[sdiy] Help. S/PDIF -->hoontech ADSP24s and Yamaha O1Vs (non analog content)

[Batz Goodfortune]

Y-ellow all.
         This is more a scream of desperation than anything so anyone who 
knows not of these things or has no interest, you may graciously tune out 
now. I don't have the missing WMDs so there's no fear of retribution if you 
chose to ignore this post. And wrest assured I wouldn't bother anyone's 
bandwidth if an extensive search had uncovered anything useful.

(Besides if Saddam did give me any chemical weapons I wouldn't have a use 
for them so I would have put them in the rubbish. Hey I wonder if that's 
what Saddam actually did. Check the rubbish tips guy's! They went out with 
the trash on the rubbish night before you invaded.")

Right. Here's the problem. I've licked the physical layer problem. For 
those who haven't heard it confirmed yet, OLD network card pulse 
transformers make excellent S/PDIF or AES/EBU transformers...

The problem is with the hoontech cards (so far I've only been testing with 
the hoontechs) and the O1V. So if anyone has experience with either or both 
then I'm in need of your experience. If not, and someone knows of a list or 
newsgroup (That isn't Yahoo bassed because I can't use Yahoo for some 
reason. that's a whole other story) where people who know specifically 
about this stuff might congregate, I'd be interested.

I'm no techno-gymp. I've just designed a S/PDIF - AES/EBU network and got 
it working, so I'm no stranger to these things, however there seems to be a 
problem with one or both of the above items. Either the option I/O of the 
O1V or the behavior of the Hoontech ST A-DSP24 card(s).

I've been using my DAT machine just to test links. When I feed it from any 
of the Option I/Os (Yamaha YM8-AE AES/EBU I/O card) it tells me that it's 
spitting out 48K sample rate and that it's copy protected. Say what? The 
O1V's internal clock isn't spoze to be able to even do that.

The history of this digital audio problem goes back two years as some here 
already know so I'll skip the details, but essentially the game plan is to 
distribute word clock from the option I/Os to cards such as the Hoontechs 
and get them to lock to it. Then mix them all back digitally into the O1V. 
Fair enough. You're supposed to be able to do this. (Apparently)

Assuming that what the DAT machine is telling me is some aberration, I 
proceeded to test the hoontech card. The card appears to lock to the 
incoming word-clock however there are those tell tail pops and clicks of a 
slipping synch. Which means it's not really locking at all.

What it's doing is anyone's guess and that's where I am right now.

The O1V is NOT supposed to be able to do anything else but 44.1 from it's 
internal clock so how could it be sending 48K and where did the copy 
protect bit come from? I realize the latter could be the fact that the 
subcodes for AES/EBU are different from that of S/PDIF but from memory, 
they don't coincide with any of the lock bits. And since the basic data is 
the exact same, then where's it getting it's 48K idea from?

As for the hoontech, I have no idea. It must be locking at some level if 
only for the fact that it DOES actually spit out audio, but what's 
slipping? Worse still is the problem with the Hoontech Digital XG card. 
Turns out that has an AC97 codec which means it rate converts anything it 
receives up to 48K. Which means I can't daisy chain thru it to try and lock 
those cards together.

Things would be so much easier with a 5 channel rate converter on the O1V's 
option I/O, something that was assured me when I bought it but was lied to. 
It's a long story and I've not made any sound in so long I think I may as 
well just give up.

What I'm getting at is, was I also lied to about this stuff as well? Does 
the Hoontech card actually lock or is it just flakey hardware like 
everything else these days. Does the Yamaha desk have a bug in it? Is there 
something peculiar about it's AES subcodes? It takes me so long to change 
the network topology that to try anything else is just too daunting and 
before I do, I'd like to know that I'm not just assuming this stuff works 
but that it actually will. Or more to the point that it won't and not to 
bother.

I've just had one of Microsoft's wonderful operating systems trash 10s of 
thousands of hours work. Completely obliterating it all. So I'm not really 
in the mood to do any more pointless hassle.

Sorry. I don't mean to spit the dummy but if anyone here is familiar with 
this or knows the appropriate venue for this stuff, I would be very much 
grateful.

Thanks in advance.

Be absolutely Icebox.

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