I'm thinking of buying a Cantini MIDI violin. The person from electricviolinshop.com says I would need to hook it up to a MIDI-controller/synth like the Roland GR-55 and then into my computer to get useable MIDI data.

Has anyone done anything like this? I want to know how the data would be detected in Pure Data. Would each string have its own channel # when using [notein]?

Also, [notein]'s velocity value is the amplitude, right? So it would change depending on the strength of the string's vibration, right?

Edited the title to make it potentially more universal... maybe I'll get an answer this way. ^^;

@s.elliot.perez
It seems to have a 13 pin midi connector.... but maybe it's not midi data.
There is a miniscule amount of information here...... http://www.cantinielectricviolins.com/2/technical_support_2950879.html
There is an interface here...... https://www.roland.com/us/products/gi-20/ and at least that unit could be necessary to get midi data into Pd.

I think you will need to read this......
https://www.researchgate.net/publication/255569994_ADAPTING_POLYPHONIC_PICKUP_TECHNOLOGY_FOR_SPATIAL_MUSIC_PERFORMANCE
.... and it will probably tell you what you need to know.

If you just want a loud violin you could try an Accusound Omni microphone. That is what I use with the Balanescu Quartet, and we have done pop and even heavy metal gigs.

Or you could try deconvolution with a piezo pickup...... https://forum.pdpatchrepo.info/topic/7778/deconvolution-for-rt-spectral-stamping-of-violin

But if you want some other synthesis then that violin could be a good solution.
David.
(P.....S...... It looks like you can also buy the pickup separately.......)