LSB and MSB midi messages. How to create?

Question

I have this knob that has an msb of  CC17 and an lsb of CC 20 to control the cutoff. Cutoff values range from 0 to 255. How do I set this up so that I have one control that goes from 0 to 255?

Comments

Not sure that I understand the question, but this should be achievable with a supercontrol. You would need to set the lsb knob to 14 Bit  CC and change the maximum value from 16383 to 255. Is the msb a constant or variable value?

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Maybe I phrased it wrong. The spec says cutoff is 17 MSB, 20 LSB
The approach I did was a super control with 2 subcontrols. One subcontrol sending 17 MSB and the other sending 20 LSB, but is that the correct way?

Now I am curious as to why I need to set the LSB knob to 14bit CC. Aren't the 17 MSB and the 20 MSB already forming the 14bit? And how does one CC know what his partner CC is?

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Sorry, I did misunderstand the question. You are right that the combination of the msb and lsb gives you the 14bits...I was thinkng back to a situation where I had a button that sent the msb and a knob that needed to send a value from 0 to 255. In that case I had to  change the knob to 14bit CC. Your case is different and I don't think I have sufficient knowledge to help. Hopefully someone else can.

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Hmmm... where are we on this question, EZB? Solved, or...?

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This has not been solved. I would like to have your input on it on how I have to solve this.

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Can you give me an example of the MIDI messages you need to produce, please?

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The thing that's bizarre is that we do support 14-bit CC's, but then the companion LSB would be 17+32 and not 20... so I'm wondering exactly what you need and whether we can verify it...

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I forgot which synthesizer it was needed for, but the Voyager has a similar situation. Check out the manual page 78 (in the manual itself).

http://www.moogmusic.com/sites/default/files/voy_user_manual_combo.pdf

For example the cutoff. It has 19lsb and 51 lsb. Is this a bit more clear? If not, please let me know.

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Yep, that's a 14-bit CC in MIDI Designer, since 19 + 32 = 51... so a 14-bit CC will automatically send the 14-bit value split into MSB-LSB. Did that make sense?

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So how do I configure this in MD? Do I take the LSB or the MSB as the CC in a control? I would think the LSB.

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Thanks, just put this up there now: http://mididesigner.com/qa/277/coarse-fine-ccs-14-bit-control-changes?show=2831#a2831

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Awesome. Another thing learnt about MD.

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So what about the original questions with 17 and 20... was that an error?

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You can forget about the 17 and 20. I don't remember where I saw it,but my guess is that I didn't pay attention.

Answer 1

According to the OP, the 17-20 was erroneous (it was no doubt 17 and 49).

That's a 14-bit CC. We support it in MD.

http://mididesigner.com/qa/277/coarse-fine-ccs-14-bit-control-changes?show=2831#a2831

 

Answer 2

According to the OP, the 17-20 was erroneous (it was no doubt 17 and 49).

That's a 14-bit CC. We support it in MD.

http://mididesigner.com/qa/277/coarse-fine-ccs-14-bit-control-changes?show=2831#a2831