In Windows 11, open Settings > System > Sound > Volume mixer, find the running game or app under Apps, and choose a device from its Output list. If it is silent, check its app-specific volume and mute state as well.
Windows 10 uses a different route: start from the taskbar volume icon and the Sounds window, then check the app in Volume mixer. The steps below keep the two versions separate, because changing the system default does not necessarily change an app’s chosen output.
Choose the right Windows instructions
First check which version you are using. In Settings, open System > About and look under Windows specifications. The settings and labels can vary slightly with Windows updates, but Windows 11’s per-app route is in Settings’ Volume mixer; Microsoft’s Windows 10 route uses the taskbar volume icon, Sounds, and the Playback tab.
Use the Windows 11 instructions if you have Windows 11. Use the separate Windows 10 section if you have Windows 10. Avoid following one version’s menu names on the other: a missing menu may simply mean the directions do not match your Windows version, rather than that your computer lacks per-app audio controls.
The distinction matters if you have more than one output, such as built-in speakers and a headset. You might want a game to use the headset while notifications or other apps continue through the speakers. Windows provides an app-level output choice for that kind of separation, though individual apps may also have their own audio settings.
This is a routing setting, not a purchase decision. If Windows already detects the output device, you can usually select it without adding software or hardware. For a longer-running media setup, keep the troubleshooting scope clear: a change to an app’s audio device is different from configuring a playlist source for an Indian music YouTube live stream.
Set an app output device in Windows 11
The Windows 11 app-level control is the primary place to start. Open Start > Settings > System > Sound > Volume mixer. You can also search Settings for “Volume mixer” if the navigation labels on your device are arranged differently.
Under Apps, locate the game or app. It generally needs to be open and producing, or recently producing, audio before it appears in the list. If you do not see it yet, launch it, play a sound, and return to Volume mixer. Keep the app open while you make the change.
Find that app’s Output menu and select the device you want it to use. For example, choose your headset for a game while leaving the system default set to speakers. The app’s Output choice is app-specific; it is not a global instruction to move every sound to the headset.
After selecting the device, test the app with a sound you can recognise. If the output does not change immediately, close and reopen the app, then test again. Some applications hold on to the audio device they were using when they started, so restarting the app can help it recognise a changed route. Do not change several unrelated settings at once: make one change, test, and note whether it helped.
Microsoft’s instructions for app audio that does not work while system sounds do cover the Volume mixer route for Windows 11 and Windows 10. Follow the Windows 11 path there if you need to compare the current labels. The general Windows sound troubleshooting page is useful if the device itself is missing or system audio is affected too.
Check the app’s volume and mute state
A selected output device is only one part of the path. An app can be routed correctly and still be silent because its own volume is at zero or it is muted. In Volume mixer, inspect the app’s volume slider and mute control as well as its Output choice. Raise the app slider to a moderate level for testing and make sure mute is off.
Then check volume controls inside the app. A game may have a master slider and separate controls for music, effects, voice chat, or dialogue. A browser-based app may have a tab or player mute control. If only one part of the sound is absent, an internal category slider is worth checking before changing Windows device settings again.
Keep the Windows system volume in view too. The system slider controls the overall output level, while an app slider adjusts that app relative to the rest of the system. For a simple test, set the system volume to a comfortable level, unmute the app, and give the app slider enough volume to be audible. Avoid turning everything to maximum; that can make the eventual result unexpectedly loud when the correct route starts working.
A practical check is to play a known sound in the affected app, then play a system sound. If the system sound works but the app does not, focus on that app’s mute, volume, and output settings. If neither works, investigate the selected output device and its connection. This distinction saves time: a problem limited to one app is not automatically a failed speaker or headset.
If you are checking a media player as part of a YouTube workflow, keep the local playback test separate from the broadcast itself. The guide to keeping an OBS stream running after shutting down your computer addresses a different operating problem; it does not replace checking Windows’ playback route when a desktop app is silent.
Set or check the device in Windows 10
Windows 10’s menus are different from Windows 11’s. Right-click the volume icon on the taskbar and choose Sounds. In the window that opens, select the Playback tab. This shows the playback devices Windows recognises and indicates the default device.
If the intended device is not the current default and you want it to be the system-wide default, select it in Playback and use the available default-device control. This affects the general Windows output choice; it is not the same as setting a particular app’s output. Next, return to the taskbar volume icon and open Volume mixer. Find the running app and check its volume and mute state, then confirm its playback device if the mixer provides that control.
Windows 10 interface labels can differ between releases and updates, so use Microsoft’s Windows app-audio instructions as the reference for the applicable Windows 10 route. Do not substitute the Windows 11 sequence of Settings > System > Sound > Volume mixer and assume every menu will be in the same place.
As on Windows 11, open the app and play audio while checking it. If an app is absent from the mixer, it may not have produced sound during that session. Start playback, reopen the mixer, and check again. If an app has an independent output selector in its own settings, make sure it agrees with the device you intend to use in Windows.
