Video Sync: sync show videos to a master and split into songs

Add your files

Drop in a master recording and one or more videos of the same show. The tool syncs the videos to the master by waveform, proposes song boundaries you can adjust by ear, and exports each song. To work with a single clip instead, add one video and a clean recording, and export that video with the clean audio in place.

Video

Tap or drop an MP4 or MOV

Replace clip audio (single clip)

A clean recording to swap into one video

Master Audio (timeline spine)

Tap or drop a WAV, MP3, or M4A

You can drop several videos at once. For video, drag from Finder or an exported file: dragging straight from the macOS Photos app can be slow.

Preview

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External audio synced

A larger screen is better for fine timeline work. This view is for review and small adjustments.

Add files: or drop them anywhere here

Alignment

Auto-align analyzes the audio in your video and matches it against the external audio file to find the best offset. Then you can adjust by ear if needed.

Audio Offset 0.000s

Audio earlierAudio later

Waveforms

The top waveform is the audio from your video. The bottom waveform is the external audio, shifted by the offset. When they line up visually, the audio sources are in sync.

Video audio External audio (offset applied)

Clips

Define which portions of the video to export. Add a clip, set its in and out points, and give it a label. Add more clips for different cuts. Align once, render all.

Add a clip to start.

Select a clip to edit its settings.

Render

Output

0:00.0 total across 0 clips

Add a video to begin. External audio is optional.