Streamlabs Won’t Pick Up Desktop Audio — How to Fix It (Step-by-Step)

If Streamlabs is silent while your game or browser audio plays fine through your speakers or headphones, you are not alone. This is one of the most common setup issues on Windows, and it almost always comes down to a mismatch between your Windows audio settings and what Streamlabs is configured to capture. Work through the fixes below in order and you should have desktop audio showing in your mixer within a few minutes.

Streamlabs Won’t Pick Up Desktop Audio — How to Fix It (Step-by-Step)

Why Streamlabs Fails to Capture Desktop Audio

Streamlabs captures desktop audio using Windows’ WASAPI audio engine, which means it needs to know exactly which playback device to listen to. If the device configured inside Streamlabs does not match the device Windows is actually routing audio through, Streamlabs captures silence. Two independent layers must align: Windows must send audio to the right output device, and Streamlabs must be pointed at that same device.

Why Streamlabs Fails to Capture Desktop Audio

The most common causes include:

• Wrong device in Global Audio Settings — Streamlabs is set to “Default” but the Windows default has changed

• No Audio Output Capture source added to the current scene

• Exclusive Mode enabled in Windows, blocking Streamlabs from accessing the audio stream

• Mixer channel muted or fader at zero without the user realizing it

• Outdated or corrupted audio drivers preventing WASAPI capture from functioning

Fix 1 — Set the Correct Device in Streamlabs Global Audio Settings

This is the most common cause and the first place to check. Streamlabs ships with the Desktop Audio device set to “Default,” which tells it to follow whatever Windows marks as the default playback device. If Windows recently reassigned that default — after a driver update, plugging in a headset, or connecting via HDMI — Streamlabs no longer knows which device to capture.

1. Open Streamlabs and click the gear icon (Settings) in the bottom-left corner.

2. Select Audio from the left-hand menu.

3. Under Desktop Audio Device, open the dropdown currently showing “Default.”

4. Select the actual name of your playback device, for example “Realtek HD Audio”, “NVIDIA High Definition Audio”, or “Speakers (USB Audio Device)”.

5. Click Done to save the change.

   

6. Play audio from your game or browser and watch the Desktop Audio channel in the Streamlabs mixer. The bar should now animate.

Note: If you are unsure which device name to select, right-click the speaker icon in the taskbar, open Sound settings, and check which device is listed as your active output. Use that exact device name in Streamlabs.

Fix 2 — Verify Windows Default Playback Device Matches

Even if Streamlabs is left on “Default,” Windows must be routing game or browser audio through the device Streamlabs is watching. If audio is going to a Bluetooth headset or an HDMI monitor that Streamlabs is not configured to capture, the stream records silence.

1. Right-click the speaker icon in the Windows taskbar.

2. Select Open Sound settings (Windows 10) or Sound settings (Windows 11).

   

3. Click Sound Control Panel to open the classic playback device list.

   

4. On the Playback tab, confirm the device marked Default Device is the same one your game or browser audio is playing through.

5. If the wrong device is set as default, right-click the correct device and select Set as Default Device.

6. Restart Streamlabs and watch the mixer to confirm audio registers.

If your audio is intentionally split across two devices, consider consolidating to one default output or use Fix 3 to target a specific device per scene.

Fix 3 — Add or Reconfigure the Audio Output Capture Source

Global Audio settings handle desktop audio across all scenes automatically, but if that channel is still misconfigured, you can add a dedicated Audio Output Capture source directly to your scene for explicit per-device control.

1. In the Sources panel, click the + (Add Source) button.

2. Select Audio Output Capture from the source list.

   

3. Name the source (for example, “Desktop Audio”) and click Add Source.

   

4. In the properties window, open the Device dropdown.

   

5. Select the specific playback device your game or browser uses. Avoid leaving this on “Default” for the same reason as Fix 1.

6. Click Close and confirm the source’s audio meter moves when desktop audio plays.

   

Important: Do not confuse Audio Output Capture (captures what plays through your speakers or headphones) with Audio Input Capture (captures a microphone). These are two separate source types for entirely different purposes.

Fix 4 — Disable Exclusive Mode in Windows Audio Settings

Exclusive Mode is a Windows feature that lets one application take sole ownership of an audio device. When a game or media player activates it, the application can block WASAPI-based tools like Streamlabs from reading the same audio stream.

1. Right-click the speaker icon in the taskbar and open Sound settings.

   

2. Open the Sound Control Panel and go to the Playback tab.

3. Right-click your default playback device and select Properties.

   

4. Click the Advanced tab.

5. Uncheck “Allow applications to take exclusive control of this device.”

6. Click Apply, then OK, and retest in Streamlabs.

Fix 5 — Unhide or Unmute Desktop Audio in the Streamlabs Mixer

Before troubleshooting further, quickly verify that the Desktop Audio channel has not been silenced at the mixer level. This is easy to miss.

Fix 5 — Unhide or Unmute Desktop Audio in the Streamlabs Mixer

Check these three things:

• Mute icon: In the Streamlabs mixer, look for the speaker icon next to the Desktop Audio channel. If it shows a line through it, click once to unmute.

• Fader level: Confirm the volume fader for Desktop Audio is not dragged to zero. Even at full system volume, a zero mixer fader produces silence in your recording or stream.

• Source visibility: In the Sources panel, check the eye icon next to any Audio Output Capture source. If the source is hidden (eye closed), it will not send audio to the stream.

After confirming all three, play desktop audio and watch the mixer bar.

Fix 6 — Update Audio Drivers or Reinstall Streamlabs (Last Resort)

If none of the above fixes resolved the issue, outdated or corrupted drivers may be preventing WASAPI capture from working at all.

Update your audio drivers:

1. Press Windows + X and open Device Manager.

2. Expand Sound, video and game controllers.

3. Right-click your audio device and select Update driver.

   

4. Choose Search automatically for drivers and follow the on-screen prompts.

   

Reinstall Streamlabs:

1. Uninstall Streamlabs through Windows Settings → Apps.

2. Navigate to %appdata%OBS and delete the folder to clear leftover configuration files.

3. Download the latest installer from the official Streamlabs website and reinstall.

4. Reconfigure your audio settings from scratch starting with Fix 1.

FAQ

Q: Why does my desktop audio work in my headphones but not show up in Streamlabs?

Your headphones are receiving audio, but Streamlabs may be configured to capture a different device. Open Streamlabs Settings → Audio and change the Desktop Audio Device from “Default” to the specific device your headphones are connected through. Then confirm Windows is also routing game or browser audio to that same device. The two settings must match.

Q: Streamlabs desktop audio was working before — why did it stop?

Windows updates, plugging in a new headset, or connecting an HDMI display can silently reassign your default playback device. Streamlabs then continues watching the old device, which no longer receives any audio. Return to Fix 1 (Global Audio Settings) and Fix 2 (Windows Default Playback Device) to realign both settings.

Q: Should I use “Desktop Audio” in Global Settings or add an “Audio Output Capture” source?

Both methods work. The Global Audio Desktop Audio setting applies automatically across every scene, making it the simpler choice for most streamers. Adding an Audio Output Capture source gives you per-scene control, which is useful if different scenes need to capture different devices. Start with Global Audio unless you have a specific reason to manage audio individually per scene.

Conclusion

Start with Streamlabs Global Audio Settings, confirm the Windows default playback device matches, then work through the source configuration, Exclusive Mode, and mixer checks in order. Most users find the issue in the first two fixes. Before going live, play audio from your game or browser and watch the Streamlabs mixer meter to confirm the signal is active and reading correctly.