• Welcome to the General Discussion forum for UAD users!

    Please note that this forum is user-run, although we're thrilled to have so much contribution from Drew, Will, and other UA folks!

    Feel free to discuss both UAD and non-UAD related subjects!

    1) Please do not post technical issues here. Please use our UAD Support Forums instead.

    2) Please do not post complaints here. Use the Unrest Forum instead. They have no place in the the General Discussion forum.

    Threads posted in the wrong forum will be moved, so if you don't see your thread here anymore, please look in the correct forum.

    Lastly, please be respectful.

4.0 and Sonar a dual core disaster... for me


Active Member
:( 3.9 works fine on my AMD dual core machine, but 4.0 is a mass of pops, clicks and gravel. Nothing I do seems to help. It's the same in Sonar 4.03, 4.04 and 5. I've tried everything I can think of, changing PCI slots, PCI and buffer settings on the UAD configuration(reseting the Sonar audio engine with each change), DMA buffer settings for the Delta 1010, different delta 1010 drivers, Sonar latency and wave profiler and probably a few more things I can't think of right now. Seems to me 3.9 supports dual core but 4.0 does not......
Anyone got any ideas?



Im sorry to say it, but I have exactly the same experience

Ny Setup:
Mosherboard: ASUS P5AD2-E
Memory: Crucial DDR2 PC 3200, 1Gb
Graphic card: ASUS EN 6600 GeForce 6600 PCI-EXPRESS
Processor: Pentium 4 630 3.0 GHz
UAD-1 v4
ONYX FireWire and ONYX 1620 Mixer
Software: SONAR 5PE and SoundForge 8.0
OS: Win XP SP 2 with FireWire-fix and hyperthreading hotfix


But I have found a solution I can live with while I'm waiting for an optimal solution: Turn off hyperthreading or turn off fastbounce when you freeze tracks or bounce tracks or export audio...
UAD Bundle Month