CapCut Not Exporting Sound? Here’s How to Fix It (Step-by-Step)

You finished your edit, hit export, and the video plays back completely silent. It’s one of the most common CapCut frustrations, and it almost always has a fixable cause. This guide walks through every reason CapCut drops audio on export, starting with the most likely culprits, so you can find your fix fast and get back to posting.

CapCut Not Exporting Sound? Here’s How to Fix It (Step-by-Step)

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Why CapCut Stops Exporting Sound

Before jumping into fixes, it helps to know what’s actually causing the silence. Most cases fall into one of five categories:

Symptom	Likely Cause
All audio is missing on export	Timeline track muted or volume set to zero
Music plays in editor but not in exported file	Copyright-restricted track stripped on export
Video exports but sounds cut off or distorted	Insufficient device storage during export
Silent export only happens on PC	Export settings missing audio output
Random silent exports after update	App cache corruption or outdated app version

Work through the sections below in order. The fixes are arranged from most common to least common.

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Check Your Timeline Tracks First

The single most common reason CapCut exports without sound is a muted or zeroed-out audio track inside the timeline. This is easy to miss because the editor plays audio fine during preview, but a single muted layer or a volume keyframe dragged to zero will produce silence on export.

Check each of the following:

1. Tap each audio or video clip in the timeline and look for a speaker icon. If it shows a line through it, the track is muted. Tap it to unmute.
2. Check the track volume slider. Select a clip, go to Audio in the bottom toolbar, and confirm the volume slider is above zero. A slider sitting at 0% exports as silence.

3. Look for volume keyframes. If you added keyframes to automate volume, one may be anchored at zero. Tap the clip, select Audio, then Keyframe, and scrub through to find any dips.
4. Check the Original Sound toggle. On mobile, select a video clip and tap Audio. If Original Sound is toggled off, that clip’s native audio will not appear in the export.
5. Check your background music layer separately. Scroll down in the timeline to the background music track and confirm it is not muted independently of your main clips.

How to Unmute a Specific Audio Layer

If you’ve identified a muted audio layer and need to restore it:

1. Tap the audio clip in the timeline to select it.
2. Tap Audio in the bottom editing toolbar.
3. Drag the Volume slider to the right until it reaches your target level (typically 80–100%).
4. If keyframes are enabled, scrub through the entire clip to check that no keyframe drops the volume back to zero.

5. Play back a short section in the editor to confirm audio is audible before exporting.

Note: Clip volume and master volume are separate. Restoring a clip’s volume does not override a muted master channel, so check both.

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Copyright-Restricted Music Is Being Silenced

This is the second most common cause and it’s frequently mistaken for a bug. CapCut licenses certain in-app tracks for use within the editor only. When you export that video to your camera roll or share it to another platform, CapCut’s content protection system may strip the audio entirely, leaving the video silent.

You will not always receive a warning that this has happened.

How to fix it:

1. Switch to CapCut’s Commercial tab. In the audio library, filter tracks by Commercial (sometimes labeled as “No Copyright” on desktop). These are cleared for download and cross-platform use.

2. Import external royalty-free audio. Use music from a royalty-free source outside CapCut, import the file into your project, and replace the restricted track.
3. Use originally recorded audio. If the video relies on voice or ambient sound rather than background music, simply turn off background music altogether and rely on the clip’s original sound.

This is not a setting you can toggle to bypass. If a track is restricted, the only fix is replacing the track itself. No amount of cache clearing or reinstalling will change this.

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Verify Your Export Settings Include Audio

In most cases CapCut’s export settings are fine by default, but a misconfigured export panel can silently strip audio, particularly on the PC version.

On mobile (iOS and Android):

1. Tap the Export button (top right arrow icon).
2. Confirm you see options for Resolution and Frame Rate — these confirm you are in the standard export flow and audio is included by default.
3. There is no separate “include audio” toggle on mobile. If audio is set correctly in the timeline, it will export.

On CapCut PC:

1. Click Export in the top-right corner.
2. In the export dialog, check that Format is set to MP4.
3. Look for an Audio section in the export panel and confirm it is not set to None or disabled.

