 365.

28 September 2014 at 2:10pmBlackWinny

It is not here that you should write all that. Talk about the code and the compilations here is totally useless. Te comments written here are sent to the users, and 99,99% of them are single users, not at all involved in the development nor in the tests.

The right place to talk about the aspects of the development, the code, etc. it is on the forum of the Dexed development:


14 October 2014 at 1:12pmStudioDave

Thank, I missed that there was a dev forum for Dexed.

14 October 2014 at 6:50pmopoo

I think for all the novices it should be helpful to make them aware that the original DX7 had only a velocity range up to 100. Todays MIDI standard is 127. This actually srews up the majority of all classic DX7 presets. Its like playing Piano with a slegde hammer. So please, before trying to explore those old DX7 presets make sure you adjust your masterkeyboard or software so your velocity will not exceed 100.

14 October 2014 at 6:59pmBlackWinny

Hello opoo.

Come and join us on the dev forum of Dexed! You're welcome.


22 October 2014 at 10:34pmclou

great stuff. thanks, man. could you add the feature "key mode" please? I'm not sure if this is only in the dx-7 II. you can switch there from polyphonic to monophonic and especially unison poly with the unison detune from 0-7. sounds great.

22 October 2014 at 11:37pmBlackWinny

See the new GUI:


See at the bottom left of the picture, just above the blue button called "Store".

So... once more, as I answered just above to opoo, I invite you to join us at the dev forum of Dexed. It is the right place to discuss the features, not here on the place made in the current page for general comments on a product.

In the dev forums everybody is welcome to suggest new features, comment those which are already existing, report bugs, try beta versions, etc.

The dev forum of Dexed is here:


23 October 2014 at 6:02amclou

Sorry, I answered at the other forum now.

26 October 2014 at 8:23pmrootberg

Just wanted to say that the new GUI is amazing!!!! Thank you!!.

I love Dexed!!!.

1 November 2014 at 6:33amlayzer

brilliant! this thing sounds just like the real deal, now... if somone could just make a free D-50 emulation as good as this without getting sued!! lol.

1 November 2014 at 9:36amtnkdesbois

That's the difference between emulating a synth based on unpattentable, uncopyrightable mathematical formulas and emulating a synth based on proprietary, copyrighted waveforms.

However you made a point here : Only Korg turned it's old flagships into VSTs (see the legacy series). Yamaha could have done it with their brilliant DX but... Digital Suburban did (and they had 15 years or so between the invention of the VST norm and the release of Dexed to do so !), and having set it as an free open source project is even greater.

It's a shame that while Roland used to own cakewalk software that they didn't do - atleast for their in-house daw Sonar - a D50 VST emulation.

Anyway, I never tought I'm gonna get a plugin - and especially a free / open source one ! - coming so close (read = being the exact equivalent) to the almighty FM emperor the DX7 was !

Congrats, Pascal ! (Digital Suburban).

2 November 2014 at 10:01pmopoo

So I was working with dexed v8 a couple of hours and here is what I came up with:

much better, but still....
the six operator windows are still to cluttered. Increase the space between them and make more contrast to the background. Have background black for example.
Separate OP1-3 and OP4-6 with the lower parameters in the middle.That makes it more friendly.

when i work with FM I want to see all 16 algorythms to choose wichever I find appropriate. Dialing is distracting.
The way its on the DX7II is exactly how I like it. Yes it takes some space. But a great synth has a right for his space. Don't worry.

For me it was also always important to mute some operators, while working on the others. Best way for this would be to click and toggle on the operator in the algorythm grafic, which should change its color for on or off.
I also need to point out, that the DX7s had only a velcity range to 100. All this old original sounds have been designed under this.
Today all keyboards run up to the 127 real easy, which destroys the sounds many times. i used to use "velocitycurve" from Trombettworks to tame my keyboards. I suspect it would be a good idea to implement a "velocity tamer" in the app.
Another one: What happened to the Aftertouch ? No Aftertouch?...
Now sadly I myself never learned how to program, so I have no idea how much work my suggestion require. But I dare to mention all this because I have been working with the DX7s since it came out, you know when.


5 November 2014 at 11:20amtnkdesbois

A small Dexed video demo, made using v0.8 (the one with the new gui). Demonstrates a few patches (classic DX patches and newer pads) : http://www.youtube.com/watch?v=wSs1-020nNY

5 November 2014 at 2:31pmBlackWinny

Splendid demo!!! Superb.

20 November 2014 at 7:23pmmisharit

Dexed 0.8 under Reaper x64 on W10 (!) - flawless. And reads the zipped SYX batch like a charm (just a splendid idea - to parse ZIP contents and place them as separate banks, each corresponding to SYX file) - great job!!.

30 December 2014 at 1:31amBolanath

OOh! Nice new GUI! Thank you.

