If OBS audio stops during a 24/7 sleep sounds stream, start by checking the source meter in the OBS mixer while the sound should be playing. A moving meter and a silent meter point to different parts of the signal path, and silence in your headphones does not by itself mean viewers have lost the stream audio.
The useful question is not whether OBS has one universal overnight audio fault; the details here do not establish one. First identify whether the silence affects the OBS meter, local monitoring, a recording, or the live stream. Then follow the signal from the sound source towards the output, changing one thing at a time.
Identify which output is silent
When you notice silence, write down what you can and cannot hear. Is the audio missing from your headphones, from a local recording, from the live stream, or from all three? If you are monitoring the stream on another device, distinguish that playback from OBS's own local monitoring. They are separate checks.
A sleep-sounds source may be a looping video or audio file in an OBS Media Source, audio from a browser or playback application, or an input from a capture device. It may also be desktop audio captured globally. The right checks depend on which source you use, which operating system and OBS version are involved, and which output has failed. Those details are not specified by the symptom alone.
Use this first split to narrow the search:
| What you observe | First place to investigate |
|---|---|
| The source meter is inactive while sound should be playing | Source playback, selected device, or audio capture into OBS |
| The meter moves, but headphones or speakers are silent | OBS monitoring mode and selected monitoring device |
| The meter moves, but a test recording is silent | Track assignment and recording output settings |
| A test recording has sound, but viewers report silence | Stream track and live output; verify using a separate playback device |
These observations are clues, not proof of a cause. For instance, an inactive meter narrows attention to the source and capture path, but you still need to check whether the source is paused, ended, muted, or sending sound to a different device. If you are comparing a live feed and a recording, use the same scene and test clip so that a scene change does not introduce a second variable.
Keep a short incident note: the time you found the problem, the source type, whether the meter moved, and which outputs were silent. If the failure returns, that record is more useful than a vague note that audio stopped overnight. The distinction is also useful if you ask someone else to help: they can start at the failed point instead of changing every audio setting.
Check the OBS mixer meters
Open the mixer and watch the relevant source while the sleep sounds are meant to play. OBS's audio mixer guide describes its meter, fader, mute and monitoring controls. The meter is the first practical split: it indicates whether OBS is receiving a level from that source at that moment.
If the meter is flat, do not begin by raising the stream volume. A fader affects a signal that reaches the mixer; it cannot restore playback that has stopped or capture from a device that is no longer sending audio. Check whether the Media Source is active and playing, whether its file is still selected, and whether playback has reached an end rather than looping as intended. If the sound comes from another application or a device, check that it is still playing and that OBS is capturing the intended output or input.
If the meter moves, check the source's mute state and fader position. A meter can show incoming audio even when the source is muted or turned down in the mix. Confirm that the source is assigned to an audio track used by the output you are investigating. A stream and a recording can have different output configurations, so a healthy meter alone does not establish that both are receiving the signal.
Avoid making several changes together. Note the original mute, fader and track settings; change one item; then test again. If the meter begins moving after a source or device correction, you have located an upstream issue. If the meter was moving throughout, return your attention to routing and output rather than repeatedly restarting the source.
Trace the sleep-sound source
For a Media Source, check its playback state and loop setting, then confirm that the source belongs to the scene currently on air. If the scene changes, make sure the source is not removed or disabled in the replacement scene. A source can appear configured correctly in one scene while the live scene uses a different instance or no instance at all.
For desktop audio, establish which application is producing the sound and which device OBS captures. The application may continue to play while its output device changes, or it may stop on its own. Check the application's playback state and operating-system volume controls before assuming that OBS is at fault. If you use a capture device, confirm its connection and selected input. Do not replace a device or change drivers before recording what OBS currently sees.
The OBS audio sources guide explains how to add audio sources, including scene-level input and output captures. Scene-specific capture can be useful when a device belongs only to particular scenes, but OBS warns that capturing the same device globally in Settings → Audio and again in a scene can cause echo. Choose a deliberate route for each device, then verify which source meter responds.
If the sound comes from a browser or another player, a useful test is to play a short known section and watch the meter. That separates “the file or application is not playing” from “OBS is not capturing its output”. For a file that runs for hours, check its loop behaviour during a controlled test rather than waiting for another overnight failure. The aim is not to prove that a particular playback method is always reliable; it is to observe whether your chosen source keeps feeding the mixer.
Keep the test simple. Use one source and one scene if possible, and avoid changing the audio device, scene collection and file at the same time. If a test works only when you manually restart playback, record that detail. It tells you that audio can reach OBS under some conditions, but it does not yet explain why playback stopped or whether the live output was also silent.
Check routing and monitoring settings
Once the mixer meter moves, inspect the route from that source to the destination that appears silent. Check that the source is not muted, that its fader is not at the bottom, and that the relevant audio track is enabled for the stream or recording. Track assignment matters: the mixer can show activity while an output uses a different track.
Monitoring is a separate route for you, the operator. If viewers can hear the stream or a recording contains sound while your headphones are silent, check the source's monitoring mode and the monitoring device selected in OBS. Conversely, hearing sound in headphones only confirms that your local monitoring path works; it does not prove the stream output is configured correctly.
Individual issue reports describe monitoring symptoms in particular setups, not a cause for every 24/7 stream failure. One OBS project report concerns a setup where monitoring stopped after device reconnection, a Mac lock or a restart; the reporter said toggling monitoring restored it. Another concerns an audio-only Media Source and monitoring around scene transitions or playback changes. These are useful prompts for tests, but neither establishes that the stream itself lost audio or that the same behaviour applies to your system. See the reports for issue 11193 and issue 3806 as individual cases, not general diagnoses.
