[OliverParticipant]

@NicolaA&H

I’m sorry, but I have to say, that your command isn’t right…..

It’s not 00, 00, 00, 01, 00, 7F, F7
it is 00, 03, 00, 01, 00, 7F, F7

to mute chanel 1 in Zone 1

00, 03, 00, 01, 01, 7F, F7 -> for chanel 2 in zone 2
00, 03, 00, 01, 02, 7F, F7 -> for chanel 3 in zone 2
and so on…..

[OliverParticipant]

Good Morning 🙂
First, I have to thank you both again for your help! You both are very kindly!

https://www.allen-heath.com/media/AHM-TCP-Protocol-V1.4.pdf
I know this documentation, and it’s helpful to level the inputs and zone outputs. Like I said, the leveling works pretty fine!

And in this file also is shown how to mute an input/zone cross point.

@NicolaA&H
It’s not I’m trying to mute a complete input. I have to mute an input in a zone. So, I’m thinking, muting the cross point is the right (and only) way.
Thanks for your example, but sadly it doesn’t work.
If I, and I do so, believe in your command “00, 00, 00, 01, 00, 7F, F7” the issue has to be in the SysEx header. The SysEx header is more or less constant. There are only 2 variables that could have only one value:

This applies to all SysEx messages described later in this specification.
F0, 00, 00, 1A, 50, 12, MV, mV
AHM TCP/IP Protocol V1.4 2 Issue 2
Where MV = 01 (Major version)
mV = 00 (Minor version)

So, the SysEx is always and for every machine “F0, 00, 00, 1A, 50, 12, 01, 00”. Is this correct? Or can the values be different?

If this is correct, what is going wrong with the command?
The communication is not SSL protected. And the whole command string (including SysEx header) I’m using is “F0, 00, 00, 1A, 50, 12, 01, 00, 00, 00, 00, 01, 00, 7F, F7”
Is there a break needed between the header and the command? Who long should it be? Or any termination at the end, like LF or CR or both of them?

Maybe the configuration of the machine is the issue? The input 1 is mono, but the zone 1 is stereo (zone 1 and zone 2 are bound together). Maybe this needs different command?

Happy to hear from you!
Thanks!

[OliverParticipant]

Okay, let me thank you for the help. But I don’t get it….
What you send seems more like a manual to configure a software like Cubase, but (maybe I’m wrong) not a manual for the protocol.

So, I’m sorry, but I need further help…

I don’t use a software. I’m trying to control the AHM from a Linux script. I also can’t found any MIDI configuration in the AHM.

So, I’m very sorry, but I didn’t get it!

BTW: Things like “It took 1 min to find it.” are not very helpful. Maybe you are more familiar with MIDI and/or Allen&Heath, and maybe it took less than 1 minute for you to found a solution. But not for me 😉

[OliverParticipant]

Hi
Okay, this is an old post, but the only thing I found. So, I hope someone can help….

I’m using a AHM16 and try to mute the cross points (input to zone).
Leveling the Zones and Inputs are no problem. So the network and the source code is working. But I don’t understand, what I have to send to mute a cross point

Input to Zone, and Zone to Zone Send Mutes
SysEx message
Where SndN and SndCH are the MIDI channel and note number for the channel to be sent to.
Mute On Message:
SysEx Header, 0N, 03, CH, SndN, SndCH, 7F, F7
Mute Off Message:
SysEx Header, 0N, 03, CH, SndN, SndCH, 3F, F7

Like I understand, I should send the following HEX-Numbers

F0, 00, 00, 1A, 50, 12, 01, 00 (for the SysEx Message)
00, 03, 00, ??, ??, 3F, F7 (This is for channel 1)
The problem is SndN and SndCH. I can’t find any documentaion and don’t know what to send.

Please help!

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