Understand app output versus system default
The system default is Windows’ general playback choice. An app-specific output is a choice for one app. Microsoft documents that an app can use an output device different from the system default, which is useful when you want to keep unrelated audio on its usual device.
For example, imagine speakers are the default for notifications and a music player, but you want a game to use a headset. Selecting the headset in the game’s app-level Output control can keep the other sounds on the speakers. If you later change the system default, do not assume the game’s own selection will follow it. Check the game’s output again if you want it to move.
Apps can also expose an output selector within their own settings. If both Windows and the app have a device choice, the app’s setting may affect where its audio goes. When the settings appear to conflict, choose the intended device in the app and Windows, then restart the app and test. The result can depend on the app and Windows version, so verify what you hear rather than assuming a particular control always takes precedence.
This separation is useful when you are monitoring more than one kind of sound, but it also adds a place to check when something changes. A headset becoming the new Windows default does not prove that every open app has switched. Likewise, plugging in a USB headset can make it available without automatically routing every app to it. Check the app’s output control first when only one app is going to the wrong place.
Troubleshoot a missing app or device
If the app is not listed, make sure it is open and has played audio. Some apps only appear in Volume mixer while they are active. Start playback, return to the mixer, and allow the list to refresh. If it still does not appear, close and relaunch the app, then check again.
If the device is absent from the app’s Output list, first see whether Windows detects it. Check its cable or wireless connection, power, and any physical mute or volume control. In Windows sound settings, review the available output devices and their properties. A device that is disabled or disconnected cannot be selected for an app. Microsoft’s general guide to sound and audio problems explains device and output checks.
If Windows detects the device but it does not appear for one app, restart that app and inspect its internal audio settings. If the device is missing throughout Windows, focus on the device connection, enabled state, and audio driver rather than repeatedly changing the app slider. Where you have a choice, test with a known working output device to help distinguish a device issue from an app issue.
When system sounds play but one app remains silent after checking routing and volume, Microsoft lists restarting Windows Audio and Windows Audio Endpoint Builder, and updating the audio driver, among troubleshooting measures. These are not normally needed just to choose another output. Treat them as later steps, save your work first, and use Microsoft’s current instructions for the relevant Windows version rather than stopping services or changing drivers by guesswork.
A small test sequence can keep troubleshooting orderly: confirm the device appears in Windows, confirm the app is not muted, select the app output, and test. If that does not work, restart the app; only then move on to broader system troubleshooting. Write down the original device choice before changing defaults, especially if other apps rely on the current arrangement.
Keep playback checks separate from a live broadcast
If your reason for changing audio is a live channel, identify where the sound is meant to play. A Windows playback device controls where local app audio is heard. It does not, by itself, prove that the same audio is being sent into a broadcast, nor does it change a YouTube stream’s audio source. Check the capture or streaming application separately if viewers cannot hear something that you can hear locally.
For a channel made from recorded material, the computer’s local playback route may be irrelevant to whether a scheduled or continuous broadcast continues. A guide on running a recorded-sermon stream for a church in Kerala covers that publishing use case, rather than Windows sound output. Keeping these jobs distinct helps avoid changing a working stream when the issue is only what you hear at the desktop.
For a desktop-dependent workflow, the computer must remain available for the work it is doing. If your practical problem is that the computer needs to be off while a file continues as a YouTube live stream, StreamNeo removes that specific need to keep the local machine running for the broadcast. That is separate from routing sound from a game or app to speakers or a headset.
Windows 10 support status
Microsoft states that Windows 10 support ended on October 14, 2025. You can still use the separate Windows 10 audio steps above on a Windows 10 PC, but support status is worth considering if you are deciding whether to keep using that system. Check Microsoft’s current Windows 10 support information and relevant Windows guidance for your device.
End of support is not an audio-setting diagnosis. It does not mean an existing playback device stops working on that date, and it does not tell you whether the cause of silence is a muted app, a disconnected headset, or a driver issue. Use the version-specific steps to troubleshoot the immediate problem, and make any operating-system decision separately using current official information and your device’s requirements.
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FAQ
Why is one app silent when Windows sounds work?
Check the app’s mute state and app-specific volume in Volume mixer, then check any audio controls inside the app. Confirm that its Output is set to a device Windows detects, and restart the app if it does not respond to a changed route.
Does changing the default playback device move every app?
Not necessarily. Windows supports app output that differs from the system default, so a per-app choice can remain separate. Check the affected app’s Output control rather than assuming a system-default change has changed it.
Why can’t I see my game in Volume mixer?
The game may need to be open and producing audio before it appears. Start playback, return to the mixer, and check again; if needed, close and relaunch the game. Also make sure you are following the instructions for your Windows version.
What should I do if the output device is missing?
Check that it is connected, powered, and detected and enabled in Windows sound settings. If it is missing system-wide, use Microsoft’s device and audio troubleshooting guidance; if only one app cannot see it, restart that app and check its own audio settings.