7 February 2015 at 1:04pmspankysimi

I love the synth. I have a major problem though. I am not the best with computers. i managed to install it via juce and use it in ableton (on Mac). after doing a clean OS X install on my macbook i had to reinstall Juce and dexed. now i just can't remember what i did and can't seem to make it work. is there somewhere a manual as to how to do this? I love the synth and miss it.

19 March 2015 at 6:01pmrobohymn

Fantastic plugin. Huge thanks to the developer, especially for version 0.8.0, amazing stuff. Hope he can find a way to commercialize it some day, I'd gladly pay average synth VST prices for this. Can't speak to how close it actually is to a real DX7, but it doesn't matter -- on its own it's a great, great synth.

29 April 2015 at 4:19amnovaflash

Nice VST / Editor .

i use it since a few days to edit my TX-802, all seems works very well.

i only found two small problem when saving sysex :

- the num pad keys + and - in/decrease the prog. change into host (into the the save as box)

- the output level seems low vs other VST.

great job, thanks :)

dexed 0.80
Windows 7 pro 32-bits
Minihost (toby bear)

15 July 2015 at 10:26pmecset

Hi! I just need an Operation Manual for this amazing synth? Can you help me please?

16 July 2015 at 12:33pmopoo

Dexed is an emulation of the Yamaha DX7 synth, so the best way to learn is to get the DX7 tutorials (youtube) and books. Its all about Frequency modulation.

Dave Benson's DX7 Page use to be a big dedicated webpage with lots of things about DX7. Lots of books, lots of links.

9 September 2015 at 11:30amTonda

Hey Guys, sorry to bother but I just can't seem to install Dexed on my Mac (10.9.5). I can't find a way to open the files (just packages), I have installed Reaper. Maybe someone could give me a walkthrough ? Propably just a really basic problem — it seems that i really am the bottom of the barrel in understanding computers. Would be greatly appreciated if someone could help, i could give you my email so I don't annoy anyone here. Thanks in advance, T.

25 March 2016 at 8:29pmTeamjake

Did you ever get to the bottom of this? I am in the same situation. Dexed looks fantastic but I can't work out how to get it running on my Mac (OS X 10.9.5). Thanks.

27 March 2016 at 9:06amTeamjake

Ok figured it out now.


30 October 2015 at 9:17pmIzak Synthiemental

Can someone point me to the original DX7 factory sounds as presets for Dexed?

19 January 2016 at 3:00pmBlackWinny

They are in my Dexed Cart. You will find it here at the chapter Cartridge Manager. My Dexed_Cart contains all the original Yamaha Sysex (and many others), all carefully sorted by folders to find them very easily. Follow the instructions written by the developper in the chapter Cartridge Manager to install it.

19 January 2016 at 10:06amherr_dreier

Dexed 0.9.1: AU validation fail in LogicPro 9.1.8 (MacOS 10.6.8). Can anyone confirm this?

21 January 2016 at 9:28amfeilertsen


This plug-in is fantastic! Excellent sounding alternative to my dx7ii-fd when out of the studio, and for auditioning sounds.

I have a small request for the cart manager. Is it possible to display the name and location of the currently loaded SysEx file? I sometimes need to find out where I found a specific patch after I have closed and reopened the project, but the file-tree resets to the default location. If the "currently loaded cart" section displayed name and location it would be much easier to find the sound.


21 January 2016 at 11:07amBlackWinny

Hi, .

Very good request! I invite you to rewrite it here to be sure that it will be read by all the other users to support your demand:



10 March 2016 at 10:22amclarkey

Hi, .

I've had my DX7 since 1985 and have lost all my cartridges over the last 30 years! I really want to get this plug in working! Can anyone help? I'm running Logic Pro 9 on OS 10.6.8. I've put the VST and component in their respective folders in the library but when I run the AU manager in Logic Dexed always fails. What am I doing wrong?



10 March 2016 at 10:53amherr_dreier

The last working version with LP 9.1.8. and MacOS 10.6.8 is Dexed 0.9.0.


10 March 2016 at 12:18pmclarkey

Thanks Dreier, any idea how I can hold of it - the download links always seem to direct me to 0.9.1.



10 March 2016 at 12:59pmherr_dreier



10 March 2016 at 6:46pmclarkey

Thanks Dreier, the AU manger likes that one! Although now I can't find any reference to it in Logic itself! Any idea how I get to run it?

7 June 2016 at 12:23amMark Yurkovic


I have Digital Performer 8. Dexed works fine in the program but on Mac there is no right click function. I couldn't find any video's showing me how to "send" a patch to my Volca FM....Can anyone HELP!!!.



22 September 2016 at 7:40amstardustmedia

Thanks for the update... But the download links (both folders on top) of your page are broken.

