FIX the bug of audio missing from export

Finding this thread is a relief. Like everyone else, I've spent hours creating the project then hours upon hours trying to solve this issues. Each export is a lottery; will it miss audio? It's severely restricting my ability to post regularly and consistently to YouTube. I'm not monetized but for those who are, this would be extremely stressful. Surely this is a critical issue when it comes to user experience? Surely with all the computer scientists at Adobe they can jump on this ASAP? It's now been 3 months since the start of this thread.

I'm having the same issue with Premiere Pro 2022. Adobe has not fixed it. I'm not sure they care.

It can also happen in Media Encoder. I had a subscriber point out that one of my videos was missing sound after 9 minutes, so I took the original file (which is fine) and rendered it out with Media Encoder - and put it back up. Well, my mistake for not checking the whole thing (again) because the sound stopped this time after 22 minutes. Rendered it again, 3rd time was the charm.
This was no variable sound rates or files - just one file, rendered out in Media Encoder - that dropped sound two different renders.
H265 30fps if that helps.

Yeah, I have been experiencing this frequently as well. It seems to be caused by differing sample rates in the same sequence, as another user already noted. That said, it is still a bug and the workarounds are really annoying! Greatly slows down production time.

'FIX the bug of audio missing from export' - Problem is usually caused by having different sample rates in the same sequence, 44.1 and 48khz, and particulary where you have audio dissolves. Best practice is to convert music and audio files to 48khz (or to match sequence sample rate) before importing into a sequence. If all your audio is the same sample rate in the sequence you should not experience this problem. If you still have the issue, export a WAV and reimport that and check for any gaps, you may find that a WAV does not have the same export issue as an QT or MXF.

Having said all that, I agree this bug should be fixed!

Could it be the Scratch Disk? I am having a similar problem too and I noticed my C Drive has hardly any space suddenly. I'm going to try and change my Scratch Disk (or Media Cache) location and see if that makes a difference.

EDIT: That was the fix for me! I changed my Media Cache in PP to an external drive with more space and my audio exported perfectly.

@mike117235 churchill

Nope, I have CBR on all my projects and Audio dropouts.

Seem to have found a fix for this bug, and it is actually pretty simple, at least it seems so but might have some negative effects for some users, and that is when rendering out the project choose CBR rather than VBR.
For me it was always where clips joined that the audio would drop out, maybe the encoder doing something where clips join? I really don't know but this seems to have fixed it for me in my daily workflow

FIX THIS ITS SO ANNOYING AND RIDICULOUS. Happens in Premiere Rush too!

I had a 30 minute 4k video that was time sensitive for YouTube and sure enough missing audio in the final export .mp4 tried again noting render time is at least 20 minutes then another watch through still missing audio in a different place, Tried exporting in 1080 because I was running out of time for YT and still had missing audio from a talking head section that was on a single track and half of it was OK then it just muted! Tried one more time and a different section of audio was now missing. Couldn’t post in the end and I’ve now lost views and revenue because of this unacceptable bug. The problem maybe with AME but whatever if my next video does this I’m jumping ship PP is a major part of my workflow and if it’s unreliable it’s useless. Sort this Adobe and quickly! Intel 10900 - 64gb DDR4 - RTX 2080ti - SSD HD with loads of space dedicated scratch disk. PP updated to 31st December 2021. Not happy!