How to use 2 devices chained with ADAT optical cable

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viktorsmari
Posts: 1
Joined: Thu Mar 14, 2019 8:30 am

How to use 2 devices chained with ADAT optical cable

Postby viktorsmari » Thu Mar 14, 2019 9:01 am

I am trying to use a Firewire device with an external device connected via Optical on Linux.

FYI: This setup works fine on the same Laptop (dual boot) when running Mac OS (El Capitan) but I first had to install a OSX mixer/driver from M-Audio. Confirming that the devices work and wiring are correct.

However on Linux, both devices work independently, but I don’t know how to use them together.
I connected 2 microphones, 1 to each device and was able to record only from 1 device at a time.

In qjackctl I can select each device, but how can I use both at the same time f.x. in Ardour?

Image

If I select the following interfaces (and restart jack):
    FW2626 (hw:1) = Using M-Audio only. 10 inputs available
    FW2626 (hw:1,0) = (same as above)
    FW2626 (hw:1,1) = Using Focusrite only. 16 input available (not sure why 16 show up)
Setup:
    MacBook 2010 - Ubuntu Studio 18.10
    Ardour 5.12
    Jack with ALSA driver

Audio Hardware:
    M-Audio - ProFire 2626 - connected via Firewire to Macbook
    Focusrite Octopre mkii - connected with Optical cable + Wordclock

Focusrite settings:
    Wordclock
    Locked

How can I use both devices at the same time, so I can record ~16 tracks at the same time?

Note: This was first posted on the Ardour forum https://discourse.ardour.org/t/using-a-firewire-device-m-audio-profire-2626-connected-to-another-device-via-optical-cable-focusrite-octopre-mkii/100665

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