Why does my MOV file play video but no sound in QuickTime?

This is often a codec issue. QuickTime may not support the audio codec used in the file. Try playing the file in VLC, which supports more codecs. If VLC plays the sound, the file is fine and you need a different player.

Can I recover audio from a MOV file that has no audio stream listed by ffprobe?

No. If ffprobe shows no audio stream, the file has no audio track to recover. No repair tool can add sound that was never recorded. You need the original source file.

What does it mean if ffprobe shows an audio stream but the file is silent?

It means the audio data exists but something is preventing playback. The cause could be an unsupported codec, a muted track, or a damaged audio index. Try switching audio tracks in VLC or repairing the file.

My iPhone video has no sound on PC but plays fine on the phone. What should I do?

This is typically a codec or index issue. The MOV file may use a codec not supported by Windows players, or the audio index was damaged during transfer. Try playing in VLC, or use a repair service to rebuild the file structure.

MOV Plays but Has No Sound: How to Find the Cause

A MOV file that plays video with no sound has what is commonly called mov no sound. The cause falls into one of four categories. A missing audio track. An unsupported audio codec. A muted or deselected track. Or a damaged file with a broken audio index. Each demands a different fix, so identify yours before you act.

Check for a Missing Audio Track

Run ffprobe to Spot a Missing Track

The simplest cause of mov video no audio is that the file has no audio track at all. The original recording may not have captured sound, or the track was stripped during editing or conversion. Run ffprobe file.mov. The command lists every stream in the file. If no audio stream appears, there is nothing to recover. No repair tool can add sound that was never recorded. Track down the original source file that does contain audio.

Identify an Unsupported Audio Codec

Test in VLC First

An audio track can exist and still produce silence because your player does not support the codec. MOV files commonly use AAC or uncompressed PCM. If the file uses a professional or obscure codec, your default media player may decode the video and drop the audio entirely. This is a frequent quicktime no sound scenario. Open the file in VLC, which handles a vast codec library. If VLC plays audio, the problem is your player, not the file. Switch players or convert the audio track to a supported codec.

Check for a Muted or Disabled Audio Track

Verify Volume and Track Selection

Audio can be present but not selected. A file may carry multiple audio tracks, or the player may be muted. Check these:

Player volume: Confirm system volume and player volume are not zero or muted.
Audio track selection: In VLC, open Audio > Audio Track. Some professional MOVs carry several mono tracks. Some players play only the first. Switch to another track if listed.
File metadata: Corrupted metadata can make the player treat an intact audio track as disabled.

If switching tracks restores sound, the file is fine. The issue is purely a playback setting.

Detect a Damaged File with Missing Audio Index

Interrupted Recordings Break the Index

An interrupted recording can lose the audio index while the video survives. The audio data remains in the file, but the index that tells players where to find it is missing or corrupted. This is a common cause of iphone video no sound on pc when a recording was cut short. A standard player shows video and no audio. Try the file in multiple players. If none produce sound, a repair is warranted. A tool that reconstructs the file structure can often restore playback by rebuilding the index from the audio data still present.

Distinguish Between Missing and Damaged Audio

Use ffprobe to Decide Your Next Step

Run ffprobe file.mov. If an audio stream is listed, the track exists. The problem is codec-related, muted, or a damaged index. If no audio stream appears, the track is truly missing. For mov audio missing cases with no listed stream, no repair can recreate the sound. For mov audio track not playing despite a listed stream, work through these steps:

Test in VLC and switch audio tracks.
Confirm system audio output works with other files.
If the stream is listed but still silent, the index is likely damaged. A rebuild may recover the audio.

When to Attempt a Repair

Rebuild the File Structure

You have confirmed an audio track exists via ffprobe. The codec is supported. No player produces sound. The file is damaged. A repair tool that rebuilds the file structure can recover the audio. The Mov.repair service processes your file and keeps whatever audio stream data is present. This works for mov audio missing scenarios where the data is there but the index is broken. If the audio track is truly absent, no repair will help. Locate the original recording.