PT7.4 and PT8 problems with melodyne plug-in and ozone 4

[der daniel]

hey there,

after months (almost years) of a perfect working PT system i'm (finally) back with a problem:
i recently purchased celemony melodyne plug-in and it starting shooting my audio interface down. the message "lost communication with audio interface..." appeared frequently. i also had cpu-clipping, so i increased the buffer size.
then no clipping appeared anymore, but still my audio interface was shot down.
now i upgraded to PT 8 and downloaded ozone4 trial. i never had any problems with ozone3. but i now have with ozone 4: "lost communication with audio interface..."
what is going on? anyone any idea? is my system too slow for even only one plug-in of melodyne or ozone4?
oh, one more thing, with ozone4 this problem even occurs if i'm not even working - with just the pro tools session open.
everything else works fine. great new PT version. very nice improvements! finally there is chorus etc available for non-destructive use. congratulations!

with kind regards,

daniel/Germany

[DigiTechSupt]

Daniel - can you provide a little more info on your system, so that we have enough to troubleshoot properly? We don't even know which Digidesign hardware you're using.

Please see the Help Us Help You thread for details.

[der daniel]

ooh, how stupid. sorry!

iMac 2.4 GHz Intel Core2Duo
4 GB 800 MHz RAM
OS X 10.5.6
PT 8.0 (with this cs1 update for mac installed)
DIGI 003
no other firewire or usb devices attached beside keyboard, mouse and 2 iLok
i'm using the internal HD to record on

thanks for helping out!

[The Dougfather]

Did you resolve this?

I'm experiencing similar problems with the exact same plugins.

[protoolsuserman]

I'm having similar problems with this exact same configuration as well.

Make sure you are recording to a different internal audio drive or an external firewire hard drive which has the oxford chipset in it and is connected via a sepperate firewire buss.

You may have to install a sepperate firewire pci or pci express card for this to work.

I still haven't been able to sort this problem out though.

I am gonna try and uninstall ozone 3 maybe? or Ozone 4 and see if my probelms still continue.

[Litemup]

it rewire
check the log when pro tools crashes it will tell u the problem

[The Dougfather]

Reducing CPU cores alleviates this issue, arghhhh.

[ChuckS]

Originally Posted by Litemup

it rewire
check the log when pro tools crashes it will tell u the problem

Not with the Melodyne Plugin - that's not a Rewire version.