My limit on PCI E on a MACPRO 8 core 3 ghz is 180 faders
I can route my 84 entries more than twice !!! than not using the CPU
as it is the PCI card that does all the job !!
What about your 896 ?
On Aug 1, 2008, at 11:47 AM, Richard Burnett wrote:
Sorry, I wasn't clear. There does exist FW800 interfaces, but no
real push to move to them because there isn't a big advantage to
using them. The data speed is overkill.
The UAD problem is because data has to get in and out of the card,
and there is a lot of other stuff happening at the same time, I
agree it is much more of a complicated matter, but a good example of
PCIe cards having trouble in a real time application.
As for pops and clicks, there exists MANY FW interfaces that do not
have these problems. Many times, it is faulty drivers or faulty
hardware that just doesn't perform well. I had a 2048 mkII that
would pop and click on a PC because the PCI bus controller on the
motherboard didn't work with packet sizes that were common to most
motherboards, talk about frustrating.
People get pops and clicks with PCI cards as well, especially
depending on which PCI slot the card is in and how much bus activity
you have going on on the PCI bus at the same time. I've seen MANY
examples of bus contention with network cards, video cards, DSP
accelerator cards and of course sound cards. Neither firewire or
PCIe is free from these issues in certain configurations.
To take this even a step further, because a card is design from PCIe
doesn't mean it works at the fastest speed that PCIe supports.
There are many different PCIe specifications that work at different
speeds. My PCI UAD card supports the same throughput as the PCIe
version I have. This of course being a limitation of the DSP on
I use logic pretty extensively and I can say there are definitely
some issues NOT related to sound cards that are causing pops, clicks
and hiccups with the system. Long plugin chains on a track will
stay on one processor, so there is issues with load balancing it
appears. Sometimes, projects will just get stuck working with one
processor and not the rest caused drop-outs. Reloading the project
makes it go away.
But back to the interface, from a technical level, even if you
replace the PCI card, the unit still runs at the speed it was
running at before, so you still get the same throughput. The PCIe
card is still going to be waiting for data from the interface.
These are all of course opinions anyways :) But when I went from my
G5 tower to my MacPro tower, it was nice not having to shell out a
bunch of money for an update card for the 2 896HDs and 1 896 I had.
Of course, I did have to buy new UAD cards, but I was able to sell
the old ones to people staying with the G5.
Anways, to the original question asker, I hope you found some good
responses to your questions! :)
Asylum Studio Productions
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