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Please allow players to calibrate the sensor response to their preferences

Please allow players to calibrate/set the minimum and maximum Strike, Press, and Lift values coming from the Seaboard sensors to whatever feels right for them. Being able to adjust what counts as a note-on and note-off would also be invaluable.


Here’s an example of how it’s done with an Arturia keyboard: https://www.arturia.com/faq/keylab/how-to-re-calibrate-the-potentiometer-based-controllers-wheels-pedals-aftertouch-breath-pads.


Here’s information on recalibrating the aftertouch sensitivity on the Linnstrument: http://www.rogerlinndesign.com/ls-global-settings.html.


I think the best user calibration interface would ask the user to demonstrate what they do when they’re trying to apply minimum and maximum velocity or pressure. It’s a little like the “Listen” function often used to map MIDI control parameters except, while the mode is enabled, it listens to the player playing lots of notes (or pressure values) to demonstrate what they do when they’re trying to achieve minimum or maximum velocities or pressure. And then, from that data, the software can statistically estimate and intelligently set a useful range of sensor output for each parameter. (The pressure sensitivity on Wacom Tablets used to get setup this way.) And then from there, numeric fields and sliders would be available to fine-tune these parameters.


Note that calibrating the range of responsiveness from a sensor is very different from applying response curves. Realistically, I’d probably be fine using linear response curves in ROLI Dashboard as long as the min and max values made sense for the way I play. I think, in general, once the min and max values are good, it's reasonable to then adjust the response curves in each synth patch instead of doing it in the ROLI Dashboard.


It’s a simple fact that players have different physiologies, vastly different levels of training and experience, and different expectations. To the extent ROLI controllers can adapt to different players, there will be that many more players falling in love with them.



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The above comment from VIdeographics is strongly endorsed by me as a need. However is there a) a technical capability in the product that just needs a process and a software utility to be designed - and assuming there is - then b) is there a simple and repeatable calibration solution that could be used across the user community without an expensive test jig?


This is clearly a challenge for the product engineers!

One problem is that I'm not sure that the standard finger applying a guestimated PRESS force would cut it?  To be meaningful, there would need to be a way of applying a known force vertically downwards onto the keys and acting through a known cross sectional area. This would need to be repeated for at least two forces - a 'lightest' PRESS force and a 'heaviest' PRESS force in order to calibrate the range between. 


I'm not particularly wanting to be laughed at here, but to start the ball rolling maybe we could have say an unsharpened  carpenters pencil (as a standard cross-section) with a couple of standard grocery items acting as known weights balanced one at a time on top of the pencil - say a small tin of evaporated milk and a large tin of baked beans. OK, now I am fully expecting to be laughed at, but it has the merit of being pragmatic and low cost.....

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