To repeat a set of local audio files in an OBS YouTube radio stream, add a VLC Video Source, load the files in the order you want, and enable Loop Playlist. VLC must be installed on the computer running OBS, and its architecture must match OBS: 64-bit OBS requires 64-bit VLC.
That setup repeats content; it does not, by itself, detect that another audio feed has failed and switch to the playlist. Treat a repeating playlist and automatic failover as separate jobs, and test each behaviour you actually need before relying on the stream overnight.
What a looping backup playlist can do
A backup playlist is a prepared sequence of alternate tracks that can play in place of, or alongside, your usual programme. For a devotional channel, that might be a local folder of bhajans to use when you do not want the usual live presenter feed. For a lofi station, it could be a quieter set for a planned overnight schedule. OBS's VLC Video Source can play a list of media files, and its Loop Playlist option returns to the start when the list reaches its end.
The useful distinction is between repeating and taking over. Looping describes what happens after the final item in that playlist. It does not say what happens when a separate microphone, browser source, remote audio feed or other programme source stops producing sound. OBS may continue streaming the scene while that source is silent; a loop option on another source does not establish that OBS will notice and switch to it.
Decide which of these jobs you mean before configuring anything:
| Need | OBS or YouTube direction | What it does not establish |
|---|---|---|
| Repeat one local audio file | OBS Media Source with Loop enabled | It is not an ordered multi-file playlist. |
| Repeat several local tracks in sequence | VLC Video Source with Loop Playlist enabled | It does not detect failure of a different source. |
| Switch to backup audio when a primary feed fails | A separately configured and tested source-switching mechanism | Playlist looping alone does not provide this behaviour. |
| Send a second contribution to YouTube | A separate ingest arrangement, such as the HLS backup URL where applicable | That is not a second list of songs or automatic audio selection. |
If you are weighing a self-operated setup against a hosted approach, first work out whether the issue is file playback, keeping a local machine running, or source failover. Those are different requirements. Our guide to 24/7 looped-streaming alternatives is useful for comparing operating approaches, while how to live-stream a video playlist on YouTube in India covers a related playlist use case. Neither changes the distinction between a repeated list and a failure-triggered switch.
Install VLC with the matching architecture
Install VLC on the same computer where OBS is running, before adding the source. OBS's documentation says its VLC Video Source requires VLC to be installed. It also specifies that 64-bit OBS needs 64-bit VLC. If the source is missing or does not behave as expected, checking that match is a practical first step rather than repeatedly rebuilding the scene.
Check which OBS build you have, then install the corresponding VLC build from the vendor's official download page. Avoid assuming that any VLC installation on the computer is sufficient: architecture mismatch can prevent OBS from using the VLC components it expects. If you manage several computers, make the check on the actual streaming machine, not a workstation where you prepared the files.
Before adding anything to OBS, put the intended tracks in a stable local folder and play them once in VLC. This catches mundane issues early: a file that will not open, an unexpected silence at the start, a track with the wrong version, or files that are not on the streaming computer. Keep the tracks available at the same paths for the whole session. Moving or renaming files after building the playlist can leave entries pointing somewhere that no longer exists.
Local files also mean local storage and local maintenance. A laptop that sleeps, a drive that disconnects, or a computer that restarts can interrupt playback even though the playlist is configured to loop. If this is a 24/7 operation, review the machine's power and sleep settings and the way OBS is kept running; the playlist setting cannot compensate for a stopped encoder. For broader preparation, see how to check whether your upload speed is enough for YouTube Live, since a working local playlist still needs a connection capable of carrying the stream.
Add a VLC Video Source in OBS
Open the OBS scene you intend to send to YouTube. In the Sources panel, use the add control and choose VLC Video Source. Give it a name that makes its role clear, such as “Overnight backup playlist”, particularly if the scene already contains a microphone, a video file, a visualiser or other audio sources.
The VLC Video Source is the direct fit when you want a sequence of files. OBS's ordinary Media Source is more suitable for looping one file; it has a Loop setting, while the VLC source exposes playlist controls, including Loop Playlist. Do not create several separate media sources and assume that this alone defines a continuous ordered playlist: you would also need to control which source is active and how transitions happen.
In the VLC source properties, add the files to the playlist and arrange them in the intended order. Use the list itself to check the sequence, rather than relying on filenames or on the order in which files happened to be selected. Leave shuffle off if the order matters. A channel might prefer a planned sequence of quieter tracks before louder ones, or a morning-to-evening rotation; if the playlist is shuffled, it no longer follows that arrangement.
Think about scene visibility as well as source configuration. The source must be active in the scene currently being sent to the encoder. If it sits in a different scene, or is hidden when you expect it to play, the playlist can be correctly configured and still not contribute audio to the programme. Name scenes and sources plainly enough that another person can check them without guessing, especially if someone else may be called on to restart the stream.
Load files and enable Loop Playlist
Add the audio files you want to use, then enable Loop Playlist in the source properties. With the option on, the list should start over after its last item. Keep the list to files you have a reason to use and have checked; a playlist of unrelated tracks can create abrupt changes in volume, mood or language that are just as noticeable on a radio-style channel as a missing track.
If continuity of order matters, leave shuffle disabled. If it does not, shuffle is still a separate choice from looping: shuffle changes the order, while looping controls whether playback returns to the beginning after reaching the end. Check both controls deliberately rather than treating one as an automatic consequence of the other.
Use consistent levels where possible. A very quiet recording followed by a much louder one can make listeners reach for the volume control; a damaged, silent or unexpectedly long file can affect the experience too. Listen through the actual sequence in VLC or OBS before putting it on air. Pay attention to the beginning and end of each item, since a file can contain silence or an abrupt cut even when OBS is playing it correctly.
