On Dec 31, 2006, at 11:25 AM, fusionhead5 wrote: To the list, I only answered the questions that there was a reply to, and edited out the rest... > Thanks, George, you make some good suggestions that I will try... > see below for specific > answers to your commments... > > > I have 2 UAD-1's, a Powercore, and use either a Yamaha i88x M-Lan > > audio interface, a Digi M-Box Pro, or just use the digital out of my > > Mac, and do not see this issue very often. > > Maybe my MOTU 828MkII is the problem... are any of the interfaces > you list above using a > Firewire connection? Both, that's why I brought them up. > > > I have run sessions with as many as 40+ 44.1 24 bit tracks, and a > > handful of audio instruments, as well as 20 to 30 audio fx plug-ins, > > including 5 or 6 space designers. > > That is pretty impressive, there is no way I can get that may plug- > in instances at the same > time without getting Core Overloads regularly. I typically use a > mix of 20+ UAD and Logic > plugs, and typically 40+ tracks of audio, sometimes with a few > tracks of audio > instruments. On my G5 dual 2Mhz I am regularly seeing greater than > 60% CPU usage, > spiking up to +80%. I know there is an issue with the UAD-1's. I work around it by using about 5 or 6, and then freezing the tracks. I can't remember the specific amount of tracks, but I can max my card out using the big ones, and can only use a certain number of smaller ones before I get the core audio issue, being caused by the UAD-1 card. I know a few others on the list have come up against this one. > > > Have you tried playing audio just from the Mac, to make sure your > > audio interface, or one of the cables in your system isn't messing > > things up? > > No, I haven't tried this yet, but I will. This may narrow the > problem down to the MOTU > interface. > > I do in fact use a USB hub, but it is not connecting any audio > related peripherals. But I will > disconnect it entirely and see if that has any affect. All my RAM > is high quality stuff so I > doubt that would be the problem, but who knows. Well I had about 3.5 gigs in my G5 and discovered after about 6 weeks of head banging (and not the good kind) that one of my 512 meg sticks was friend. I removed the gig (the G5 wants ram in pairs so both had to go) I stopped having problems. I just wish I could find something like a hardware ram tester so I could use the good one... > > > And please understand I'm saying this with no disrespect meant, > really. I know > > how frustrating this computer stuff can be. > > Your suggestions are very much appreciated, I need all the help I > can get with this! > > > Also, make sure you update to the latest UAD-1 drivers. There have > > been a couple of issues lately that are being solved with the > latest updates. > > I just noticed UA has a new 4.5.0 driver for the UAD cards so I > install it. I also have a few > hints from James Ciglar at UA regarding settings that might reduce > potential FW / PCI > conflicts. The guys at UA are great to deal with, and the webzine has allot of answers to issues as well. Good luck, George Leger III > > FH ________________________________________________________ http://www.myspace.com/georgelegeriii http://www.utopiaparkwaymusic.com Mac AND PC: The only way to fly 8-}