How-to guide
How to extract audio from a screen recording
Screen recordings are the weirdest video-to-audio source: short, long, full-screen, window-only, sometimes with system audio and sometimes without. VideoSplit handles every common screen recording format because they all end up as MP4, MOV, MKV or WEBM under the hood.
If your screen recording has no sound at all, it is almost always because the capture app did not ask for microphone or system audio permission — VideoSplit cannot retrieve audio that was never recorded. Fix the permission and re-capture.
Step-by-step
- Identify your recording's container. macOS screen recordings are MOV. Windows Game Bar is MP4. OBS is usually MKV or MP4. ShareX is your choice. All four work.
- Open VideoSplit.io. Any browser.
- Drop the recording onto the page. Drag and drop the file. Long screen recordings (over an hour) may take a moment to load into memory.
- Pick WAV or MP3. WAV is best if you plan to edit the audio into a video tutorial. MP3 is better for quick demo archives.
- Download the audio. Saves with the recording's original filename.
Tips for better results
- On macOS, Quicktime's built-in screen recording picks up microphone audio but not system audio — if you needed system sound, use BlackHole or similar first.
- OBS recordings with multiple audio sources are mixed into a single track by default; to keep them separate, enable Advanced Audio Properties → Record separately.
- Very long screen recordings (8+ hours) may exceed browser memory on 4 GB laptops; split into chunks first.
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