Rendering Hundreds of Audio Previews Upon Export, Long Render Times

Hi everyone,

I have an assembly cut of a feature, with footage and a timeline at 422 ProRes HQ, 24 fps, 96kHz audio.

When I try to export any length of a clip, I get exorbitant render times and hundreds of audio previews to render.

Video alone is rendered almost instantaneously.

There are some audio files on the timeline (music and SFX) at 48k sample rate.

Any ideas what the problem is?

Thanks.

Premiere CC 2014

OSX Mavericks

2 X 2.66 Quad Core Xeon

32 GB memory

NVIDIA Quadro 4000 w/ CUDA

3 tB 7200 RPM - RAID 0