A YouTube Live piano stream needs two things to repeat correctly: OBS must restart the file, and the file itself must have a clean ending-to-start transition. Enabling Loop handles the first part, but it does not crossfade, edit, or repair an audible click or silence at the join.
The practical method is to use an OBS Media Source, enable Loop, send the scene to YouTube through Live Control Room, and test the boundary several times before leaving the broadcast running. Check the picture as well as the sound, because a file can repeat correctly while the visual output freezes, disappears, or changes unexpectedly.
Start with a piano source you can livestream
Use a recording you created yourself, or one for which your permission covers livestreaming and, where relevant, keeping an archive on YouTube. A purchased recording, a credit to the composer, or a public link to a song does not by itself establish that you can broadcast it. YouTube’s livestream terms place responsibility on the content provider to have the necessary rights, including music licensing rights.
This matters even when the stream is only intended as background music. YouTube says live streams are scanned for third-party content, and a stream can be interrupted or terminated when a rights owner objects. Its guidance also notes that licensed third-party music may still be interrupted if the channel has not been allowlisted by the owner through Content ID. Check the current copyright guidance for live streams for the arrangement that applies to your music.
Keep a simple record of what the permission covers. Note the track or recording, the person or organisation that granted permission, the permitted uses, and whether the permission includes live broadcasting and an archived replay. If you are using several pieces, do this for each one rather than assuming that permission for one recording covers the whole stream.
For a single piano file, prepare one local audio or video asset. The file might be audio with a still image, or a video containing piano performance and scenery. OBS lists support for audio formats including MP3, AAC, OGG and WAV, and video formats including MP4, TS, MOV, FLV, MKV, AVI, GIF and WebM in its Media Sources documentation. Use a format OBS recognises, but do not assume that a recognised format makes the musical join seamless.
If your channel is built around devotional or ambient programming as well, the same rights question applies. The workflow in how to stream devotional songs on YouTube Live from a spare PC is relevant for the operating setup, but it does not replace checking the rights for each recording.
Decide whether one file or a playlist fits
A single file is the simplest starting point when you want the same piano programme to repeat. Add that file as one Media Source and enable its Loop property. OBS will replay the file after playback completes, but the end and beginning remain the boundaries of the original asset.
A collection of separate files is a different arrangement. OBS documents a VLC Video source with a Loop Playlist property for playlists, and VLC must be installed for that source to appear. This can be useful when you want several pieces to play in sequence instead of repeating one long recording. It also gives you more boundaries to inspect, because each file can introduce its own silence, volume change, click, or visual change.
| Setup | Suits | What looping does | What you still need to test |
|---|---|---|---|
| One Media Source file | One continuous piano programme | Replays that file when it finishes | The final moment joining the first moment |
| VLC playlist | Several files in a planned sequence | Repeats the playlist when it finishes | Every track transition and the playlist boundary |
The choice is about the shape of your content, not a guarantee of reliability. A longer file has fewer file boundaries, while a playlist may make programming easier. Neither option automatically turns an abrupt ending into a musical continuation.
If you are building a playlist rather than one file, you may also want to read how to make OBS automatically play the next video in a playlist. Keep the distinction clear: moving to the next item and making its audio join naturally are related tasks, but they are not the same setting.
Add the piano file as an OBS Media Source
Open OBS and select the scene that will carry the stream. In the Sources box, use the add control and choose Media Source. Give the source a clear name, such as Piano programme, so you can identify it later if the scene contains several elements.
In the Media Source properties, select the local audio or video file. If you are using audio only, add any visual layer you want viewers to see, such as a still image or a separate visualiser. If you are using a video file, the Media Source can provide both picture and sound.
Keep the first version simple. A single media source, a static image if needed, and no unnecessary browser sources make it easier to tell whether a problem comes from the file or from the scene. Check that the file path points to the intended copy and that the source is not muted in the Audio Mixer.
The source should appear in the preview once it begins playing. Watch for an image that is cropped incorrectly, a file that shows a black frame, or a source that produces no meter movement. These are configuration issues to solve before YouTube is involved.
If you move the file later, OBS may no longer find it at the original path. For a test, avoid changing the folder or filename between local playback and the live run. Keeping the source media organised on the same machine also makes it easier to identify which version you tested.
Enable Loop and check the scene
Open the Media Source properties and enable Loop. OBS describes this property as specifying whether the file plays again once playback has completed. That is the repeat command you need for a single file.
Loop is not a crossfade control. It does not inspect the musical key, extend a note, lower the volume at the end, or blend the final waveform into the first one. When playback reaches the end, OBS starts the file again. The audible result therefore depends on what listeners hear at that boundary.
Start the source and let it play in the OBS preview. Confirm that the picture remains visible throughout the file and that the audio meter moves when the music is playing. If the source has a separate still image, make sure it is above or below the media source in the scene as intended and that it remains visible when the media reaches its end.
Then let the file reach its end while you listen locally. Do not stop playback just before the boundary, because the join is the part that needs inspection. If the file is long, make a temporary test copy or use a short representative section for initial checks, while remembering that the final asset still needs its own test.
For a 24/7 piano channel, an OBS arrangement on a spare computer is one possible operating model. If the specific pain is leaving that computer switched on and watching whether playback restarts, StreamNeo removes that part of the routine by letting you upload the prepared file, connect the YouTube stream key, and have the broadcast run with monitoring and automatic restart from the cloud. It does not repair a poor audio seam or change your music rights responsibilities.
Connect OBS to YouTube Live
In YouTube Studio, open Live Control Room and create or select the live stream. YouTube provides an encoder stream URL and stream key for the connection. In OBS, open Settings, select Stream, and enter the service details requested by YouTube. YouTube describes the stream key as both the password and address used by the encoder to send the feed in its live stream settings guidance.
