What reasons are there for a video not play the Voice over part on some Macs and some PCs?
On some PC laptops and on some Macs, you cannot hear the voice over on a video prepared for us by a videographer. We cannot fathom why? Can anyone fathom?
Company has a beautiful video about girls in Burkina Faso made by a professional video editor. We have a DVD of it. One person here complained that she couldn't hear the voice over when playing it on her PC laptop (Win 7). I was able to. But on my Macintosh (older but has lion) I could not either.
If she puts headphones on, she can hear the VO. If I attach speakers to my Mac, I can hear the VO.
I'd chalk it up to some bizarre speaker/sound card configuration that just happens to be my Mac and her PC, both of which have been around the block a few times.
At least one other person in the company had the same issue on her pc laptop, and my wife had the same problem as I do on her laptop, as does one other Mac here.
We tried various codecs (recommended by the videographer) and also playing it through VLC. Nothing. I converted just the audio part to .wav - same problem. Video maker said, and I've verified that the audio is AAC, stereo, 48khz, 192kbps.
Left and right channels look to me like they have the same waveform, and I can hear the VO from both sides through headphones. Interestingly, he has the videos on Vimeo - and all who have a problem with the DVD have the same problem listening through Vimeo. Codec wouldn't matter - it is all .f4v streaming from their server, so it has to be something (or two things mac and PC) with our built-in speakers - I am figuring - but what? What?
Here is the link for the video.
Other videos by him have no problem. He has been really good in trying to figure this out, but we are both bereft of ideas. Again, if it weren't for other people having the same problem, I'd say forget it.
Two more things,
in VLC, when I select the audio channel, if I select left or right, I can hear the VO fine.
Just for fun I played this in the HTML5 beta on Vimeo - made no difference.