Need help with complex MIDI CC Expression

[Puppeteer]

Hi guys,

I’ve very new at Ctrlr, but I’m trying to create a simple panel to control some deep aspects of a Kurzweil PC3, that cannot be assigned to MIDI CC’s.

The PC3 has a deep control method (called KPN’s) that can be used by editors utilizing 7 MIDI CC’s. (CC110, 111, 112, 113, 114, 118, 119) It’s a bit like a super NRPN and it’s required because of the sheer number of parameters that can be adjusted and the wide range of the parameters.

I can set up a Multi Message to control the parameter fine and that all works, however I’m not sure how to manipulate parts of the message with other console objects.

I’ve attached a panel, and at this stage I’m just interested in the 2 blue controls in the grey box. For background, each PC3 MIDI channel can host a PC3 program (patch). Each patch can be up to 32 layers deep and each layer has 3 envelopes. Using the KPN protocol any parameter on any layer of any channel can be controlled within the PC3’s program buffers (so the editing is non-destructive). At this stage, I just want to be able to control envelope parameters on different layers, where I can choose the layer. Later I want to assign the knob to different parameters (so using a menu or list choose that knob 1 might control LFO shape, for example).

What I want to do is that when I change the layer parameter, I want the value to be substituted into the complex message that is sent when the “AmpEnv Attack 1 Time” knob is turned (Layer 1 is equivalent to MIDI CC: 111 Value: 0) – which is the value displayed in the console.

Any help would be greatly appreciated.

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The Puppeteer
http://godlike.com.au

[Puppeteer]

Anyone???

Or even if someone can point me to an example of how to inject a global into a Multi CC message, rather than SYSEX.

The Puppeteer
http://godlike.com.au

[zeoka]

Hi
Dunno if I can help you because not fully understood what you want but :

replaced console(k0) by console (“”..panel:getGlobalVariable(0) )
and I get in the console :
Knob 1 Layer: 5
21

Did you seen that there is a panelCallback that is called when a glb var is changed ,
may be that helps you and there is an overview (a property)of all variables in the panel props
may be you can display this in good form on a uiLabel

[Puppeteer]

Hi

Thanks for having a look.

If you assign the MIDI Out to the MIDI Monitor and look at the messages sent from moving the AmpEnve Attack 1 Time knob you will see the following

[12:48:35:000593]: RAW:[b0 6e 02]
[12:48:35:000593]: RAW:[b0 6f 00]
[12:48:35:000593]: RAW:[b0 70 09]
[12:48:35:000593]: RAW:[b0 71 00]
[12:48:35:000593]: RAW:[b0 72 02]
[12:48:35:000593]: RAW:[b0 76 40]
[12:48:35:000593]: RAW:[b0 77 33]

What I want to do is the second message should be b0 6f 04 when the Layer is set to 5. I can’t find a way to get this to change.

The Puppeteer
http://godlike.com.au

[dasfaker]

You should use LUA for this. Remove the multi message stuff and create a script for “Called when the modulator value changes”. Add the messages you need to send, there you can insert any variable you want.

m = CtrlrMidiMessage({0xb0, 0x6e, 0x02})
panel:sendMidiMessageNow(m)
m = CtrlrMidiMessage({0xb0, 0x6f, panel:getModulatorByName("AEnvA1TLayer":getValue()})
panel:sendMidiMessageNow(m)
.
.
.

[Puppeteer]

OK thanks. I’ll give this a go.

This method will almost certainly be better in the long run as well because I’ll need to change messages of the other MIDI messages based on other panel controllers as I develop this.

The Puppeteer
http://godlike.com.au

[Puppeteer]

Hi Dasfaker,

Thanks so much for your help. I got it working, now the hard work begins to start populating it all.

I’m sure I’ll have more questions as I get my head around everything.

Just one minor change for anyone coming along afterwards

One of the lines above is missing a “)”

m = CtrlrMidiMessage({0xb0, 0x6f, panel:getModulatorByName(“AEnvA1TLayer”:getValue()})

should be

m = CtrlrMidiMessage({0xb0, 0x6f, panel:getModulatorByName(“AEnvA1TLayer”):getValue()})

The Puppeteer
http://godlike.com.au

[Puppeteer]

Just one more question on this,

How would you make the midi channel dynamic (ie set 0xbn) where n is the MIDI channel of the host or panel

The Puppeteer
http://godlike.com.au

[Puppeteer]

Never mind, I worked it out.

There’s probably a much better way of doing this, but this works

-- get the MIDI Channel from the panel and set ch to the hex representation of that
-- ready for transmitting as part of the MIDI message.
-- Will need to move this either to InitializePanel and/or to a method when MIDI Channel changes

ch = string.format("%x",L(panel:getPropertyString("panelMidiOutputChannelDevice")))

-- for debugging
-- console (ch)

if ch == "1" then
	Mch = 0xb0
elseif ch == "2" then
	Mch = 0xb1
elseif ch == "3" then
	Mch = 0xb2
elseif ch == "4" then
	Mch = 0xb3
elseif ch == "5" then
	Mch = 0xb4
elseif ch == "6" then
	Mch = 0xb5
elseif ch == "7" then
	Mch = 0xb6
elseif ch == "8" then
	Mch = 0xb7
elseif ch == "9" then
	Mch = 0xb8
elseif ch == "a" then
	Mch = 0xb9
elseif ch == "b" then
	Mch = 0xba
elseif ch == "c" then
	Mch = 0xbb
elseif ch == "d" then
	Mch = 0xbc
elseif ch == "e" then
	Mch = 0xbd
elseif ch == "f" then
	Mch = 0xbe
else 
	Mch = 0xbf
end -- if

-- Controller 1 Program
	m = CtrlrMidiMessage({Mch, 0x6e, 0x02})
	panel:sendMidiMessageNow(m)

-- Controller 2 Layer.  Get the layer from the AEnv1TLayer control	
	m = CtrlrMidiMessage({Mch, 0x6f, panel:getModulatorByName("AEnvA1TLayer"):getValue()})
	panel:sendMidiMessageNow(m)

The Puppeteer
http://godlike.com.au

[dasfaker]

You can write it this way too.

ch = panel:getPropertyInt("panelMidiOutputDevice")
m = CtrlrMidiMessage({176 + ch, 0x6e, 0x02}) -- 176 == b0
panel:sendMidiMessageNow(m)

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