Re: lightpipe interface

"JSVice" <JSVice@xxxxxxxxxx> wrote in message
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"John L Rice" <Drummer@xxxxxxxxxx> wrote in message
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"Mike Rivers" <mrivers@xxxxxxxxxxx> wrote in message
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On Mar 3, 6:08 pm, "John L Rice" <Drum...@xxxxxxxxxx> wrote:
I'd recommend you get 2 of the Lynx AES-16 cards also.

Why two? Doesn't it do 16 channels (eight pairs) on each of the D-Sub
connectors, one for inputs and the other for outputs? Or doesn't the
AES-16 do single-wire 96 kHz? I was pretty sure it did, and 192 kHz,
too. I understand that it can be used in double-wire mode, but his
Apogee converters can do 96 kHz single-wire.


Hi Mike,

In John's original post he was asking for something to " handle 32 i/o
at 44.1 or 16 at 96k" So I had it in my head he needed to support up to
32 channels of input AND output at once. But . . . now I'm not sure what
he needs anymore! ;-)

So, yes, the AES-16 does do 16 channels in and 16 channels out at the
same time, single wire, up to 192 kHz sample rate. I haven't actually
tried that myself, I only have 10 channels of converters and they only
sample at 96 kHz, but I have no reason to doubt what Lynx claims.

John L Rice

Sorry for the confusion. I was quoting the lightpipe specs of the
lightbridge. I just need 16 in and out at 96k. I suppose the reason I
suggested lightpipe is because I've used SMUX before. I haven't used AES.
I'm not morally opposed to AES though ;)
--
Thanks,
John


Ahhhh, I see, no problem! ;-) Get the Lynx AES-16 card and be a happy man!
Some things to keep in mind when getting one :

- they sell several different packages. Basically there are two card
variations, the standard PCI AES-16 card and the PCI AES-16 card with 8
channels of SRC (Sample Rate Convertion) on board. And each card is sold
with and without breakout cables so there will be about four different part
numbers you'll see when shopping.

- there are different cables you can get, some will work for you and some
wont, even though they look the same. There are some nice cables that Lynx
makes that will connect between the d-sub connectors on your Apogee and a
AES-16 card. Probably get the one named CBL-AES1603 if you go that route (8
channels in one direction). Here's a money saving tip. Atlas Pro Audio has
3 of these cables on their used page at
http://www.atlasproaudio.com/usedgear.html You will only need two. These
may be the same cables Nathan originally sold me a couple years ago and they
were the wrong ones for what I needed at the time (I was going to get an
Aurora but decided not to because the ship date kept getting bumped) I'd
offer him $60 for two! ;-)

- Lynx also makes the LS-ADAT card which is an add-on option for the AES-16
card. (I have one) It doesn't give you any additional channels (you select
in the Lynx software which I/O connections to use) but it does provides
lightpipe connectivity if you need it. (although since your Apogee has
lightpipe I/O you can probably just use that with other ADAT devices you may
have in your studio or other people bring in.)

So, if you don't have any need for SRC just get the standard version.

Cabling you'll have to think about though. The cables that are just two
d-sub connectors are really attractive because they reduce clutter/look
neater and are simple, quick and fool proof to connect. The down side is
that if you need to connect another device besides your Apogee into the
AES-16 card, you wont be able to do it. I'd recommend getting the
AES-16-XLR bundle that includes their breakout cables. That way you can
unplug the cables from your Apogee and connect in the 'guest' equipment
using the Lynx breakout cables.

And the most expensive way to go but the most versitle would be to get the
AES-16-XLR and not get the CBL-AES1603. Instead go to
www.redco.com/shopexd.asp?multi=yes&id=655 and get a couple long breakout
cables made to attach to your Apogee. Then, connect all the XLR connectors
together. What's the advantage besides spending 3 times more money? You
can disconnect just one input for another device or route some or all
connections through a digital patchbay router etc.

I'd need to double check but I think the AES-16 has jumper where you can
configure the 2 I/O ports to have one be all input and the other all output
OR each be half input and half output. Give you more options . . . .

Best of luck!

John L Rice



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