Questions & Answers

Aggregate Device - Stereo Pairs

0 votes
asked Dec 17, 2017 in Thunderbolt - Quantum by jamesmorden (610 points)

So, I asked about it first in the Forum, then advise to do a Ticket, that has come back to post in here.

I only use the Quantum for Synthesizers and 2 ADA8200 8 Channel Pre-Amps over ADAT.  All the inputs are Stereo Pairs, so in Logic Pro X they go Stereo Pair channels 1-2, 3-4, 5-6.........23-24, 25-26 but when I get to wanting to create the next Pair with using an aggregate device, it is offset by 1, because Input 27 is the "TalkBack" channel.

With an Aggregate Device set up, it should continue as a Stereo pair 29-30, 31-32 and so on, but the TalkBack channel stops that.  So what is happening in reality is that Channel 27 is the TalkBack and 28 comes out the right speaker, but is actually the left channel of a Synth, stereo pair 29-30 is the Right channel of a Synth and a Left channel of the next Synth respectively.

I wrote and have images in the Forum:

What I want to do is to be able to disable the TalkBack Input in "Universal Control" so the Quantum is only channel 1 to 26, breaking down to 13 Stereo Pairs.  This way my Aggregate device that follows is also "Even" with stereo pairs.

1 Answer

0 votes
answered Apr 25, 2018 by AlexTinsley (902,860 points)
Best answer
This has been fixed with the delivery of Universal Control 2.6 (released April 17, 2018).

Talkback in previous releases was a mono only signal which some DAWs (ie Ableton Live) were not able to address.

We have delivered an update which now evens the channels by having talkback show up as 2 mono channel to the DAWs can map all the channels when devices are run together in Aggregate.