Screen Recording Has No Sound? 5 Common Causes and How to Fix Them (Mac & Windows)

You hit play, and there was nothing.

The meeting you just recorded — the screen is there, but you can't hear the other person at all. The next call is tomorrow morning, and you need this fixed today.

This guide walks through the five most common reasons screen recordings lose their audio on Mac and Windows. Each cause has a clear symptom, so you can jump straight to the fix that matches yours. By the end, you'll know exactly what's happening — and what to do if you keep getting stuck on the same setting every time.

Table of Contents

1. On Mac, Qureco Skips the Setup and Just Records Audio
2. The 5 Causes at a Glance
3. Cause 1: The Mic Is Toggled "Off" (the most common one)
4. Cause 2: The OS Hasn't Granted Mic or Screen Recording Permission
5. Cause 3: You're Trying to Capture "Internal Audio" (a structural limit)
6. Cause 4: The Wrong Input or Output Device Is Selected
7. Cause 5: The Recording App Itself Has Audio Disabled
8. When Settings Aren't the Answer, Switching Tools Is the Shortcut
9. FAQ
10. Summary: Check Causes 1 → 2 First, and Switch Tools if Internal Audio Stops You

On Mac, Qureco Skips the Setup and Just Records Audio

Quick recommendation up front: if what you actually need is "by tomorrow morning, recording works without me thinking about it," the fastest path on Mac is using a screen recorder that captures internal audio natively. Qureco is a macOS screen recorder that captures both internal audio and microphone input without any virtual audio driver setup. It's designed to work the moment you finish installing it — no Audio MIDI Setup, no driver routing, no rebuilds when you swap headsets.

Why setup never gets in the way

• Internal audio recording works on install — no BlackHole, no Audio MIDI Setup
• Mic and system audio are simple toggles in the UI, each with its own level meter so you can see input is being captured before you hit record
• Free tier with no time limit and no watermark — try it without commitment

What happens after you record

The hardest part of meeting recording often isn't the recording itself — it's writing up the notes afterwards. With Qureco's Pro plan:

• AI generates meeting minutes from your recording
• Templates let you keep the format consistent across every meeting
• Finished minutes sync to Notion in one click

You go from "did I capture this?" to "the notes are already in Notion" in one flow. Pro starts free for the first month, no credit card required.

The 5 Causes at a Glance

"No sound" can mean very different things. Find your symptom first, then jump to the section that applies.

Cause 3 — internal audio — is where most people get stuck. Let's go through them in order.

Cause 1: The Mic Is Toggled "Off" (the most common one)

The most frequent culprit is simple: the recording tool itself has its microphone setting turned off. People who only ever use the keyboard shortcut and never open the options panel run into this all the time.

On Mac (Shift+Command+5)

The built-in macOS screenshot toolbar ships with the mic disabled by default.

1. Press Shift + Command + 5 to open the toolbar
2. Click "Options"
3. Under "Microphone," pick your built-in or external mic

That's it — your mic input will start being recorded. Before you hit record, watch for the level meter to react when you speak. If it doesn't move, you'll get a silent file.

On Windows (Xbox Game Bar)

Windows' built-in Xbox Game Bar has a mildly annoying default: "Audio to record" is set to "Game" only, so audio from your business apps and browser gets filtered out unless you change it.

1. Press Windows + G to open Xbox Game Bar
2. Open "Settings" → "Capturing"
3. Change "Audio to record" to "All"

That single tweak unlocks audio capture for everything that isn't a game.

Quick check

Before pressing record, always glance at the level meter. If you're talking or playing audio and the meter isn't moving, you're about to record silence.

Cause 2: The OS Hasn't Granted Mic or Screen Recording Permission

macOS

• Microphone: enable for your recording app
• Screen Recording: enable for your recording app

After flipping a switch, fully quit and relaunch the app. macOS Sequoia adds a monthly prompt that re-asks for screen recording permission — if you've been clicking "Later," that alone can stop recording from working.

Windows

Cause 3: You're Trying to Capture "Internal Audio" (a structural limit)

This is where most of the lost time lives.

Why Mac's built-in tools can't capture system audio

You have two real options.

Option A: Install a virtual audio driver (BlackHole)

1. Install BlackHole
2. Open macOS' "Audio MIDI Setup"
3. Create a "Multi-Output Device" with both your built-in speakers and BlackHole checked
4. Switch your system audio output to that multi-output device
5. Set the recording app's mic input to BlackHole

Only after all of that does internal audio start being captured. There are also some operational quirks — your system volume becomes fixed during recording, and switching to a different audio device usually means rebuilding the setup. It's less "set it and forget it" and more "stay aware every time you record."