Once configured, avoid changing the folder contents during a live session. If you need to replace a file or reorder items, do it in a planned test window, then verify the source again. The goal is not to assume that “Loop Playlist” makes every file valid; it is to confirm that the list you prepared behaves as intended in the scene you will broadcast.
Connect OBS to YouTube Live
In YouTube Studio's Live Control Room, create or select the live stream and obtain the stream URL and stream key for the encoder. In OBS, open the stream settings and enter the details supplied for that stream. YouTube's encoder setup instructions describe the connection process. Treat the stream key as a credential: do not paste it into a public document, screenshot or chat, and replace it if it is exposed.
Before starting a public broadcast, review the selected scene and output settings. Confirm that the playlist source is in the scene being sent, that the OBS audio meter moves when a track plays, and that the stream is going to the intended YouTube destination. A meter moving in OBS is a useful local check, but it is not proof that the audience can hear the right mix. Make a short test recording or use an appropriate private or unlisted test stream, then listen to the resulting output.
If your channel already has a normal programme feed, decide explicitly how the playlist fits into the scene. You might place the VLC source in a dedicated backup scene and switch to that scene manually when needed, or you might combine sources for a planned programme. These are different arrangements. A source that is present in the same scene may continue to play or mix according to its settings; that is not the same as a rule that detects a failed feed and transfers control to backup audio.
For a stream that depends on a local computer, remember that the YouTube connection and audio playback are separate parts of the chain. The files can play correctly while an internet connection drops, and the connection can remain live while the desired source is silent. The guide to reducing upload size for a 24/7 YouTube playlist in India can help you think about the network side, but it cannot validate your audio routing or create failover.
Test playlist transitions and output
Test the sequence before relying on it. Start the source in OBS and listen as one item finishes and the next begins. Let the last item reach its end and confirm that playback returns to the first item. This boundary check is the specific behaviour Loop Playlist is meant to provide; hearing one track play successfully does not confirm the end-of-list transition.
Check several things while testing: the expected order, audible gaps or overlaps, sudden level changes, and whether each item can be opened. Watch the OBS audio meter as well as listening to a recording or test stream. If the audio is missing from the recording, inspect the scene and audio routing rather than assuming that the playlist itself is broken. If you use a test stream, verify the viewer-side output and not only the preview in OBS.
Then test any planned manual change from the normal programme scene to the backup scene. Confirm that the alternate playlist is audible after the switch and that the primary feed is no longer mixed in unless that is what you want. Write down the steps for whoever may need to act during an overnight problem. A brief run-through with a second person can reveal confusing scene names or a switch that is easy to miss.
Do not mistake a successful loop test for a failover test. If you have configured another mechanism to detect and switch away from a failed source, test that mechanism separately under controlled conditions. The OBS media-source documentation describes playlist and loop controls, not a general promise that a primary-feed failure will trigger a switch. Avoid deliberately disrupting a public stream to test; use a private or unlisted test arrangement where appropriate, and check YouTube's current guidance before going live.
Looping is not automatic failover
A loop answers, “What should this source do when its playlist reaches the end?” Automatic failover answers, “How will the system recognise that the primary source has failed, and what will switch to backup?” The second question requires detection and switching behaviour beyond the loop option. Do not plan around OBS automatically detecting silence or a dead feed on the strength of a repeating playlist setting.
If a human will make the change, say so in the runbook and practise it: identify the relevant scene, explain how to select it, and check the output after switching. This can be appropriate for a small station where someone is available to monitor the channel. Its limitation is that nobody can manually react if the problem occurs while no one is watching.
If you require automatic switching, choose a separately configured source-switching method that explicitly supports the failure condition you care about, and test how it behaves. “Failure” needs a definition: a disconnected input, silence, a frozen picture or an application stopping are not necessarily the same signal to a switching system. Confirm what the mechanism can detect, what it does when the backup is also unavailable, and whether it resumes the primary feed or needs a person to intervene. Do not infer those capabilities from the VLC playlist controls.
There is another meaning of backup in YouTube's documentation. YouTube's HLS setup guidance refers to a backup server URL for a second ingest path when using an HLS-capable encoder. That is redundancy in how a contribution reaches YouTube, not alternate local songs in OBS. The HLS instructions include protocol-specific requirements, and YouTube notes that HLS has higher latency than RTMP; those details are not generic requirements for an OBS RTMP playlist.
If the real need is avoiding operation of a local computer around the clock, a hosted approach may be worth assessing. StreamNeo removes the need to keep your own computer running the broadcast: you upload a video, provide your YouTube stream key, and the stream runs with monitoring and automatic restart if it drops. That addresses the ongoing local-machine burden, not a claim that an audio playlist alone detects a failed primary feed; check whether the workflow fits your channel and current YouTube requirements.
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 a playlist automatically?
A VLC Video Source can repeat its list when Loop Playlist is enabled. Add the files in the order you want and leave shuffle off if order matters. Test the transition from the last file to the first before using it in a live programme.
Does a backup playlist take over if my radio feed fails?
Not simply because Loop Playlist is on. Looping repeats that source's list; it does not establish that OBS detects a separate feed failure or switches sources. Configure and test a distinct switching mechanism if automatic failover is required.
Can I use OBS Media Source instead of VLC Video Source?
Use Media Source when you want to loop one file. For several local files in a sequence, VLC Video Source is the more direct fit because it provides a playlist and a Loop Playlist control. VLC needs to be installed, with its architecture matching OBS.
Is YouTube's HLS backup URL the same as backup music?
No. The HLS backup server URL is for a separate YouTube ingest path in an HLS setup. It is not a playlist of alternate audio files, and it does not select backup music when your programme feed fails.