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darkcyde6666
Participating Frequently
July 20, 2017
Answered

Premiere Pro / Audition Edited Audio / Audio Sync

  • July 20, 2017
  • 1 reply
  • 2441 views

Hi

I've been having an audio sync issue after export (scrubbing through the timeline beforehand and everything is sync'd perfectly).....it's out by just a few milliseconds, but enough to annoy me.  It's fine at the start of the exported video, but slowly loses sync over the course of the video.

At first I thought it was codec choice, or other settings, so I've spent the best part of a week adjusting and exporting without any luck until today.

My process is this; when I've imported everything into Premiere, I then send the audio to Audition to level the audio, etc via the right click and Edit Clip in Adobe Audition, and it's this step that causes the sync drift.

If I export WITHOUT editing in Audition, then the sync stays in place perfectly, but as soon as I edit the clip in audition, then the export suffers from sync loss.

Has anyone got any idea why?

In Audition I amplify the audio, and use the single band compressor, apply the effects, then save it back out to Premiere - is there any way to do these processes in Premiere without having to export to Audition?

Many thanks in advance!!

Leo

This topic has been closed for replies.
Correct answer brian704

Unfortunately I don't have the funds for hardware recording just yet so have to stick with what I can afford.

Encountering another problem now.....with the audio effects applied to the clips, Premiere Pro is now locking up on me.....if I bypass the effects, all is well again.  My editing machine is no slouch either....it's no Xenon, but its still a high level i7 cpu


It's always better to apply fx to subs or channels rather than individual clips - much less processor overhead

1 reply

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darkcyde6666Author
Participating Frequently
July 20, 2017

I've just found the same audio effects within Premiere, so that's a workaround, but I'd still like to get to the bottom of why editing clips in Audition causes audio sync drift

brian704
brian704
Inspiring
July 20, 2017

I use the Audition round trip on almost every video, and have not seen sync issues - even on 30 minute projects. Is the sync out on audio recorded in-camera (same file as video) or double system?

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darkcyde6666Author
Participating Frequently
July 20, 2017

Well, I'm recording video and audio from two sources.....the first video stream has one of the audio sources, and the second video stream has a mix of both audio sources.

When I analysed the sources I noticed that the video was 1 second longer than the audio on both streams, despite them being recording within the same application (two instances), but I was having some encoder/cpu issues (CPU was getting near it's ability limit), so I've just installed a new GPU to handle the on-the-fly source encoding, which has allowed me to increase from 30fps to 60fps.  I will be fully testing this tomorrow with a 30 to 45 minute recording so it will be interesting to see if there is still the disparity.

I've utilised the Premiere Pro sound mastering effects, and that seems to be working, but I've not run a full encode yet.....I'm just about to start that running.

I didn't have any problems at all until I started to use multiple sources and combine them in PP rather than mixing them together at source and dealing with just one overall stream, but I wanted to preserve the separate streams so I started to record them individually, and then improved the audio by using Audition and that's when the slippage started to occur.

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