Option B: Use an app that captures internal audio natively

If the virtual-audio dance feels heavier than you want, the alternative is a recording app that handles internal audio out of the box — install, click record, get audio. Mic and system audio toggle as separate switches in the UI.

For people who record often, this option usually wins on time-cost.

On Windows

Windows ships with Stereo Mix, so the bar is lower than on Mac.

1. Right-click the speaker icon in the taskbar → "Sound settings"
2. Go to "Sound Control Panel" → "Recording" tab
3. Right-click in the empty area, enable "Show Disabled Devices"
4. If "Stereo Mix" appears, enable it

If Stereo Mix doesn't show up at all, your sound card driver may not expose it — updating the driver or moving to a dedicated recording app is usually faster than fighting the OS.

Cause 4: The Wrong Input or Output Device Is Selected

"It worked yesterday, today it doesn't" almost always means an audio device got reassigned without you realizing it. This commonly happens after:

• Plugging or unplugging a headset for a meeting
• Pairing Bluetooth earbuds to a different device
• Connecting an external display via HDMI

HDMI is a particularly sneaky one: the audio output silently switches to the display, so your built-in speakers go quiet — and your recording goes wherever Mac decided to send it.

Mac

Windows

Click the volume icon in the taskbar to confirm the output device. For input, head to Sound settings → "Input" and check what's selected.

Cause 5: The Recording App Itself Has Audio Disabled

Even with the OS and recording tool both enabled, individual apps can have their audio track disabled internally.

• QuickTime Player: Choose File → New Screen Recording, then click the small ∨ arrow next to the record button. If "Microphone" is set to "None," switch it to your mic.
• OBS Studio: Make sure "Audio Input Capture" or "Audio Output Capture" is added as a source, and check that the mixer's level meter responds.
• Built-in recording in conferencing apps: Some apps like Zoom have separate options for recording your voice, other participants' voices, and system audio. Check that "Record audio" hasn't been toggled off.

When Settings Aren't the Answer, Switching Tools Is the Shortcut

If you've made it this far, most readers found their fix in Causes 1 and 2 — a permission switch or a forgotten mic toggle. That's the good news.

The harder case is Cause 3, internal audio. Yes, BlackHole is free. But factor in the ongoing costs:

• Building a multi-output device in Audio MIDI Setup
• Switching system audio output before each recording session
• Rebuilding everything when you change headsets

For someone who records once a month, a free workaround is fine. For someone who records weekly or daily, the time you spend re-setting up rarely pays off.

The real goal isn't "is recording technically possible." It's "by tomorrow morning, can I record without thinking about it?" If the configuration keeps eating your time, switching to a tool that captures internal audio out of the box (like Qureco, mentioned at the top of this article) is usually the fastest way to get there.

FAQ

Doesn't BlackHole capture internal audio for free?

Technically yes. But you'll also be running an Audio MIDI multi-output device, switching audio routing for each recording session, and reconfiguring whenever you change audio hardware. That's fine for occasional recording — less so when you're doing it every week.

Does macOS Sequoia let you record internal audio without a virtual driver?

Does Qureco work on Windows?

Qureco is currently macOS only. On Windows, your fastest path is enabling Stereo Mix as described above.

What if my recorded audio cuts out or has noise?

Common causes: another app is holding the same microphone, your sample rate doesn't match between the OS and your recording app, or your CPU is too loaded. Close other conferencing or voice-chat apps before recording, and temporarily disable noise-suppression software to test.

Summary: Check Causes 1 → 2 First, and Switch Tools if Internal Audio Stops You

The five reasons your screen recording lost its audio:

1. The mic is toggled "Off" in the recording tool
2. The OS hasn't granted microphone or screen-recording permission
3. You're trying to capture internal audio (a structural limitation)
4. Input or output device got reassigned
5. The recording app has its audio track disabled

Causes 1 and 2 cover the majority of cases — most readers will fix their next recording from those two sections alone.

Cause 3 is the one worth thinking about. You can keep wrestling with virtual audio drivers, or you can switch to a tool that captures internal audio without the setup. If you record often, the second option usually pays for itself within a month.

May tomorrow's meeting end with the playback you actually expected.

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