Treat the key as private. Do not put it in a public screenshot, description, shared document, or browser page that other people can access. If you think it has been exposed, use YouTube’s current controls to replace or reset it before broadcasting.
YouTube’s encoder instructions explain the connection steps and also state that streams under 12 hours are automatically archived. Check the current encoder setup instructions before relying on archive behaviour for a longer programme. Archive handling is separate from whether the live audio join sounds clean.
Before starting a public broadcast, confirm the channel’s live-streaming access. YouTube currently lists channel verification and the absence of live-streaming restrictions in the past 90 days among its requirements, and its general setup guidance states that a livestreamer must be at least 16. Requirements and interfaces can change, so check YouTube’s current live-streaming eligibility page for the channel you are using.
When OBS is configured, start with a private or otherwise appropriate test rather than treating the first public broadcast as the test. The exact visibility choice is yours, but the purpose is to observe the stream in YouTube’s own preview and on a viewer device.
Test the end-to-start audio transition
The important test is not merely “does Loop work”. It is “what does a listener hear as the last sound becomes the first sound”. Listen to the end of the file, wait for the restart, and listen to the opening again. Repeat this enough times to identify whether the same issue occurs at every join.
Listen for a short silence, a click, a pop, a sudden change in loudness, a cut-off piano note, or a change from room ambience to a dry recording. Also listen for an opening that begins too loudly after a quiet ending. A transition can be technically gap-free and still sound unnatural if the musical phrases do not meet.
The file’s own edit determines much of this result. A recording that ends in a sustained reverberation and starts with a separate attack may produce an obvious jump. Another file may already have been arranged to return naturally to its opening. OBS’s Loop switch does not tell you which case you have.
If the join is not acceptable, stop and revise the source or choose another file. Do not state that it is seamless merely because the source restarted. The official OBS documentation explains the repeat property, but it does not promise automatic seam repair or a crossfade for an arbitrary music file.
You can also inspect the transition with headphones and speakers, because a small click may be easier to notice on one system than another. This is not a substitute for a viewer test. It simply gives you two ways to notice an abrupt change before you send the stream to YouTube.
For several files, repeat this check at every track boundary and at the point where the playlist itself repeats. A playlist that moves correctly from one file to the next can still have an audible gap. If you add a now-playing label or track information, the visual label should also change at a sensible point; the approach described in how to add a radio station’s now playing song title to a YouTube stream may help with that separate presentation task.
Check picture and audio during a test stream
A local OBS preview tells you what OBS is producing. The YouTube preview tells you what the platform is receiving. Use both. YouTube recommends preparing encoder streams in advance, checking that the stream is accessible on watch and channel pages and on mobile, and continuously monitoring audio and video quality in its live-streaming tips.
During the test, watch the picture through the end of the file and into the restart. Check whether the still image remains present, whether the video returns to its opening frame, and whether the source becomes black or hidden at the boundary. If the piano file includes video, confirm that motion resumes rather than leaving a frozen frame on screen.
Listen to the same boundary on the YouTube preview and on a separate viewer device when possible. A browser tab may be muted or delayed, so first confirm that the viewer device is actually receiving sound. Check for silence, a jump in volume, distortion, or a mismatch between the visible file restart and the audible restart.
Do not judge the stream only from the first minute. A short test can confirm that the connection works, but it may not reach the file boundary. Arrange the test so that you observe at least one complete repeat of the chosen asset, or use a test copy that reaches the boundary quickly before checking the final file separately.
Watch the OBS audio meters while the stream runs. A moving meter does not prove that the listener’s level is comfortable, but a flat meter when music should be playing is a useful warning. Likewise, a visible picture in OBS does not prove that YouTube’s viewer page is showing it.
Write down what you checked: source path, Loop setting, stream visibility, audio at the join, picture at the join, and the result on a second device. This small record is useful when you change the file later. A new export can have a different ending, even if the track title is unchanged.
Choose the operating plan for a long broadcast
Once the file and scene pass the boundary test, decide how the broadcast will be kept running. With OBS, the local computer must remain available for the scene and encoder connection. You may need to prevent sleep, keep the media file accessible, and check the stream rather than assuming that a successful start settles every later problem.
For a channel intended to run overnight, identify who will notice a stopped stream and what they will do next. A restart plan is more useful than a claim that a particular setup cannot fail. Consider the computer, power, network connection, file location, and YouTube stream key as separate points to check.
If you use a platform that runs the uploaded file for you, verify the exact workflow and current terms before committing. The important question for this article remains the same: does the chosen file join cleanly when it repeats. A hosted broadcast can remove the need to leave your own computer running, but it cannot grant music rights or make an unsuitable file sound continuous.
Before committing, compare the operating options on the pricing page. When the file and channel are ready, start free — 24-hour trial, no card.
FAQ
Does OBS Loop make piano music seamless?
No. Loop tells OBS to play the file again after it finishes. The source file still needs an ending that joins its beginning without an unwanted gap, click, cut-off note, or volume jump.
Should I use one long file or a playlist?
Use one Media Source when you have a single programme that should repeat. Use an OBS VLC Video playlist when you have several files and need the playlist to repeat, but test every track boundary as well as the final playlist join.
How can I test the join before going live publicly?
Let the file finish in OBS and listen through the restart, then observe the same point in YouTube’s preview and on a separate viewer device. Check both the audio and the picture, and test the final version of the file rather than assuming that an earlier export behaves identically.
Does buying or crediting a piano recording give me livestream permission?
Not necessarily. You need permission that covers the intended livestream and any archive, and YouTube may still scan the stream for third-party content or require the channel to be allowlisted by the rights owner. Check the current YouTube guidance and the terms attached to your particular recording.