YouTube videos not playing audio for some viewers

[Ross Tokach]

You are sure it is the microphone?

“Oop, I think my render is done!”

[Micah Mcdowell]

Well, one possibility is that they just don’t know what they’re doing and have something wrong on their end.

Another distant possibility could be something similar to an issue I ran into years ago with out-of-phase audio. We had a certain wireless lav mic hooked to a Canon XL1. Somehow, it would record to both channels of audio on tape in opposite phase. When editing and monitoring in stereo in Premiere, everything sounded fine. However, if you played it back on a mono TV, the audio would disappear because the channels combined would cancel each other out. After we found the problem, I fixed it by applying the Fill Left or Fill Right audio effect to the mic’s audio track, which made both channels in the correct phase.

That’s worth checking into, but it’s a long shot. It would explain why there’s only an issue with a certain mic though.

[Jordan Montreuil]

That is probably it. Some who reported the problem said they were running the audio through a mono setup. You say using the Fill Right or Fill Left effect. How do you decide which to use?

[Micah Mcdowell]

Fill Left duplicates the left audio channel for both left and right, and Fill Right obviously duplicates the right channel. In your case, I think that either would work. Both of your channels are exactly the same, they’re just out of phase. It wouldn’t matter which one you duplicate.

I also often use it to center up the audio when I plugged a mic into a single channel on the camera. If I can see my audio levels on what Premiere interprets as the left channel, I just drop Fill Left on there and it’s the fastest way to fix it without needing to get into the Audio Mixer panel.