4. If you see an option labeled Export original audio or similar, make sure it is enabled.

Pro Tip: If you’re on PC and audio keeps dropping, try switching the export format from MP4 to MOV temporarily to test whether the issue is codec-specific. Then switch back to MP4 once the problem is isolated.

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Clear Cache, Update, or Reinstall CapCut

If the timeline looks correct and your audio isn’t copyright-restricted, the issue may be at the app level. Accumulated cache, corrupted temporary files, or an outdated app version can all cause unpredictable export behavior.

Work through these steps in order before jumping to a reinstall:

1. Clear the app cache. Open CapCut, go to Settings (profile icon, then the gear), and tap Clear Cache. Restart the app and attempt the export again.
2. Update CapCut. Open the App Store (iOS) or Google Play Store (Android) and check for a pending update. Codec handling and export behavior are patched regularly; running an older version can cause silent exports that are already fixed upstream.
3. Reinstall as a last resort. If clearing cache and updating do not help, uninstall and reinstall the app. Before doing this, export your project file or note that locally saved drafts may not survive a clean reinstall on all devices. Check CapCut’s cloud backup status first.

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Check Device Storage Before Exporting

Low storage is a quiet culprit. When CapCut runs out of space mid-export, it may write an incomplete file to the camera roll. That file will often play back without audio because the audio codec data was never fully written.

Check your free storage before every export: go to your device Settings, find Storage, and confirm you have at least 1–2 GB free for a standard short-form clip. If storage is low, delete unused files, apps, or old video drafts before trying again.

One-line tip: A general rule for video exports is to have free storage equal to at least twice the expected file size.

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Still No Sound? Try a Test Export

If you’ve worked through every fix above and the export is still silent, run a diagnostic before doing anything else:

1. Create a new CapCut project and add a single 5-second clip with a clearly audible sound (your own voice, or a royalty-free track you know is unprotected).
2. Export that test project without any other edits.
3. Play the exported file. If audio is present, the issue is isolated to your original project, likely a corrupted audio track. In that case, start fresh by removing and re-adding all audio in the problem project. If the test export is also silent, the issue is at the app or device level, and a reinstall or device restart is the next step.

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FAQ

Q: Why does CapCut export video but no sound on iPhone?

The most common cause on iPhone is a muted audio track or a copyright-protected song being stripped on export. Open the timeline, check every audio layer for a muted speaker icon, and verify the volume slider is above zero. If the issue is a licensed track, replace it with audio from CapCut’s Commercial library or an external royalty-free source.

Q: Why does CapCut remove my original sound after export?

If the Original Sound toggle is disabled for a video clip, or if volume keyframes are set to zero anywhere in the clip, CapCut exports a silent track. Select each clip in the timeline, tap Audio, re-enable Original Sound, and check the volume slider to restore it. Scrub through keyframes to catch any volume dips.

Q: Does CapCut mute copyrighted music automatically?

Yes, in some cases. Certain in-app licensed tracks are available for editing but are stripped when you export or share the video outside the app. This is not a glitch. To avoid it, use tracks from CapCut’s Commercial tab or bring in your own royalty-free audio, which CapCut will export without any audio removal.

Q: CapCut exported fine before, why is sound missing now?

A recent app update may have changed default export behavior, or accumulated cache is interfering with the audio rendering process. Start by clearing the cache in CapCut’s Settings, then update to the latest app version through your device’s app store. Re-export after each step to identify which change resolved it.

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Next Step

Work through the fixes in this order: check timeline tracks first, rule out copyright restrictions on your music, confirm export settings on PC if applicable, then clear cache or reinstall as a final escalation. That sequence resolves the vast majority of silent export issues.

Once your export is working, the quality ceiling shifts entirely to the audio you’re capturing on camera. For creators who record on-location or to-camera, a compact wireless mic like the Hollyland LARK M2 (9 g, up to 40-hour battery) ensures clean audio reaches CapCut before any export settings come into play. If the issue persists after all the steps above, revisit the FAQ or drop a comment describing exactly where audio drops.