Increment/decrement Transpose value via cc?

Midihub
1

Hello community,

I am relatively new to Midihub, seeing almost anything can be done, so I am wondering about this
(maybe it is supereasy and I just don’t get it):

I am using Midi A IN to route midi notes from my master keyboard to some attached rack synths via Midi Outs A,B,C,D.
Now my Midi keyboard has Octave up/down control, which works great, but I wish I could also use semitones for the attached gear too.

So I found there is a Transpose pipe in MH that can shift notes by semitones, but that seems to have a fixed value at a time.
Is there any way to control that value by increments or decrements of 1?
Like if I sent a CC message to the midihub, the Semitone value would go up or if I sent another CC or value it goes down?

Edit:
I found this video, around 37 seconds into it the Semitone value is changed, so it seems possible:

Any help very much appreciated :slight_smile:

2

Not quite like that, @ozark2001:
with Midihub and a controller connected, click on the Map button on the semitones line:

Screen Shot 2023-10-31 at 16.34.01

Now the next control you move will map that CC to the semitones.
(the centre position – 64 – maps to 0 semitones)

3

Okay so I need to do some stuff on controller side to keep sending over the right value, instead of cc e.g. 0 to decrease or 127 to increase… I think I can figure that out! Thanks!

4

OK.
If you want to have Increment/Decrement within MH, you’ll currently need a physical loopback.

5

How would that work (just in case i cant seem to get the controller to do those exact value sends properly)?

6

First, is the idea of a physical loopback either using a DIN cable…

_LoopbackMidihub
_LoopbackMidihub2090×2039 149 KB

…or some USB → USB connection

This is needed because you’re wanting to modify your cc within MH then send it back in as a mapping.

The patch itself roughly will be a slightly simpler version of this one
(which Increments/Decrements Program Changes instead of Transpose semitones.)

the key ideas are:

  1. your CC 0/127 will Transform to some CC 0 → 63 127 → 65
    (a Rescale [0;127] → [63;65] will do in your case)

  2. a CC → Note Transform will be triggered by the 63/65. Its initial Note # will be 64.

  3. the 63/65 will also map to a ‘calculation’ Transpose which is used to add ±1 to the Note#

  4. this ‘shifted’ Note# is then Transformed to a mapping for the Transpose in the pipeline you want to use…
    …and the Transform Note # in part 2 (this stores the value ready for the next ±1)

So not exactly “supereasy”!
If you decide to try it, the diagrams linked in the patch description hopefully spell out what the flow is so you can adapt it.

Good luck!


\

0 to decrease or 127 to increase

have you got a controller that can send a sequence of 0’s and then 127s?

7

Thanks for the guidance, it does look indeed a bit more complicated than I expected :slight_smile:

i did get some easy patch-changing done on an axe fm3 via midi cc, that allowed for incr/decr patch or scene via cc sends.

Judging from glimpsing over the myriad of stuff in the MH editor I thought there is some “building block” or option that lets one more easily/flexibly manipulate a parameter via ccs.

Would there be any idea for a block/option in the editor to avoid physcial loops and complex pipelines to potentially solve this and similar tasks (like that program change) more effectively in the future?

8

Yep, trickier cos the task involves both “self-mapping” and storing values

any idea for a block/option in the editor to avoid physcial loops … in the future?

Giedrius recently said something along these line is in progress, so let’s see…


if I get a few mins tomorrow I’ll look and see how simple I can make it.
You thinking of foot buttons with the Axe?

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