Logic. UAD-1, Host Processor peaks.

[Stephen Bennett]

I'm running Logic 7.1 on a 2nd Gen Dual 1.8 (PCI), Panther.

When the UAD-1 is at about 80% CPU load I'm getting a situation where both Logic CPU meters shoot up into the red and I get Core Audio errors. The weird thing is that it doesn't always happen. Sometimes when I press play, the CPU meters are at an expected 20%, then they'll shoot up to @100% after a few minutes. Sometimes it happens when I press play right away. Sometimes it's better when audio tracks are selected, sometimes not.

If I reduce the UAD-1 load to under 70% all is OK.

Anyone know what's going on here?

Regards

Stephen

 

[UAJames]

Hi Stephen,
What sound card (audio interface) are you using, and also what are your Hardware and Process buffer size settings in Logic?

 

[Stephen Bennett]

James

Thanks for replying.

I'm using a MOTU 896 Firewire, buffer size 128 or 512 usually - but all sizes cause this to happen.

Regards

Stephen