My Instagram or Facebook video used to have sound. Now it is muted or says the audio is unavailable. What should I do?

Save the post link, the exact notice and date, the track’s name and source, and any licence or permission. Keep your original video or project outside the app if you still have it. Downloading the post later may not recover the missing sound.

1. Check playback before editing. Try the player’s sound control and your device’s media volume and audio output, then another video and your original file. If possible, compare the same post in the official app and browser without changing its audience. This helps narrow down the problem; it does not establish the cause.
2. Read the post’s notice and any linked decision. Note whether it affects the audio, a segment or the whole video, which track or territory it names, and any deadline. A music-availability notice differs from a copyright claim or removal notice. Check Instagram and Facebook copies separately.
3. In Instagram’s Android/iPhone app, the documented route is the affected Reel → Audio unavailable → Replace audio. Choose permitted music and its segment, then follow the displayed Done confirmations. Before the final confirmation, check any available preview, especially your narration. Do not assume you can repeat or undo the replacement, or that it will preserve the original mix. If Replace audio is missing, continue to the relevant step below.
4. For Facebook, the documented replacement tool is for muted Reels in the mobile app. In your profile’s Reels, look for Needs review, then Options → Replace audio → Continue. If offered, choose the song and segment, check any available preview, including your narration, then confirm Update audio/Update. Follow the labels and warnings shown in your app. This is not a general desktop soundtrack editor; an unavailable-music notice does not establish that you own the song.
5. If the notice identifies a rights claim and offers a review, challenge it only with a basis you can support—for example, permission covering this use or a clear identification error. Follow the instructions in that notice. A copyright removal may have a separate appeal or DMCA counter-notification process; get qualified advice if you are unsure about submitting a legal counter-notification.
6. If there is no rights notice and the issue appears technical, save your work, update or restart the app or device, and use the official Report a problem option if it continues. Include the post link, exact message, time, device/app version and checks tried. Keep passwords and login codes out of the report. If a review or replacement option is absent, consult official Help; it may not be able to restore the audio.
7. Check the same published link after any change, including your narration and any separate copy on the other platform. If no suitable repair is available, keep your records and follow the options in the notice before deciding whether to delete anything. A new edit using audio you have permission to use is a separate post; it does not repair the original or cancel a claim. Do not try to evade a restriction by altering the audio, changing location or repeatedly uploading it.