--- title: "CapCut Audio Out of Sync? How to Fix It | sync.video" description: "Fix CapCut audio out of sync: separate the audio and slide it in the timeline, check the export settings, or correct the exported file without re-editing it." url: https://sync.video/sync-audio-capcut --- 1. [Home](https://sync.video/) 2. [Fix audio sync](https://sync.video/fix-audio-sync) 3. CapCut audio sync Free · runs in your browser # How to fix audio out of sync in CapCut Slide the sound in CapCut’s timeline, rule out the causes that put an export out of step, or fix the finished file without opening the project again. To fix audio out of sync in CapCut, separate the sound from the clip so it sits on its own track (the menu item is called **Extract audio** or **Separate audio** depending on your version), then drag that audio a few frames left or right until speech matches the lips, zooming in on the timeline for fine moves. If the project plays in sync but the exported video doesn’t, the cause is in the source footage or the export, and it is usually quicker to fix the finished file. For a finished file, open the export in the tool above, press **Detect automatically** or line up a clap, nudge the sound in 10 ms or 1 ms steps and press **Export video**. The picture is copied as CapCut made it, so there is no second round of compression, and the corrected file is ready to post. A fixed offset: every sound arrives the same amount late. Moving the whole sound track earlier by that amount lines every clap up with its frame again. ## How to sync audio in CapCut, or after export 1. ### Separate the audio in CapCut Select the clip on the timeline and choose **Extract audio** or **Separate audio** (right-click on a computer, the toolbar on a phone). The sound appears as its own track under the picture. 2. ### Slide it into place Zoom into the timeline, find a clear moment such as a clap or a hard consonant, and drag the audio track until its waveform peak sits under the right frame. Play it back to check. 3. ### Or fix the exported file If the export is out of sync, open it above, press **Detect automatically** (A) or **Jump to the clap** (C) and **This frame is the clap** (K), fine-tune with **Earlier** and **Later**, then **Export video**. ## Why CapCut projects go out of sync ### Footage with a variable frame rate Phone and screen recordings often change their frame rate as they record. An editor that treats every frame as the same length can let the sound drift against the picture over a long clip. If the gap grows through the clip, it is drift rather than an offset; see [fix audio drift](https://sync.video/fix-audio-drift). ### Sound recorded separately A voice-over or a separate microphone recording starts at a different moment from the camera, so it needs lining up once. Two recordings of the same moment can be lined up automatically by their sound with [Sync separate recordings](https://sync.video/sync-external-audio), and then imported into CapCut already in step. ### Speed changes and edits Changing a clip’s speed or trimming the picture but not its separated audio leaves the two different lengths. Keep speed changes on clips whose sound is still attached, or adjust both tracks together. ## Tips for precise sync in an editor * Clap once at the start of every take: a single spike in the waveform and a single frame on the picture. * Zoom the timeline right in before nudging; at normal zoom one drag can move a whole second. * Judge by a close-up of a face saying a “p” or a “b”, not by a wide shot. * At 30 frames per second one frame is about 33 ms. If a frame-by-frame nudge is too coarse, finish the job in the tool above in 1 ms steps. ## Fixing the exported video instead When the project is finished and only the exported file is off, re-opening and re-exporting the project means another round of compression and another wait. Correcting the file avoids both: 1. Drop the export onto **Drop a video to fix its sound**. 2. Press **Detect automatically**, or use the clap tools if you clapped on camera. 3. Check it at ¼ speed with **Replay around here**, and adjust with **Earlier** or **Later**. 4. Press **Export video**: the picture is copied, and the sound too unless drift needs fixing. The same applies to files from other editors and players; if you found the delay by ear in a player, the [VLC guide](https://sync.video/vlc-audio-delay) shows how to carry that number over. ## Questions about CapCut audio sync ### Why is my CapCut video out of sync after export? The source footage may have a variable frame rate, the audio may have been trimmed or sped up separately, or the separated audio was nudged by mistake. Check the project; if it plays in sync, fix the exported file directly. ### How do I move audio separately from the video in CapCut? Select the clip and use **Extract audio** or **Separate audio** (the name depends on the version). The sound then sits on its own track and can be dragged on its own. ### Can I fix the sync without re-exporting from CapCut? Yes. Open the exported file in the tool above, set the offset and export: the picture is copied, so there is no extra compression. ### How precise can I get in CapCut? About one frame when you zoom in. For finer steps, correct the exported file here, where the sound moves in 1 ms steps. ### Does this work on a phone? Yes. The tool runs in a recent Safari or Chrome, so you can fix a CapCut export without moving it to a computer. ## More in fix audio sync * [ Fix audio and video out of sync Work out whether the file or the playback is at fault, then fix the delay or measure it. ](https://sync.video/fix-audio-sync) * [ Fix audio that slowly drifts Two sync points stretch the sound so it stays in step from start to end. ](https://sync.video/fix-audio-drift) * [ Fix audio delay in VLC The J and K keys, Track Synchronization and how to save the delay into the file. ](https://sync.video/vlc-audio-delay) * [ Sync a separate mic or recorder to a video Replace a camera’s scratch sound with a lav, recorder or phone recording, lined up automatically. ](https://sync.video/sync-external-audio) * [ Sync audio and video online Drop one video to fix its delay, or several files to line them up by their sound. ](https://sync.video/)