You record your screen on a Mac, play it back, and there’s no audio.
The microphone was on. Your voice is there. But the video you were playing, the notification chime, the app’s sound effects — none of it made it in.
That’s not a bug. macOS screen recording is designed not to capture system audio.
What the built-in tool does
⌘ + Shift + 5 brings up the capture panel.
| Button | Action |
|---|---|
| Record Entire Screen | Captures the full display |
| Record Selected Portion | Captures a chosen region |
Under Options:
- Save to — somewhere other than the desktop
- Timer — 5 or 10 second delay
- Microphone — built-in or external
- Show Floating Thumbnail
- Show Mouse Clicks — a dark circle appears on click
That last one is under-known. For any how-to recording, turning it on is the single cheapest improvement available.
QuickTime Player records the same way and can trim the start and end afterward. For short recordings with the dead ends cut off, the built-in tools are complete.
Why system audio isn’t captured
macOS provides no standard route for one app to intercept and record the audio another app is producing.
That’s a security and privacy design choice: microphone input and internal audio output are deliberately separated. Only microphone audio can be folded into a screen recording.
So capturing sound with the built-in recorder means:
- Playing it through speakers and picking it up with the microphone
Which degrades quality, includes room noise, and captures nothing at all if you’re wearing headphones.
The standard workaround is a virtual audio device (BlackHole and similar) looping system output back as an input. That means installing an extra driver and switching your audio output device — and forgetting to switch it produces another silent video.
MacSide AI’s recording studio captures system audio directly, with no device juggling before each take, and a system volume control you can adjust after recording.
Four more things it can’t do
Audio aside, building an instructional video surfaces other gaps.
1. Nothing tells the viewer where to look
Record the full display and the exported video is unreadable, especially on a phone. There’s no zoom to push in on what you’re explaining.
Doing it manually means key-framing in Final Cut or Resolve — an hour of work for a three-minute explainer.
2. Keystrokes are invisible
Whether you pressed ⌘V or ⌘C leaves no trace. In a shortcut tutorial, the one thing that matters is the one thing not on screen.
Your options are narrating it or hand-placing caption overlays afterward.
3. The cursor is too small to follow
Show Mouse Clicks gives you a dark circle, but there’s no way to enlarge the pointer or smooth its motion. Real hand movement jitters, and viewers tire of tracking it.
4. You can’t compress just the slow parts
Every recording contains loading spinners and hesitation. QuickTime trims the ends — it can’t run one middle section at 2x and leave the rest alone.
Side by side
| macOS built-in | MacSide AI | |
|---|---|---|
| Full screen / region recording | Yes | Yes |
| Microphone audio | Yes | Yes |
| System audio | No (needs a driver) | Yes |
| Click indicator | Yes (dark circle) | Yes |
| Auto-zoom on clicks | — | Yes |
| On-screen keystroke display | — | Yes |
| Cursor scaling and smoothing | — | Yes |
| Partial speed changes | — | Yes (0.5x–3x) |
| Trim start and end | Yes (QuickTime) | Yes |
| Background, corner radius, shadow | — | Yes |
The auto-zoom and keystroke track are shown against the real interface in the recording studio article.
When the built-in tool is enough
To be clear, it’s enough more often than not:
- Recording short reproduction steps for a developer
- A thirty-second operation with spoken narration
- Keeping a record of a meeting screen
- Silent verification that something works
⌘⇧5 handles all of that. Turn on Show Mouse Clicks, trim in QuickTime if needed, and stop there.
The gap opens when you’re making something for other people to learn from — documentation, onboarding, customer-facing walkthroughs. That’s where zoom, keystrokes, and audio all become necessary at once.
Frequently asked questions
Any built-in way to record internal audio?
No. A virtual audio device like BlackHole loops output back as input, but requires installation and audio routing changes.
Can I just play it through the speakers?
You can, but quality drops, room noise gets in, and headphones capture nothing.
Where is Show Mouse Clicks?
⌘⇧5 → Options.
Can I change the save location?
Yes, in the same Options menu.
Can QuickTime edit the recording?
It trims the start and end. It can’t speed up a middle section or add zoom.
Know the reason before choosing a tool
“Mac screen recording has no sound” is a specification, not a misconfiguration. Plenty of people have re-recorded several times before learning that.
And audio isn’t the only gap. The moment you’re making something for someone else to follow, you need zoom, keystroke display, and partial speed all at once.
Start by opening ⌘⇧5 and enabling Show Mouse Clicks. If that’s sufficient, you’re done. Add tools only after you’ve found the specific thing that isn’t.