NRPN parameter mapping for Channel Mute QU-series

Qu Qu DAW Integration
1

I’m looking for the definitive Parameter Number to address channel mutes on the Qu-series of boards via NRPN Midi messages.

I found documentation for the (newer) QU-5/6/7 series that looks like these should work:
B0 63 3D B0 62 00 B0 06 00 B0 26 00 (mute off/mic on)
B0 63 3D B0 62 00 B0 06 00 B0 26 01 (mute on/mic off)
(i.e. no particular parameter selection in the 2nd and 3rd CC triples, mute state value in last triplet)

But this doesn’t seem to be working for the older models with v1.9+ firmware.

It seems unlikely that that mute parameter has been left out of the otherwise consistent NRPN implementation, but the MIDI documentation refers only to Note On messages for channel mutes.

I am developing a ShowPlayer app that remote controls mute states on digital mixers and am looking to create a protocol template for A&H users. Note On is a possibility, but it requires Midi channel strip setup on the user side which could be avoided by finding the right parameter for Mute. Any solid info on this?

2

Just in case someone else may be looking for an answer to this in the future:

Turns out, the Qu-series that the Qu-16 belongs to responds to NoteOn messages to control channel mutes on MIDI channel 1, without setting up any custom MIDI map in board settings. I don’t know if this also applies to the newer generation of QU-5/6/7 (if anyone knows please reply to this post!)

A few peculiarities:

  1. Channel numbers in the midi message have to start with 0x20 for input 1 on the board and go up from there.
  2. Mute ON (channel is muted) is note value 127, Mute OFF is 1! 0 will be ignored. That’s a bit unusual as most all other boards interpret values 0-63 as OFF and 64-127 as ON.

So, an example message sequence looks like:

Mute OFF (unmute) input 1: 90 20 7F (90 is NoteOn on Midi Channel 1, 20 is input 1, 7F is 127)
Mute ON (mute) input 1: 90 20 01

The board will understand these directly if you leave the MIDI Channel at 1 which is the default setting in the board.

3

Thanks for posting this. It is inching me towards an answer to my question. Maybe.

If anyone can help me with this it would be great. I have set up my Qu-24 so that softkey 8 is Talkback. I wish to send a message to the Qu-24 from my DAW (REAPER) to enable and disable the Talkback. So far all my searching says that I should be sending 90 55 7F to enbale softkey 8 (and thus talkback) and then send 90 55 00 to turn off or unpress softkey 8.

I have installed the latest MIDI DAW control software for my PC. What I can’t figure out is which protocol I should select in the dropdown. If I select QC Translator and then connect via TCP/IP I can see that messages are being received and sent because the little boxes light up. However I get no response the the Qu-24. Yes it is connected to the network and the MIDI Control software shows it.

If I select Mackie Control then there seems to be no communication. If I select MIDI Ports instead of TCP/IP there is no communication.

If anyone has insight on how this should be configured I would really appreciate it.

Thanks,

Jones