003: Optical I/O at 24/96?

[Mount Royal]

Is it the case that the 003 interfaces accept optical I/O only at 44 & 48 KHz?

My goal is to transmit 2 or more channels of audio at 96KHz using a Lucid 88192 interface. I am told by my dealer that the 003 interface family will permit a maximum sr of 48KHz when using optical I/O. The dealer explains that the only means of getting 96Khz audio into a laptop-based PT system is to use the M-Powered Pro Tools version, and the M-Audio interface, and that a four channel limit would exist at the high 96 sr. I'm further told that Pro Tools M-Powered and Pro Tools LE can exist on the same Mac OSX laptop.

Thanks for any help. I come from the backgrounds of PT HD and LE M-Box, so this is new.

John Caldwell

[flommer]

Is it the case that the 003 interfaces accept optical I/O only at 44 & 48 KHz?

This is true. You can get 2 ch of 96khz via the coax spdif connector..

I don't know about the M-Audio stuff

[Mikeren]

The 002-003 interfaces will do 2 channels of 96K over the optical connector if it is set to S/Pdif.

But--the Lucid doesn't do optical S/Pdif--only ADAT and it uses SMUX which Digi interfaces don't support.

In theory, a M-audio interface that supports SMUX will input 4 channels at 96 over a single optical connector. 8 channels SMUX requires two optical connectors. I don't know how the M-Audio interfaces show up in the software--that's why I say "in theory".

MR

[flommer]

At 96kHz, it is recommended that you use
the S/PDIF (RCA) port

I read this in the 003 getting started guide and just filed it away as "no 96khz over optical". Digi does not explain why they are making this recommendation.

[Mount Royal]

Thanks for this input, everyone. This corresponds to my dealer's comments as well. I'm a little disappointed that we're limited to four inputs, and have to go the M-Powered route to do it.

John Caldwell

[Maddawg383]

Yes , you can have both PTLE AND PTMP on the same computer but the have to be the same version.

[peppertree]

You can get all 8 inputs @ 96KHz via SMUX with the M-Audio Profire 2626, which is the interface you want. The Digi interfaces will not allow low-latency monitoring with outboard converters.

(Digi hates you and M-Audio alike. )