Apogee AD8000

[jayruston]

i recently hooked up an AD8000 as my main converter, with its clock set to crystal (internal). what do i set pro tools hardware set up to? sync:digital, or internal. at the present time i have pro tools set to digital clock source, everything seems fine. thanks for the help.

[MagicMark]

Jay,

Which Pro Tools Hardware are you referring to? Is it another Digi Interface such as the 888/24? Are you referring to a setting in the "Hardware Setup" Page?

[Chief Technician]

It all depends on how you are clocking your studio. Is the AD 8000 your main clock? If so, you will want to set Pro Tools to "Internal" sync. When the sync is set to "Digital", Pro Tools looks at the clock signal on the digital input for channels 1 and 2 (AES or S/PDIF depending on what you set in the hardware dialog box).

[fire2k2]

Originally posted by Chief Technician:
Is the AD 8000 your main clock? If so, you will want to set Pro Tools to "Internal" sync.

<font size="2" face="Verdana, Arial">I'm not sure that's 100% accurate. If both sides are set to internal sync, wouldn't they both be running on different clocks and not all be clocked together? I believe you would have to set PT to external sync in order slave it to the Apogee as you'll definitely want to use the 8000 superior master clock.

L-Fire
EMO

[Allan Speers]

No, cheif-Tech was correct. Both to internal.

-Be aware that not all 8000's respond to PT software commands. On some units, you must set the 8000 manually for sync and sample-rate. there is a chip you can get from apogee to change that, depending upon how you like to work.

Personally, I think having the hardware follow the software is a good isea unless you have a REALLY good reason to do it the other way.

[fdc]

Speer, are you sure he's using the AD8000 in 888 emulation mode? Perhaps he's really just using it as a converter... In that case it wouldn't respond to ANY pt commands.

Question for anyone... Does the stock AD8000 output superclock? Haven't used one in a while. I didn't think they did.

jayruston, can you tell us more about your setup?

[Inaam]

The stock AD8k by itself doesn't output superclock. Only the Digi-8 card does.

And if you're running with 192s you have to clock the AD8k from the 192, select clock source for the ambus slot you have your PT card in.

If running with Mix plus, keep clock source as crystal and PT hardware setup clock source as internal. I believe with AD8000 front end I never changed the PT hardware setup from internal.

Inaam

[EJolson]

Originally posted by Inaam:
And if you're running with 192s you have to clock the AD8k from the 192, select clock source for the ambus slot you have your PT card in.

<font size="2" face="Verdana, Arial">Hmmm, doesn't that kind of defeat the purpose of using the AD8K in the first place?

[jayruston]

hi eveyone, thanks for your help so far. basically i'm running a G4-750 mghz, with a pro tools 24 mix plus system, using the AD800SE as the master clock, then two 888's after that, word clocked to the 8000. i set pro tools to internal, and the apogee to crystal(internal) and everything seems fine. i just wanted to make sure, cause you never know. in the playback engine setup, the 8000 is not listed in the choices, so i left it set to 888 24 i/o.

[jayruston]

sorry, forgot to mention, i'm running 44.1, 24 bit.