Author Topic: MOD DUO - Linux Open Source Expandable Guitar Pedal  (Read 2518 times)

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Offline sec6

Re: MOD DUO - Linux Open Source Expandable Guitar Pedal
« Reply #25 on: August 02, 2017, 11:34:59 AM »
Their wiki page states a dual core 1 ghz processor with 1 gig of ram:

Seems a little underpowered to me.  I expect that when you load up a number of effects, it will start to choke. 
Les Paul DC Standard (GK Kit), Ibanez RG420GK, Boss GP-10, Ableton 9 Intro, Omnisphere 2, Arturia Synclavier, Arturia VDM

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Offline snhirsch

Re: MOD DUO - Linux Open Source Expandable Guitar Pedal
« Reply #27 on: August 09, 2017, 06:11:27 AM »
Has Mod Duo gone belly-up already?  Their website at has been MIA for the past two days.  I can get to the Wiki, but that has no sales information (links to the aforementioned URL).

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Offline lumena

Re: MOD DUO - Linux Open Source Expandable Guitar Pedal
« Reply #29 on: August 09, 2017, 09:11:59 AM »
I have thought about this...

is anybody else looking at Max7 coding for Gen objects?
I am just starting with Max but mostly have been looking at video things. Not lost in anyway in Ableton or midi etc.
There is a Max and MaxforLive  stuff out there so porting to the pedal may not be that hard. I think mostly conceptualizing what would be best to use it for is really the big part of something like this. Things like big reverb and delays are pretty covered with boxes like the H9 and Strymon, so it would be only for more specialized uses that it would become a viable solution. If you have ideas about this let me know.

I noticed in some of the comments on the Cycling74 site... cpu usage for things like reverb might not be ideal. This type of code is not as optimized as in boxes mentioned above...however some unique types of reverbs/feedback matrixes etc might be good candidates.
-- comments from Cycling74
@stew -- I loaded up the gen~ dattorro reverb example on the MOD Duo. I modified this example to be stereo and reached 80% CPU on the Duo with 4x Stereo Dattorro Reverbs in one instance. 

The equivalent patcher on a 2012 MBP sees me at 20% CPU usage in Max. Worth noting the Dattorro is really heavy on CPU and won't be as heavy as glitch, granular type effects on the DUO

@ARABRAB Looks like you missed a few details --- to clarify, that's FOUR custom stereo Dattorro Reverbs in one patch on the MOD Duo running at once (a pretty far fetched user case scenario for the sake of stretching the CPU).
This is the equivalent of 8x the version you can find in the gen~ examples folder inside Max. Personally I've run upwards of 7 separate gen~ patches, with a sequencer & signal generator all within the DUO and not seen more than 30%
Also the price of the MOD Duo is actually €549.00 for Max users ;)

It's worth thinking about how programming FX can be a useful part of your personal sound explorations/projects. I do know from personal experience that even adapting code can be quite time intensive.
As far as totally new directions for sound. I am not sure how much more can be done without going to samplers/synths and then it becomes what control sources are usefully extracted from the played notes... e.g. frequency based envelopes to extract control signals to drive midi.

Would love to hear more ideas about what could be interesting. Lots of these things are available to test in Ableton/MaxforLive so if someone was inclined in that direction I would be interested in helping in the explorations. Elantric if you start working on programming I would love to hear about what things are working for you.

« Last Edit: August 09, 2017, 09:37:50 AM by lumena »

Online admsustainiac

Re: MOD DUO - Linux Open Source Expandable Guitar Pedal
« Reply #30 on: August 09, 2017, 09:18:38 AM »
I have thought about this...

is anybody else looking a Max coding for Gen objects?


Quite possibly the Blokas Team PiSound RPI hat

We have reached our third and the last Stretch Goal - how cool is that!
As promised, we will introduce an easy way for you to play around with LV2 plugins using Pisound board and our mobile app. Like with Pure Data patches we will be posting some open source LV2 plugins on PatchStorage.
There are less than 72 hours left until the end of our campaign
If you know someone who would be interested in getting Pisound for a lower price it’s the best time to let them know.
Progress Updates
We have been really busy working on delivering the stretch goals and finally, we have some tangible progress updates!
Mobile App
Watch on YouTube
For the earliest prototype of the mobile app we focused on the main and most difficult part of the application which also makes up the bulk of the functionality - getting a list of available patches from a service running on Raspberry Pi, launching the patches and getting the output from Pure Data forwarded to the mobile screen. The next steps will involve polishing the user interface, porting the app to iOS and rigorous testing of the software, so it works in live and studio scenarios as reliably as possible.
Pisound & LV2 Plugins - MODEP
Watch on YouTube
Even though we have just reached the LV2 stretch goal, we have already prepared an exciting project for you to try out with Pisound - an LV2 plugins host by MOD Devices ( ported for use with Pisound. We call it MODEP. There are already 144 LV2 plugins available to play around with, and we have customized The Button to enable switching straight to the desired pedalboard. See for more information on the project.
Thanks again for your support and stay tuned for our future updates!
Any questions or feedback? Chat with us at
Cheers, Blokas Team
« Last Edit: August 09, 2017, 09:21:46 AM by admsustainiac »

Offline lumena

Re: MOD DUO - Linux Open Source Expandable Guitar Pedal
« Reply #31 on: August 09, 2017, 09:52:19 AM »
I will give that a look.
I am not however going to start with Processing or PI. Solid environments but I don't know what I may want to do in the future and a solid platform is a well funded one.
The whole reinventing the wheel thing with each new environment is not for me, as an musician/artist I want to make finished sound/visual pieces.
My experience has been that Ableton and Max are a much more friendly environment and you get to music in a much quicker way.
Using maxforlive you can also end up with a modular setup were you can string various devices up without redoing old ideas just to get to the new one. Since Ableton has bought Cycling74 you can see the writing on the wall. The language to be using is what will be supported in the future, besides there is a great codebase already out there which only requires slight modifications to become portable to web,ipad etc. and there are even connections to AR/VR which may not be so meaningless in the near future.

If you are doing something in Processing I would love to hear it - I have seen some quite compelling things done with it.

Offline snhirsch

Re: MOD DUO - Linux Open Source Expandable Guitar Pedal
« Reply #32 on: August 09, 2017, 10:02:45 AM »
URL works here

Thanks!  That works.  Odd that neither the old Kickstarter page nor the Wiki have a link to the "" site.

Update: I sent Gianfranco a note and he's updated the link on the Wiki.  The Kickstarter page link should have redirected (but was not).  He's looking into it.
« Last Edit: August 09, 2017, 03:09:15 PM by snhirsch »