22 September 2016 at 12:55pmbojanboyss

Until its fixed you can access download here: https://github.com/asb2m10/dexed/releases

Seems that in link should be just 0.9.2 (https://github.com/asb2m10/dexed/releases/download/0.9.2/dexed-0.9.2-win.zip) instead of v0.9.2 which is now and not working (https://github.com/asb2m10/dexed/releases/download/v0.9.2/dexed-0.9.2-win.zip). Same for Mac.

22 September 2016 at 5:25pmstardustmedia

thanks mate.

23 September 2016 at 12:29amkrismiller

I apologize if this request has already been met, but I've had one hell of a time trying to find proper conversions of the famous "Lately Bass" & "Solid Bass" patches for Dexed. FM8 seems to convert them better, WAY BETTER. But I was under the impression Dexed performs maths more in line with what the original Yamaha units did. I've probably downloaded over a dozen factory SYX banks directly dumped off of DX100 & TX81Zs. I've converted all of them with DXconverter - which is a python script. Ive also converted them directly in FM8 - they sound tighter & more crisp for lack of a better term. When loaded in Dexed they sound flabby & Solid Bass sounds completely different... If someone can please point me to a 1:1 accurate Dexed compatible Lately Bass & Solid Bass patches I would be VERY grateful!!!.

23 September 2016 at 6:29amfeilertsen

If I'm not mistaken, the Solid Bass and Lately Bass are patches for the TX81z/Dx11. This synth uses 4 operators with multiple waveforms available for each operator. The dx7 however, which dexed is based on, uses 6 operators, all strictly sine waves.

FM8 has multiple waveforms so it is able to convert the patches. Dexed can not.

But there are a ton of bass patches for the dx7 out there which can be imported into Dexed, so you may be able to find an alternative..

- Fred.

19 January 2017 at 10:34amfrognerboy

Any possibility of downloading earlier version of Dexed, say 0.9.1 or even 0.9.0? I ask because I'm unable to open Dexed track with Ableton Live project made with earlier Dexed version.

Any help would be much appreciated.



19 January 2017 at 11:59ambenedettodue

https://github.com/asb2m10/dexed/releases/ (0.9.1)

www.benis.it/varie/dexed-0.9.0-win.zip 0.9.0 : is on my web site www.benis.it :-)



28 January 2017 at 7:37pmfrognerboy

Found the patch I was looking for: "Plane 1". (I had to go back to the 24-bit engine resolution to make it sound right.)

However, I've still got the problem that all my Ableton projects which used a pre AU version of Dexed won't load the Dexed VST. I get the message "VST Dexed: The VST plugin could not be found". I've got the latest version of Dexed installed which works fine, both VST and AU.

Any tips would be very welcome indeed! I'd hate to think I've lost all my work :- (.


28 January 2017 at 8:19pmBlackWinny

Hello, .

When it is to talk about issues of a plugin, the best is not at all among the discussions in the product page like the present one, but to relate the issue in the forums. Many instruments even have dedicated threads and sometimes even dedicated forums. And for Dexed there is a dedicated thread (running since 2014, the last post published two days ago) where you are ABSOLUTELY sure to meet almost all the users involved in the tests, among them of course the developer of the plugin. For Dexed it is here.

Free FM Synthesizer Dexed (VST Windows and Mac)

Discussions in the product pages of the KVR database are to talk about very minor problems (where to find it when it is hard to find, etc.) or to give quick feedbacks on the personal use (deeper feedbacks with gift of a note from 1 to 10 are to write in the tab "Review" at the top of the product pages, like this one for Dexed). Discussions about technical issues, suggestions of improvements, etc. should always be written in the forums to be sure to be read by all the very engaged users of the product. So, to be sure to have real answers (advanced or deep answers, and even discussions with other users having met the same problem for example and having solved it), use the link to the thread to write your issue.

28 January 2017 at 8:50pmfrognerboy

Thanks BlackWinny. Duly noted. I've just posted where you recommended... H.


7 August 2017 at 10:54pmzmix

It's a really well done emulation of the DX-7 in every respect, amazing really, even the quantization noise is exactly like the original.

I'm getting a lot of stuck noted when using the AU in Logic Pro X, and am unable to clear them, even loading a new patch keeps the old patch playing. The only workaround I've found is to unload and reload the plugin.

I have really only had these issues when in the "CART" mode, auditioning sysex patches and banks.


13 August 2017 at 8:33pmeivindengedal

I knew Dexed was very close to my original DX7 mark1, but wondered how it would work in a mix. If anyone shares my wondering, take a listen to this: https://youtu.be/wbMzttE-jys

19 August 2017 at 1:20pmzmix

When I compared some patches with my Yamaha TX-7 module I noticed that the Amplitude Modulation (Labeled "AMD") isn't working.

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