OCA / AES70 commands from QLab?

[Matt Padden]

Hi,

Has anyone any experience using Open Command Architecture (OCA, also known as AES70) commands? I have a possible requirement to remotely recall presets on a d&b D20 amplifier, without the hassle of switching out of QLab to the amp's Web Remote page (or the d&b R1 software), make the preset change, and switch back to QLab. Instead I'd like to be able to send the command directly from within QLab, via an Applescript Cue or somesuch.

Many thanks,
Matt

[Sebastian Frost]

Hi Matt,

I believe (but anyone feel free to correct me if I’m wrong) that it’s not possible. 

The DS100 sends and receives OSC, but communicates with R1 via OCA. That’s one of the reasons Fig53 have done amazing work to add DS100 functionality to QLab. Alas, that doesn’t (yet) apply to parameters that are R1 exclusive (rather than Soundscape).

Seb

Sent from my telephone

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[Matt Padden]

I asked d&b about this. The very helpful folk there have provided the info below as a way of sending raw OCA commands directly from QLab using a Script Cue. Many thanks to Bill Brooks at d&b for looking into this. These should work for any OCA-capable d&b amp that you can reach on your show network. 

---------- Forwarded message ---------

Apple script: 

I have just adapted the raw message string to the OCA AmpPreset trigger message and updated the IP address to one of my D80's and adapted the IP port which is fixed 30013 for d&b OCA amplifiers. 
This is what the Apple script looks like for triggering the AmpPreset 1 for an amplifier with IP address 172.16.4.44: 


-- ************************************************************** 
-- Trigger AmpPreset 1 for amplifier with IP address 172.16.4.44 
-- last byte in the long sequence of bytes is the preset number 
-- ************************************************************** 
do shell script "echo '3b00010000001b010001000000120000013000002713000300030101' | xxd -r -p | nc 172.16.4.44 30013"

Other OCA script: 

this is what we can provide. As it is, without support!! 
And there is only writing possible this way no reading of objects. 

OCA Test Strings

• TCP Port for OCA communication: 30013

These are some pre-formatted OCA strings you can use to test if your TCP messages are arriving properly at your amp!

• MUTE 
  Mute A:   3b00010000001b01000100000012000006c410008205000400020101
  UnMute A: 3b00010000001b01000100000012000006c810008205000400020102
  Mute B:   3b00010000001b01000100000012000006c510010205000400020101
  UnMute B: 3b00010000001b01000100000012000006c910010205000400020102
  Mute C:   3b00010000001b01000100000012000006c610018205000400020101
  UnMute C: 3b00010000001b01000100000012000006ca10018205000400020102
  Mute D:   3b00010000001b01000100000012000006c710020205000400020101
  UnMute D: 3b00010000001b01000100000012000006cb10020205000400020102
  
• POWER 
  Power On:   3b00010000001c01000100000013000006fb1000010000040002010001   
  Power Off:  3b00010000001c01000100000013000006fb1000010000040002010000 
  
• Pre-formatted OCA strings for the "Load" command of the Presets Agent. 
  • The preset number is contained in the last byte!

Load Preset 1: 3b00010000001b010001000000120000013000002713000300030101
Load Preset 2: 3b00010000001b010001000000120000013000002713000300030102 

Matt

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Matt Padden
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