Why is my .mov audio out of sync when streaming from Dropbox?

I am having the same problem. All videos uploaded to Dropbox lose sync. 

• Is the sound not in sync with the video or vice versa?
• If you’re previewing it from the website, have you tried playing it from another browser or an incognito window?
• Could you also try downloading the video locally on your device and see how it plays from a third party app?

Hello-This is GMo1 (I started this post) here's the details of my issue:

I make a Quicktime video in pro tools. The Quicktime plays back perfectly in sync from desktop in various players.

I upload Quicktime to dropbox and email link to Quicktime.When playing Quicktime from link (Streaming from Dropbox) Quicktime video is very out of sync with audio!

This has been confirmed across multiple computers,phones,etc.

If Quicktime is downloaded from Dropbox to desktop,it plays in sync once again.

The workflow of the company requires the streaming from Dropbox to work in sync.

In the past, I've sucessfully uploaded literally hundereds of Quicktime videos to Dropbox and had links play back perfectly. Nothings changed on my end. Would really love to get this figured out please.

BTW- I've tried converting Quicktime to many different video types and sizes.No improvment.

        Your help most appriciated!

          Thank you!

I am facing a strange problem. I upload the video with audio in sync. When streaming it at Dropbox, it plays out of sync and if I download the file from there it still out of sync!

You say that dropbox doesnt alter the files in such a way as to cause this problem. But i too am having the same problem. I dont think all of us could be having the same issue independently wihtout there being an issue with dropbox's streaming of uploaded quicktime vids. I download the file and the audio is synched with the video the way it should be. Its like watching the old Godzilla movies. Mouths move and the sound comes later. Very frustrating.

How about a fix?

Hey there marcusmcgill, 

In order to have a closer look into this, due to account-specific info that'd be necessary to investigate, we'd have to move this discussion to email. 

As such, I was able to locate your ticket and can see that a member of my team has reviewed and replied to you. I've also made them aware of your comments, so when you have the chance, please check your inbox for their latest message. 

Thanks in advance!

I have the same exact issue.

My guess had been that allot of the ProTools movies I upload have empty space at the top before picture (i.e. two seconds blank before picture).

The way DropBox is encoding the files for preview must somehow be trying to sync first audio with first picture, hence the sync issue.

This is just a guess, by the way.

It happens in Safari and Chrome. I have not tried any other browsers.

My clients are bewildered that my screeners are all out of sync.

Fortunately one of them mentioned it to me or I would not have even known! This has evidently been a problem for quite some time, I just never preview my own stuff from DropBox and nobody bothered to tell me.

I've resorted to zipping every file I put up so that they HAVE to download it and not just screen it in the browser.

This really is terrible and needs to be fixed.