ADAT Syncing

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doktorfuture
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ADAT Syncing

Post by doktorfuture »

Hi all, I'm having syncing issues.

I've tried lots of things, but still getting clicks and pops at the best of times. Here's what I've got set up:

XITE-1, sample rate 48000, Master
A H8000fw via ADAT, syncing to ADAT (shows XITE frequency at about 47997 to 48000).
A TC Electronic Konnekt 24D connected to a Pacarana, syncing to ADAT.

Some combinations are really hazy bad, and the best I've managed to get is with H8000fw as master, but if I do that, the Pacarana via the 24D is all skippy. With the XITE-1 as master, and the other two devices as slaves, it's pretty clear, except for clicks and pops every now and then. All the fibers are new and are well seated as far as I can tell. I think what should be stable is to have the XITE be the master, and the other two devices as slaves, but it doesn't seem to be working.

Also, if I play from iTunes just through the XITE-1, it stutters every now and then. Is that normal?
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siriusbliss
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Re: ADAT Syncing

Post by siriusbliss »

It may not make any difference yet, but what is your ULLI setting (in system setup)?
Have you tried AES/EBU to the Eventide, and leave the TC as slave?

It would probably be good to let SC know what you're trying to do, to see if there may be any other issues or recommendations.

Greg
Xite rig - ADK laptop - i7 975 3.33 GHz Quad w/HT 8meg cache /MDR3-4G/1066SODIMM / VD-GGTX280M nVidia GeForce GTX 280M w/1GB DDR3
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garyb
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Re: ADAT Syncing

Post by garyb »

actually, digital sync is pretty easy. there must be ONE master and the rest must have inputs connected to be slaves. serial connection does NOT work well. you need parallel connections with a common master for stable sync. do you have a couple of devices there that can only be master? you may need a wordclock distributor and bnc in order to get a clock in for all devices....
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doktorfuture
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Re: ADAT Syncing

Post by doktorfuture »

Surprisingly, the system doesn't sound good with the XITE-1 as the master, but it does work OK with the H8000 as the master.

Problem is my clock distribution is all BNC, and the TC Electronic Konnekt 24D doesn't have a BNC Wordclock input. I just grabbed it because I thought I'd hook up some external processing via ADAT. I'm not too used to ADAT really, and just tend to use AES/EBU in the studio with Mytec clock distribution.
garyb wrote:actually, digital sync is pretty easy. there must be ONE master and the rest must have inputs connected to be slaves. serial connection does NOT work well. you need parallel connections with a common master for stable sync. do you have a couple of devices there that can only be master? you may need a wordclock distributor and bnc in order to get a clock in for all devices....
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garyb
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Re: ADAT Syncing

Post by garyb »

sure, you can use bnc. with all those devices, i wouldn't do it any other way(the mytec should be master and all else should be slave). you can still use adat connectors when using bnc. you don't HAVE to clock thru the lightpipe cables...
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doktorfuture
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Re: ADAT Syncing

Post by doktorfuture »

24D doesn't have BNC, so Pacarana is a problem.
garyb wrote:sure, you can use bnc. with all those devices, i wouldn't do it any other way(the mytec should be master and all else should be slave). you can still use adat connectors when using bnc. you don't HAVE to clock thru the lightpipe cables...
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garyb
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Re: ADAT Syncing

Post by garyb »

so what is the real advantage to using that interface?

i see that it has a couple of mic pres, but it's firewire and has no bnc, so it's consumer audio(though good consumer audio). you could turn that unit into another mic pre or other device to connect to the XITE. the XITE has plenty of i/o...
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doktorfuture
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Re: ADAT Syncing

Post by doktorfuture »

I just had it lying around to use the Pacarana with the XITE-1 without extra DA/AD. Figured it would interface with ADAT. I normally use the Pacarana with an Apogee Duet in a portable system.

It's consumer audio yes. Just messing about with the XITE-1 after I got it and hadn't done anything with ADAT before. It's not permanent.

Cheers
garyb wrote:so what is the real advantage to using that interface?

i see that it has a couple of mic pres, but it's firewire and has no bnc, so it's consumer audio(though good consumer audio). you could turn that unit into another mic pre or other device to connect to the XITE. the XITE has plenty of i/o...
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garyb
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Re: ADAT Syncing

Post by garyb »

right, well as long as it has adat inputs, then you can sync it. otherwise, you'll have to make that the master...
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