Audio in .mov files stopped playing

Asked by:
HubFans / n/a Points
2014-12-06 2:58 pm EST
Website Troubleshooting
My website's (5) .mov files stopped playing audio for visitors (video continues to play okay).
After I downloaded these 5 .mov files from my File Manager to my computer they all played fine with audio+video, so it seems that the audio data is still in the HTML code.
I haven't made any changes to the site or its coding since 2013. I did not author the site and do not know how to change code.
Thanks for your help.

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16,266 Points
2014-12-08 11:47 am EST

I was able to locate your site and the videos on the account. I can confirm the same behavior where the audio plays after it is downloaded but not when it is in a browser. I have run the same test on my own server using a copy of your videos got the same result. I then went to Apple and got sample mov files and they performed the same way, fine on the computer and no audio in the browser. Note that my computer plays them using the VLC media player.

I then converted a copy of one of your videos to mp4 format and tried. It works with both audio and video. The conclusion we can come to is that it is the QuickTime plugin that the browsers use. We tried a handful of browsers (IE, Safart, Chrome, FireFox, Opera, SeaMonkey) and they all perform the same.

You will want to convert them to another type so that a different plugin will run on the visitor's browsers correctly. I found an open source free video converter named Miro Video Converter to perform my test. This is not an endorsement for the program as I just found it randomly, but you may want to take a look at it if you do not have one.

As to why it began recently, I can only surmise it was some sort of update in the quicktime plugin that causes the audio to no longer be compatible with browser playback capability. I also found several references on the Apple forums about QuickTime plugin audio loss, so it does appear to be browser-plugin related.

Kindest Regards,
Scott M

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