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Forum Discussion
criehl
7 years agoNew member | Level 2
Why is my video audio out of sync for video files uploaded to Dropbox?
I have .mov file I created in which the audio sync is correct on my computer (Mac). But when I upload the .mov file to my DropBox account, the audio is out of sync in the copy on DropBox.
How do I ...
- 7 years ago
I figured it out. The file on DropBox is fine: when I DOWNLOAD it, there are no sync issues. So it looks as though the problem is opening it from DropBox. The playback Codecs playing from the Web site mess up the sync. But as long as the file is fine, my co-collaborators will be able to download it.
Thanks for taking the time to reply.
MikeyL
7 years agoNew member | Level 2
I'm having the same sync issues . The file is fine , it's just the Dropbox playback .
Rich
Super User II
7 years agoWhen viewing files on the Dropbox website you're not viewing the original. You're viewing a transcoded preview of the original file. The conversion process is rarely perfect and can often times create undesired results, especially in videos. The preview is not intended to be used to stream the original file. It's just a preview of the original.
To view the file in its original form, you need to download it and play it locally. If it's out of sync when you play it on your computer, then it's a problem with the file or video player that you're using.
- MikeyL7 years agoNew member | Level 2
Thanks Rich .
It would be great if such a disclaimer appeared when previewing . At least until the issue is fixed .
I use Dropbox (pro) to preview my film work for clients. It just doesn't look very pro when it's out of sync!
Making people download files isn't ideal , especially when the preview function on youtube pruvate clips works fine .
As for the ZIP download issues on large files. Well , that's a whole other story
- tedddybass7 years agoExplorer | Level 4
Im having the same issue as well Lusil. I typically use Chrome, but have tried in Safari, Incognito mode, on my cell phone (Pixel 3), Mac and Windows Surface, and the issue persists on all platforms.
A member mentioned earlier, the audio not syncing properly only appears in the preview version - When downloaded to a device, the issue seems to resolve itself.
- Lusil7 years ago
Dropbox Staff
Hey tedddybass,
Thanks for trying out some initial troubleshooting - definitely helps in giving us a better understanding of the behavior.
I've sent you a ticket to the email associated with your Community profile to have a better look into this matter with you.
Looking forward to hearing back from you!
- ArtyomK6 years agoNew member | Level 2
Hello Lusil,
Is there any development around the issue?
Im still experiansing the issue.
- Jane6 years ago
Dropbox Staff
Hey ArtyomK, it’s Jane this time; thanks for the nudge!Would it be okay if I reached out to you on the email address connected to your Community profile to examine a specific video preview & see if I can re-create the behavior on my side? If you confirm, I’ll create a ticket on our system for you & continue our discussion there.Keep me posted on how you'd wish to proceed in your next message. Thanks again! - ArtyomK6 years agoNew member | Level 2
Hello Jane, Sure you can reach me on the email connected to my profile!
- Walter6 years ago
Dropbox Community Moderator
Hey ArtyomK; how are you today?
As my colleague Jane is currently out of office, I just went ahead and sent you an email so we can dig deeper into the issue you seem to be having.
Whenever you get the chance, please take a look at your inbox for my message and get back to me there so we can pick this up from there.
Thanks a bunch!
- melguerison6 years agoNew member | Level 2
Hi, Any updates on this? I also use dropbox pro to share scoring drafts with filmmakers and ad agencies and it is almost 100% consistently out of alignment audio/video wise in preview mode. Please address this!! Enough people are dealing with this and we are paying you every month to use a professional service!
[personal information removed for security purposes and to align with our Community's Guidelines]
- Walter6 years ago
Dropbox Community Moderator
Thanks for reporting this melguerison!
Can you post a (sample as a test) shared link to a (also sample, test) problematic file so I can have a look on my end?
Could you also let me know if you've been through what has already been suggested in this thread?
On a side note, I removed your email address from your post for security reasons. If you like to look into this with our support team and account specific info, please log a ticket by clicking on the 'Contact support' button on the upper right corner on any page you navigate within our Community.
In either case, please keep me posted!
- tedddybass6 years agoExplorer | Level 4
Thanks for looking into this. Here is an example. [removed by Moderators for security purposes]
It occurs with just about every HD video. I assume it's something to do with the compression creating a noticeable difference in the audio and video - Walter6 years ago
Dropbox Community Moderator
Thanks for the sample shared link tedddybass!
I think I know where you got your nickname in our Community now - great fishing skills (if that was you in the video after all) by the way!
Also, I think you're onto something here as you mentioned that it happens with HD videos in general and only upon previewing those files on our website.
At this point, we'll need to investigate further with all of our tools at our disposal so please let me know if you'd like me to reach out via the email address you've connected to your Community's profile.
Thanks a bunch!
- tedddybass6 years agoExplorer | Level 4Ha! Thanks Walter! That would be great. Happy to help in anyway I can!
- Walter6 years ago
Dropbox Community Moderator
Thanks for helping look into this tedddybass!
I just sent you a brief message so please take a look at your email's inbox and we'll take it from there.
Talk soon :envelope:
PS: By the way, I'm removing the shared link to the video in question from your post to prevent bandwidth issues. Thanks for sharing in any case though :grinning:
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