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Hi, I am using Coconut through the WP plugin to encode my videos for streaming following the instructions here: https://foliovision.com/player/video-security/encoding/encrypt-encode-videos-wordpress
I have noticed that on many of the videos, the audio is out of synch with the video on the resulting stream. Here is an example:
https://ballstrikingblueprint.com/members/vimeo-bunker-test/
I have triple-checked the source file and am certain the audio is synched up properly there.
But the audio is out of synch in every browser, and whether I play the videos individually or as part of a playlist.
The source files are in video format: H.264 and audio format: AAC
Any idea why this is happening?
Thanks in advance,
Aaron
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Hello Aaron,
We did not run into this issue, as a first step I’m asking Coconut support about if they ever had any issues like that.
Thanks,
Martin
Hi Martin, I may have figured out the issue. My source mp4 files are fairly long and I wanted to break them into smaller videos to put them into a playlist. To do this, I first trimmed the original source video into shorter clips using the QuickTime player “trim” feature. It was these trimmed video clips that were producing the audio out of synch. When I instead encoded the full, original mp4, the audio came out fine. Not sure if that “trim” feature breaks something about the mp4 container, but it seems to be working fine with the full original source files.
I have a bunch more to encode so I’ll keep an eye on it, but seems if I want shorter clips I might have to export them individually from adobe premiere to make sure their codec is intact.
Hello Aaron,
Thank you for posting about the issue with QuickTime player trim feature. It proves that when dealing with issues like this you have to check each encoding step.
Thanks,
Martin
