Digital I/O question for LP 7.1.1 w/Mbox2 and Roland Fantom XR

Question

Hi guys,
I'm a little in the fog here.
For the first time, I'm trying spdif OUT from my Roland XR sound module, to the spdif IN on my Mbox2 (firmware v1.24), to Logic Pro 7.1.1 on my Mac via the USB interface on my Mbox2. I would have thought this was simple.
[I bought this setup last October, and analog has always been no problem. Now I'm trying digital for the first time.]
Anyway, no audio is getting into Logic (I record enabled a track).
So to troubleshoot, I simply plugged some headphones into the mbox headphone output to see if it was even getting to, and out, of the mbox from the sound module. Audio isn't even showing up there. I'm looping the demo songs in the sound module so audio is constantly playing. I check the headphone output on the sound module and of course there's the audio, playing away.
FYI, Mbox 2 system preference on my mac is ridiculously absent of options. I can set my clock to internal or spdif. If I set it to spdif, sure enough, the spdif light on the front of the Mbox lights up, AND only when the sound module is on and connected. But none of this has helped my problem.
Does anyone know what I'm missing here?
Thank you to anyone who can help!
Aaron

Answer 1

Aaron, I use a Fantom XR SPDIF output to record. The
thing you must remember is the XR's SPDIF will have
to be the Master Clock reference for Logic otherwise
you will get clicks and pops!
Check the settings in the Audio/MIDI setup under OSX.
You will need to set the Mbox2 as the master clock as
this is receiving the SPDIF input. Hopefully the Mbox
will detect SPDIF and accept that as Master.
Restart Logic and ensure you have sample rate set to
44.1Khz as that is what the frequency of SPDIF is.
I'm aware that this may sound complicated but at the
end of the day if you record from a SPDIF source, it
has to be the master clock for Logic.
Good luck, Rik.
Rik, I was wonder how this would work. When I tried to use
SPDIF with my Mbox1, I could never get Logic to see the
input. I am not sure it was supported. But I can use my
Saffire's SPDIF but I have never set it up as master. When
you mentioned it had to be the master clock, I went into Logic
to see if it showed up as a choice. For syncing Logic only has
choices for
internal
midi clock
MTC
Manual
which one should I use to make the interface the master?
Logic only mentions listening for MMC.
Thanks