Well, I'm thinking this is likely a PCI latency problem. My system is as
follows:
ASUS A8V-Deluxe
AMD 64 4200 X 2
4G Corsair CAS2.
Matrox G450
Magma
2 x RME HDSP 9652 PCI
1 x RME Multiface PCI
version 2.94(3), 12/15/2005
4 x UAD-1's (v4.1)
All PCI cards are in the Magma with the Magma host card using PCI slot #4 of the mobo which doesn't share IRQ with anything else. All UAD cards are on IRQ 18 & 19, all RME cards are on IRQ 17. These IRQ's aren't shared with any other devices.
I'm getting crackling in the audio when a use over 40% of the resources of
my UAD-1 cards (13 -20 plugins M/L depending on which are used). Increasing buffers doesn't really do much to solve the problem. Lowering the number of UAD-1 plugins eventually cures the problem. I have also read the article by Tom Freeman and Joe Bryan on the UA website regarding PCI latency so I know the UAD-1 card (and probably the Magma) is involved in this for sure.
I have loaded the DoubleDawg PCI latency utility and I have tweaked the
various latencies. Maybe it did a little good, but it certainly wasn't the
*for sure cure*,,,,,,,,but........while I'm trying to sort out the possible
issues and variables......is there any possiblilty there could also be a
contributing HDSP driver issue as well? Anyone here using RME drivers who has any insight on this before I start breaking things down to rearrange what is otherwise a rock solid system (if plugin count is carefully managed)
Thanks,
follows:
ASUS A8V-Deluxe
AMD 64 4200 X 2
4G Corsair CAS2.
Matrox G450
Magma
2 x RME HDSP 9652 PCI
1 x RME Multiface PCI
version 2.94(3), 12/15/2005
4 x UAD-1's (v4.1)
All PCI cards are in the Magma with the Magma host card using PCI slot #4 of the mobo which doesn't share IRQ with anything else. All UAD cards are on IRQ 18 & 19, all RME cards are on IRQ 17. These IRQ's aren't shared with any other devices.
I'm getting crackling in the audio when a use over 40% of the resources of
my UAD-1 cards (13 -20 plugins M/L depending on which are used). Increasing buffers doesn't really do much to solve the problem. Lowering the number of UAD-1 plugins eventually cures the problem. I have also read the article by Tom Freeman and Joe Bryan on the UA website regarding PCI latency so I know the UAD-1 card (and probably the Magma) is involved in this for sure.
I have loaded the DoubleDawg PCI latency utility and I have tweaked the
various latencies. Maybe it did a little good, but it certainly wasn't the
*for sure cure*,,,,,,,,but........while I'm trying to sort out the possible
issues and variables......is there any possiblilty there could also be a
contributing HDSP driver issue as well? Anyone here using RME drivers who has any insight on this before I start breaking things down to rearrange what is otherwise a rock solid system (if plugin count is carefully managed)
Thanks,