[LAU] LinnStrument on Linux

[Paul Davis]

MPE is a relatively new way to use MIDI, and almost no pre-existing MIDI
receiver can use it correctly.

I have looked into what it would take to get Ardour to work well it, and
concluded that I would put if off for a while. I actually Roger in Berlin
last November and greatly enjoyed interacting with the Linnstrument and
talking to him.

On Sun, Jul 17, 2016 at 11:33 AM, Thomas Poulsen <thomas at lha66.dk> wrote:

> Dear list,
>
> I recently bought a LinnStrument from Roger Linn Design:
> http://www.rogerlinndesign.com/linnstrument.html
>
> It is a great isomorphic midi-controller, and as such it is immediately
> recognized on Linux.
>
> The distinguishing feature of the LinnStrument is that it senses 3 degrees
> of freedom on each note: x-direction, y direction and z-direction
> (pressure). The x-direction is mapped to pitch-bend, and y-direction to
> CC74.
> A cool feature is the "slide", where the pitch-bend is used to slide
> between all notes in a row.
>
> To allow individual pitch and CC74 values for each note, it sends each
> note on a separate midi-channel ("MPE"):
> http://www.rogerlinndesign.com/implementing-mpe.html
>
> Bitwig has added support for this, and there is 20 presets in version
> 1.3.11, where this is used (tag: linnstrument). The LinnStrument controller
> is not recognized automatically on Linux in version 1.3.11, but it can be
> configured manually, and then it works fine. Note that both midi-in and
> midi-out has to be configured, if not there is no sound! It should look
> like this: https://ibin.co/2msBJVgpKtf9.png
>
> Now I would like to also use it with the free Linux synths.
>
> Here's what I have been able to make work this far.
>
> Synthv1:
> PME works reasonably well: I can play polyphonic in MPE mode, but it tends
> to miss the "note off"s.
> I can get the slide to work, by setting
>  <param index="36" name="DEF1_PITCHBEND">2</param>
>  <param index="78" name="DEF2_PITCHBEND">2</param>
> is a preset.
>
> Zynaddsubfx:
> I can not get MPE to work.
> Sending only on one channel, and setting PWheelB.Rng to 2400 cents, I cant
> get the sliding to work, but only when playing with one finger.
> If I enable MPE on the LinnStrument there is only an occasional sound,
> when it happens to send on the channel, that Zyn is listening on.
>
> I'll love to hear if other LinnStrument users have been able to do more
> with any of the free synths on Linux.
>
> All the best,
> Thomas
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>
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