Forum Discussion

Copper Contributor

Apr 10, 2018

Stream video upload does not play sound, only video

Hello, I have an MP4 video that was created using TechSmith Capture on iPhone that has video and audio. The video is perfectly fine on YouTube, however when I upload to Microsoft Stream it is missin...

Erin Chalmers

Copper Contributor

Apr 10, 2018

I am having this same issue. Any luck with this?

Marc Capistrano
Copper Contributor
Apr 11, 2018
On mobile, yes, it's really dumb. You have to click Audio and Subtitles, then Audio codec should be "aac_und_2_128_1_1"

Originally it was "aac_und_2_127_1_2"

I have not figured out how to get it working on Desktop app or desktop web.
- Marc Mroz
  Microsoft
  Apr 13, 2018
  Marc Capistrano and Erin Chalmers - Would you be willing to send me a private message and send me the original video file (or a sample that has the same issue)? We will have an easier time trying to figure out the issue if you give us a sample video file with the issue.
  
  Sorry you are running into problems with these files.
  - AM5839
    Copper Contributor
    May 05, 2020
    Marc Mroz
    I am experiencing the same issue. After uploading in MS Stream, my mp4 file does not play any sound.
    Is this been fixed now?
    Do I need to change audio codec using a software like Stellar?