How to Fix OneDrive Video Has No Audio When Played Online
Question details
The user uploaded an MP4 video to OneDrive that plays normally with sound on a local computer, but has no audio when streamed directly through the OneDrive web player.
- Product
- OneDrive
- Device & OS
- not provided
- Scenario
- Streaming an uploaded MP4 video directly within the OneDrive web browser interface.
- Observed behavior
- The video plays smoothly in the browser, but outputs no sound, giving the impression that the file contains only a video track.
Before troubleshooting the OneDrive player, ensure your computer's speakers are unmuted, the volume is turned up, and audio works properly on other websites to rule out a system-wide sound issue.
Download and Test the Video Locally
Verify if the uploaded file is intact and confirm whether the issue stems from the web player's codec support.
The OneDrive online player relies on your web browser's supported media codecs. If your video uses an audio codec not supported by the browser, the player will only render the video track.
Log in to your OneDrive account via your web browser and locate the problematic MP4 video file.
Select the file by clicking the checkbox on its icon, then click the 'Download' button in the top menu bar to save it to your computer.
Open the downloaded file using a desktop media player like VLC Media Player or Windows Media Player to check if the audio plays correctly.
Re-encode the Video with Supported Codecs
Convert the audio track of your video into a widely supported web format so it can be streamed directly in OneDrive.
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Frequently Asked Questions
Why does my MP4 file have sound on my computer but not on OneDrive?
The OneDrive web player relies on your web browser to decode media. If your MP4 file contains a proprietary or unsupported audio codec (like AC3 or DTS), the browser cannot play the audio stream. However, local media players on your computer typically have a wider range of built-in codecs, allowing the audio to play perfectly.
What are the best video and audio codecs for OneDrive online playback?
For maximum compatibility across all web browsers and the OneDrive online player, it is highly recommended to encode your videos using the H.264 video codec and the AAC audio codec inside an MP4 container.
Can using a different web browser fix the OneDrive audio issue?
Sometimes. Different web browsers support different sets of media codecs. If one browser fails to play the audio track, trying an alternative browser like Microsoft Edge, Google Chrome, or Mozilla Firefox might resolve the issue if it supports your specific audio codec.
Will sharing the OneDrive video link allow others to hear the audio?
No. If the issue is caused by web player codec compatibility, anyone viewing the video through a shared web link will experience the same lack of audio. They will also need to download the file locally to hear the sound.
