Allen & Heath MIDI Control

[Tommy Nuckels]

I just got a new Allen & Heath Qu-16 and so far I'm loving it.

However I'm not loving my lack of MIDI kung-fu... I tried reading through the other posts, but I'm more lost then ever.

How should I be sending MIDI commands from QLab?

It seems that SysEx isn't the way to go, but what is?

So if I'm trying to control a fader...

Here's the sample A&H provides.

BN, 63, CH    BN, 62, 17    BN, 06, VA    BN, 26, 07

N is the midi channel, CH is the fader channel, and VA is the level.

If I'm reading the midi protocol sheet correctly... http://www.allen-heath.com/ahproducts/qu-16/

My channel (for testing at least) is 1 so B0.

I want to adjust channel 1, so 20.

And I'll set it to 0dB, so 6B.

B0, 63, 20    B0, 62, 17    B0, 06, 6B    B0, 26, 07

I've tried SysEx, to no success.

MIDI voice messages don't work because I need to send hex...?

And I don't see how MSC would tie into this.

Any help would be greatly appreciated and meet with a virtual high five.

Thanks

Tommy

[Rich Walsh]

Bookmark http://www.blitter.com/~russtopia/MIDI/~jglatt/tech/midispec.htm. Read chapter 14 of http://www.adnicholson.com/Sound and Recording, 6th Edition.pdf. Open Calculator and press cmd-3.

$BN is a control change message. They're using NRPN. You need to send 4 CC messages in sequence:

$B0 $63 $20 = CC99 @ 32 on MIDI channel 1 – specify fader

$B0 $62 $17 = CC98 @ 23 on MIDI channel 1 – specify action

$B0 $06 $6B = CC06 @ 107 on MIDI channel 1 – specify value (coarse)

$B0 $26 $07 = CC38 @ 7 on MIDI channel 1 – specify value (fine)

Rich

[Tommy Nuckels]

I got some reading to do... Thanks for pointing me down the right road.