Let's see if I can explain this...
If I direct link a sequence from PP to Audition and then bring in a rendered mp4 as a reference (both 48khz), and put the audio from the reference vide on a separate track. There is a slght offset (around 4-5 ms) causing an echo when I play the reference audio and the audio from the direct link operation at the same time. Get the same result if I bring in an omf and the reference movie into Logic Pro X.
The reason for bringing in the reference video with sound is that I want to double check the sync.
I have a musician and audio background so I might be a bit picky with sound....
How do I remedy this without nudging the audio clips? I there something in the export of the reference video that I might have missed?
The format of the clip I have used as a test is ProRes 442 48KHz 16-bit stereo (rendered from a AE composition)
I am running the latest version of all the Adobe applications and using a MacBook Pro early 2013 15" 16GB and GeForce GT 650M and OS X Yosemite 10.10.1.