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Update: EPiCK is now running on a modern upright piano action: click here to watch the demo

EPiCK is your keyboard midification kit of choice with physical modeling of a (grand) piano action. Watch the Rhodes Demo here:

Go to the ‘about’ page to learn more!

Update: Interested in a retrofit/midifying kit for your piano/rhodes/hammond organ? Please answer my Poll on the right bar!

Update: EPiCK is now running on an old piano action: click here to watch the demo.

Update: EPiCK is now featuring polyphonic aftertouch: click here to watch a first demo.

This page is a teaser giving you some popular recordings I’ve made with EPiCK. Please enjoy it and read the blog if you’re also interested in technical details about the project.

Links:

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Responses

  1. This is awesome. Check out my MIDI gizmo:

  2. awesome it will be after adding masterpieces will an oeuvre to all humankind (philharmonic)…all masters will be thanks full to you. music needs no mortal language and ur decoding it to amateur and professionals equally. ur work might be a step to man towards a new world “eine neue Utopie” .and when u have time add kinderzsezen and schlummerlied by schumann. thx once again . and best luck EPiCK..THANK SIR…..merci.

  3. Is it ok if I use part of your article in an article I am writing? I will credit you and link back to your article.

  4. please contact me asap. Thanks

  5. I don’t even know how I ended up here, however I assumed this submit was once good. I don’t
    recognize who you might be but definitely you’re going to a well-known blogger when you aren’t already.
    Cheers!

  6. Sebastian, Just wantyed to say hello and see how you are and what’s new with Epick. Any chance of developing it for a Hammond organ? I’m still unable to find another method to work and wish you’d consider it. Let me know, buddy. Bruce
    bnelson218@yahoo.com

  7. Sebastian,

    I’m interested in your work from a slightly different point of view. One big limitation of the piano is that keyboards come in one size, whereas human hands come in many sizes. Custom keyboards are very expensive, so few pianists have had the chance to play on a keyboard properly sized to their hands. I am one of them, and the difference is like night and day. Things that I had practiced without success for years suddenly became no problem at all.

    I’m interested in manufacturing personal digital keyboards that come in graduated sizes. That means either: 1) a series of sensor bars with graduated key-to-key spacings, or 2) one sensor bar with flexible key-to-key spacing.

    I am equipped for woodworking, metal working and electronics (which I first learned near Darmstadt, years ago), and am prepared to invest time and money in this project. If you would like to discuss, please reply to the email address provided below.

    Mit freundlichen Grüßen,

    John Alsina

    • Hallo Sebastian, I would like to communicate with you about a midi keyboard project that I am starting; we could perhaps collaborate. Could you give me your email address (Mine is: dbolton99b@yahoo.es). Perhaps John Alsina (post about) might also be interested; I have no email for him, either, but if he sees this, perhaps he could write me? Danke schön! Ich wünsche Dir einen schönen Tag…
      David Bolton

  8. Hallo Sebastian, I would like to communicate with you about a midi keyboard project that I am starting; we could perhaps collaborate. Could you give me your email address (Mine is: dbolton99b@yahoo.es). Perhaps John Alsina (post about) might also be interested; I have no email for him, either, but if he sees this, perhaps he could write me? Danke schön! Ich wünsche Dir einen schönen Tag…
    David Bolton

    • My email address can be found on the ‘Impressum und ViSdP’

  9. Hello,

    I would very much like to order the Epick system for my 73-note Rhodes Suitcase Piano. Is it available to purchase? Please advise.

    Thank you!

  10. Hey there, still super interested in this and putting my monies forth for a kit or failing that plans. My Rhodes 73 is crying out for EPiCK.

    Have you abandoned the project? Can understand, time is damn precious.

    Benji

    • The project is currently in a “frozen” state. I’m thinking about making it open source, but there is a lot of work to be done…

      • Yeah can totally understand. Big task. Well am sure that there is more than just myself interested. Of you wanted some financial contribution to get it to an open sourced state I’d be happy to contribute. Be it by PayPal or crowdfunding means.

        Benj

  11. Isn’t the physical modelling part a little bit out of scope here as that part should IMHO be included just in the piano modelling synthesis software? MIDI specs also speak just on key velocity, not hammer velocity or hammer force. Also regarding your optical scanner is it really necessary to have the 10k trimpots there, is there really so much variation between the sensors that it can’t be replaced with single fixed resistor value? Anyway, it would be nice if you released some parts of your work as open source like the schematics, PCBs (gerbers is ok, Eagle/KiCAD etc. files better) and the AVR software without the physical modelling. It would be though better to have smaller PCB’s (cost) with a separate PCB for each sensor (could be cut from a single larger one) so that you could then adapt the design for the keyboards of all sizes.

    • Of course the MIDI spec only knows key velocity as it was the only value that was available when the midi protocol was developed. This is just fine for keyboards that have simple weights as hammers, that are tied rigidly to the keys.
      In an actual acoustic instrument the mechanical relations tend to become much more complicated, but in the end it turns out that the hit velocity of the hammer at the string is the crucial value that leads to the volume and timing of a note. There is no simple way to translate a key velocity to a hammer velocity except if you simulate it as a function of time.
      The 10k pots could be omitted but it could reduce the adc acuracy for approx one bit. The proximity of the keys and their reflectivity also are variables to be taken into account. Maybe if one uses 12 bit adcs this could be neglected.
      I already played with the thought of opening my sources, but there is a lot to be done and I’m currently unable to do the job. All the documentation needed is in my head only 😉

      regards,
      Sebastian

      • Sure MIDI limits options to model the hammer action (as a function of traditional MIDI velocity), but anyway by using the optical sensing method to measure the acceleration of the key alone (and not measured between time from opening one switch to closing another) and using that as MIDI velocity alone would make wonders. Another possibility is to send the key action (A/D readings) as MIDI CC data. It’s a lot of data and couldn’t be transferred using serial MIDI, USB would be enough though. So it would make it possible to move the hammer modelling to software on PC or on another embedded solution.


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