Video file has no audio after downloading from the Dropbox app

Thank you -- that's interesting.  No.  The volume is decent (again, not great like on the phone) on the download.  Meanwhile I've sent it to a friend who might be able to enhance the sound.  
   Here's a new issue.  He said that when he clicked on the link he wasn't able to play it directly but had to download it to play it (so in the case of this video that might be plus):  is this the recipient's experience upon receiving an emailed DropBox link? -- do they always have to download it to play it?  I thought I was offering them the easy experience of simply clicking on the link and then clicking on a Start arrow...    Perhaps relatedly, is there a way to send them just a clean-looking final version, without the panels of editting tools, etc around it?

Hey again, Peter. Your friend should be able to preview the video without downloading it first. 

Can you clarify the size of the video on Dropbox? 

Also, if you can send me a screenshot of what he sees on his end, that’d be great. You can attach it here with this button: 

As for the editing tools, it's not possible to remove those I'm afraid. However, the recipient should have an option to preview the video in full-screen, if they don't want to see them.

I am facing the same problem as of currently, a few weeks ago, I was able to download videos from the app with audio with no issue, but now all of a sudden, the sound is completely taken away from the video when I watch it in my camera roll, and even effects the video in the dropbox app as well, and apparently this is a common problem for most apps like dropbox... is there a STRAIGHT FORWARD way to fix this problem? I do not know if this is a mobile or computer problem, but I just want to know if there is a direct way to fix this.

I am facing this exact same problem

Does anyone know the actual answer to solve this problem? like at all...

HI FRANK 8, do the videos have audio when you first upload them to the Dropbox site or via the mobile app?

Are you able to preview them on the Dropbox site itself with audio, instead of the mobile app?

Same issue.  When I play the video in Dropbox, it has audio.  When I download it to my PC, it has video but not audio.  

Hey Geno28​, let's jump right into this! 

What file type are we talking about? I'm guessing an .mp4, correct?

Also, have you by any chance tried downloading the video using a different browser? Also, is it a file that you have saved in your Dropbox account, or are you accessing it through a shared link?

Let me know more, and we'll take it from there!