Audio clips missing from exported video (Audio works while editing in Premiere)

I had the same issue.

Strictly speaking this isn't a phase issue but a polarity issue. The stereo clip has two mono tracks on left and right but the polarity between the two tracks is 180 degrees out. When played on stereo speakers you will still hear both sides but they may sound a little odd, when played on a mono device, often a phone, the two tracks will cancel themselves and you will hear nothing. This polarity issue is often caused by using a XLR balanced 3 pin mono microphone fed into a stereo 3.5mm 3 pin jack using an incorrect adaptor.

Hi Richard,

Yes this works, thank you for your help.

I couldn't imagine both phases being exactly the opposite at all frequencies! Wow, Thank you so much

Hi Ian,

Here is the issue using the template you provided...

Issue - Exported video file doesn't play back on some media players, where a line of audio/dialog is missing. The audio is there when editing and when I playback the exported file on my computer. So Adobe Premiere seems to have an issue with its codec?

Steps to reproduce - I have deleted imported raw footage and deleted render files, then I imported the raw footage again. Didn't work.

I exported the audio as a WAV file from Adobe Premiere then replaced the original audio with the wav file. Didn't work.

I sent the raw footage to another computer with Resolve to export it as a WAV file, then added it in Premiere. Didn't work.

I opened a new project to see if this would help. Didn't work

So I have adjusted the import file type and still this audio does not come through on the export for certain media players.

Expected result - I expect that the exported file should be able to play all of the audio on other devices.

Actual result - Audio from 2 raw footage files does not export properly, causing some players (Dropbox/DVD player with USB stick) to have silience where the audio should be. The export sounds fine on my computer.

Adobe premiere pro version 25.3.0

Operating system - Mac (Sequoia 15.6)

Video format - Raw footage - MPEG-4 1920x1080 (1.0), 25fps, Rec 709, Progressive (From a canon EOS R) Audio is recorded on the camera footage.

Export footage from Adobe - Video Format H.264, 1920x1080, (1.0), 25fps, Progressive, Rec 709, 100 (63% HLG, 51% PQ), Hardware Encoding, VBR, 1 pass, Target 15.90.    Audio is ACC, 320kbps, 48KHz, Stereo

Summary - So only 2 raw files are missing audio after being exported when played on certain media players.

I've had this issue a few times, I ended up sending the faulty files to Audition, makeing a Wav file and re-importing back to Premiere.