Screen Recording Has No Sound? Here's How to Fix It

Short version: A silent screen recording almost always means the recorder captured the wrong audio source. A recorder can grab your system audio (what plays through your speakers) or your microphone — and if neither was selected, you get video with no sound. Pick the right source and the sound comes back.

You finished the recording, hit play, and… nothing. No system audio, no voice, or both missing. It’s one of the most common screen-recording problems, and it’s almost always a settings issue, not a broken file. Here’s the fix, by device.

First, know which sound you’re missing

There are two separate audio sources, and “no sound” usually means one wasn’t captured:

• System audio — the sound your computer plays: a video, a call, an app, an alert.
• Microphone — your voice, narrating over the top.

Figure out which one is missing and the fix gets obvious fast.

Fix it on Windows

1. Open your recorder’s audio settings before recording.
2. Make sure system audio (sometimes called loopback or Stereo Mix) is enabled if you’re capturing on-screen sound.
3. Enable your microphone if you’re narrating — and pick the correct mic if you have more than one.
4. Do a 5-second test recording and play it back before the real take.

If your tool only offers one audio source, that’s the limitation — use a recorder that captures system audio and mic together. (KeepCast records your screen, system sound, and mic into one synced MP4 — it’s a local-first Windows app, join the waitlist.)

Fix it on a Mac

macOS is the tricky one: the built-in tools (QuickTime, the Command-Shift-5 toolbar) record your microphone only — never system audio. So a Mac recording of a video call or a YouTube clip comes out with no computer sound.

To capture your Mac’s own audio you need a virtual audio device (like the free BlackHole) that routes system output into your recorder as an input. Set that as the recording source, add your mic, and the sound returns.

Fix it on iPhone

iPhone screen recording captures in-app sound by default, but records your microphone only if you turn it on:

1. Open Control Center.
2. Long-press the Screen Recording button.
3. Tap Microphone so it shows On, then record.

If one particular app still records silently, that app is deliberately blocking capture — nothing you can change.

Fix it on Android

Newer Android versions can record internal audio, but the option is often buried in the recorder’s settings and some apps block it. Open your screen recorder’s settings, set the audio source to Internal audio (or Internal + Mic), and test. If a streaming app stays silent, it’s enforcing copy protection.

The audio is there in the editor but won’t play

A confusing one: you open the recording in an editor and the audio track is clearly there — you can see the waveform — but on playback (or in the exported file) there’s no sound. Because the track exists, the audio was captured, so this isn’t a recording problem. It’s one of these:

• Muted playback. The player, the editor’s monitor, or the app’s output volume is muted or turned down. Check the obvious volume first — including the output-device selector.
• Wrong output device. Your system is sending sound to a device you’re not listening on (a disconnected headset, HDMI monitor, or Bluetooth speaker). Switch the output to your actual speakers.
• The export dropped the audio. If it plays in the editor but the exported file is silent, your export preset was “video only,” or the audio track was muted / at zero volume on the timeline. Re-export with an audio-included format (MP4 with AAC), the track un-muted, and its level up.

The tell is simple: waveform present = captured, so look downstream at playback and export, not at your recording settings.

The one setting that prevents all of this

Whatever device you’re on, the rule is the same: choose your audio source before you record, and do a short test. Ten seconds of testing saves you from re-recording a ten-minute session that turned out silent — the single most common (and most avoidable) screen-recording mistake.