Snap, Crackle and Pop

[PlasticMoonRain]

Being a recent UAD-1 customer, I noticed that after applying at least a few Powered Plug-Ins, I get a crackling out of my speakers.

I'm very surprised since the UAD-1 memory is reading 25% and my CPU is not even 50%.

I run Cubase SX3 on a MacG5 running OS10.3.8.

Is this a case of strain on my card?


THANKS.


Drew

 

[Trace]

It sounds like a PCI Bus issue. Try lowering the PCI Latency of the UAD. Open the UAD-1 Performance Meter under File > Configuration. You'll see PCI Bus and in that section MIN_GNT: 128 just lower that number and test the song. I have mine set as low as 8 and all my Pops went away.

TRACE

 

[UAJames]

Also, if you have a PCI-X G5 (AMD-8131 PCI-X chipset) make sure you have AMD-8131 mode checked in the Configuration panel (unless you have the cards in a Magma chassis). With UAD-1 v3.7 and higher the driver should automatically set the proper setting, but it can't hurt to double check. I'd also recommend reading our two webzine articles about the UAD-1 and performance in these PCI-X G5s:

http://www.uaudio.com/webzine/2005/March/index5.html
http://www.uaudio.com/webzine/2005/may/index3.html