Audio engine play startup deadline and other issues

[mellow1998]

Hi all, I've been having a number of issues with PT 8.0 and (PT 7.4.2 previously). I often get "Audio engine play startup deadline was missed," "Lost communication with 003," super-loud stuttering noises followed by crash, and just good ol' computer freezes.

Restarting everything fixes the problem until it happens again, which can be 1 minute into mixing, or 6 hours later.

These issues mainly happen in two situations:

1 - anytime I use Izotope RX (1.08) or Ozone (4.03), but the RTAS meter isn't never 14% when this happens. With these plugs I get the startup deadline or lost communication messages. Switching to 3 processors in the engine seems to help, but doesn't rid of the problem.

2 - anytime I'm mixing at 88.2 or 96. in this situation i often get loud stutters followed by crash, or just a computer freeze (mouse doens't move and keyboard commands aren't responsive).

My specs:

Mac Pro 2x3 Dual Core Intel Xeon
Mytek stereo96 ADC and DAC
6 GB RAM
PT 8.0 (engine: 1024 buffers, 4 processors, 85%)
003R
DV Toolkit2

I've tried several things like trashing the prefs and databases, and removed Sansamp. Any suggestions would be great!

[mellow1998]

i forgot to mention, sometimes when PT isn't playing back audio, i'll also get the lost communication message.

[DigiTechSupt]

Reducing the number of processors dedicated to RTAS processing in the Playback Engine will likely resolve these issues for you.