If monitoring is the only symptom, you can try toggling the source's monitoring setting and then test again. Treat that as a recovery check, not a guaranteed permanent fix. Note whether the monitoring device was disconnected, changed, or unavailable when the symptom appeared. If the stream and recording are also silent, toggling monitoring is unlikely to be the first useful test; follow their output paths instead.
Test a recording and the live signal separately
Make a short local recording using the same scene and source that you intend to leave running. Play it back in a separate application and listen for the sleep sounds. A recording gives you a check of the configured recording output, but it is not a substitute for testing the live path: the two outputs may not use identical tracks or settings.
Then verify the live stream separately. Use a private or otherwise suitable test broadcast if available, and listen from a second device or a separate playback session. Do not rely only on the preview or on OBS's monitoring. Confirm that the test uses the scene and audio source planned for the overnight run. Stop the test when you have enough evidence; you do not need to leave an unnecessary broadcast running to diagnose a routing question.
If the recording is audible but the live playback is not, inspect the stream's track and output configuration. If the stream is audible but the recording is not, examine the recording track and output settings. If both are silent while the mixer meter moves, look for a shared routing or mute issue downstream of the meter. If both contain audio but local monitoring is silent, keep the diagnosis focused on monitoring.
A brief test can miss a fault that only appears after a loop, scene change or device interruption. Reproduce one suspected event deliberately where practical: let the file loop, switch the intended scene, or reconnect the device only if that is part of your normal setup. Check the meter and record again after each event. Do not infer that a single successful minute proves a full night will be trouble-free; it only shows that the tested path worked at that point.
For more on maintaining a useful record of a long-running broadcast, see how to log output for a 24/7 stream. The particulars differ between OBS and FFmpeg, but the principle is useful: preserve enough evidence to see whether the failure occurred at the source, capture, routing or output stage.
Review device and application behaviour
If the meter becomes inactive after a device reconnect, operating-system sleep or application interruption, check whether the selected capture or playback device is still the one you intended. The device list or application output may have changed. Re-selecting a device can be a reasonable test, but first note its previous name and the point at which the meter stopped. Otherwise, a setting change may hide the evidence without explaining the recurrence.
For a source that depends on another application, check whether that application paused, closed, lost focus, or changed its audio output. For a capture device, check whether OBS still lists the expected input and whether the device is active. An operating-system update, device change or OBS restart can be relevant context, but none is a diagnosis on its own. Record the operating system and OBS version before considering driver changes or hardware replacement.
Do not buy headphones, a capture device, a cable or a UPS simply because the sound stopped. Those purchases make sense only if testing identifies a device, power or continuous-operation problem that they could address. A routing error will not be fixed by new headphones, and a silent local monitor does not establish that the stream output needs replacement hardware.
If the symptom is repeatable, note the source type, selected device, scene, whether a loop or transition occurred, and which outputs failed. Include whether the meter moved and whether reconnecting or restarting changed the result. That is a more useful support report than saying only that OBS went silent. It also gives you a basis for comparing one controlled test with another.
If your main difficulty is keeping a long-running broadcast going while your own computer is off, StreamNeo removes the need to leave that computer running: it turns an uploaded video into a YouTube live stream, with the file and stream key supplied by you. It does not diagnose an OBS setup or apply to platforms beyond YouTube, so first decide whether the issue is the local OBS signal path or the operating model you want.
Retest the full signal path
After a change, begin at the source and follow the same order: confirm playback; watch the OBS mixer meter; inspect mute, fader and track assignment; check monitoring only if local listening failed; then test a recording and the live signal separately. This sequence prevents a working headphone path from being mistaken for a working stream, or a healthy meter from being mistaken for audible output.
Retest under the condition that previously preceded silence. If the source looped, observe the loop. If a scene transition was involved, check the new scene. If a device reconnect was involved, test only that event and verify the result before changing anything else. Leave the setup in its intended overnight state during the final check, including the correct scene and playback source.
For a useful handover, keep a compact note with the date and time, OBS and operating-system versions, source type, selected device, meter activity, and the status of monitoring, recording and live playback. Avoid treating one person’s issue report as confirmation of your own cause. A repeatable observation in your setup is stronger evidence than a similar symptom described elsewhere.
If testing points to a source that cannot keep playing, resolve that before relying on a long run. If it points to a track or output configuration, preserve the working settings after verifying both recording and live output. If only monitoring fails, you can continue troubleshooting that local route without claiming that viewers have lost audio. The outcome should be a specific finding about your signal path, not a universal rule about OBS overnight behaviour.
If you are also reviewing the sound file itself, the guide to making a 24/7 gentle-rain stream covers the broader source-and-loop setup. For choosing a playback method, see software for streaming pre-recorded video to YouTube Live. These are relevant when source playback is the weak point; they do not replace checking the meter and output that actually failed.
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FAQ
Why does OBS audio stop after running all night?
The symptom alone does not identify a cause. Check whether the source meter is active, then determine whether the silence affects monitoring, recording or the live stream. A stopped source, capture change, routing setting or monitoring issue are different possibilities to test, not one proven universal defect.
If I cannot hear the audio in my headphones, is the stream silent?
Not necessarily. Local monitoring and stream output are separate paths, so check a recording or listen to the live playback from another device. If those contain sound, investigate the monitoring mode and device rather than assuming viewers heard silence.
What does a flat OBS mixer meter mean?
It means OBS is not showing a level from that source at the time you checked. Confirm that playback is active, the correct scene and source are in use, and the selected application or device is sending audio to OBS. Raising a fader will not restore a source that is not reaching the mixer.
Should I toggle monitoring or reinstall an audio driver?
If only local monitoring is affected, toggling its setting is a reasonable test, but individual reports do not make it a guaranteed repair. Note the device and version details first. Consider driver changes only after controlled checks point to the device or operating system, rather than changing several parts of the setup at once.