Audio for MP4 video not working on confluence page

[Jelle Schroer]

I have an video file (.mp4) that is working on a local player with video and audio.

But when i upload this video to a confluence page then only the video is working and there is no audio with the video.

I would like to know what audio codec's the html5 video player is supproting so i can edit my video to the correct audio codec to have it working with video and audio on the page.

[Florian Schüller]

Today i was able to reproduce this issue - the problem is the codec of the mp4 file.

Once i uploaded a file (multimedia makro) in confluence with the audio codec A52 Audio (aka AC3).

While using this format the sound was not working in confluence.

Afterwards i did the same with the audio codec MPEG AAC Audio (mp4a) and everything is working fine! 

best regards,

florian

[Michaela Galkin]

Today I have the same problem. I have some mp4 Videos which are not playing the sound after uploading them to a Confluence page.

Playing locally is with sound.

Some other mp4 Videos are played with sound, that is why this issue is strange....

[Muhammed Fazi]

i am facing the same issue, i can watch the video but there is no audio. can anyone please help me here.