If you want videos with different volume levels to play in a YouTube loop, give each local file its own OBS Media Source, enable Loop, and adjust each source’s Audio Mixer fader. Then listen to a test recording: the fader changes a source’s overall level, but it does not automatically equalise clips or repair a poorly recorded file.
The first decision is whether you have separate files or one playlist source. Separate Media Sources give you an independent fader for each file; a VLC Video source handles a playlist, but its mixer fader applies to that source as a whole. That distinction determines what you can balance in OBS and what must be fixed in the media itself.
Identify how your loop is set up
A loop can mean a single video replaying, several clips loaded independently into a scene, or a playlist that advances from one clip to the next. Those arrangements may look similar during a broadcast, but they do not give you the same audio controls. Before changing levels, identify which source is producing the audio.
For one local file, a Media Source can play the file and repeat it. For several local files, you can add a separate Media Source for each file and arrange when each appears in your scene. A playlist of several files is a different job: OBS’s VLC Video source accepts a playlist and has a Loop Playlist option. OBS says VLC must be installed for that source type to be available. See the OBS Media Sources guide for the current source properties and behaviour.
Your choice depends on whether you need individual control. A playlist is convenient when the clips should run in sequence and share one level. If one bhajan is much quieter than another and you want to compensate without editing the files, independent sources give you a fader for each. For a broader overview of playlist-based channel setups, see how to create a 24/7 YouTube music stream with a playlist.
Do not start by looking for a master setting that evens every clip out. The mixer controls the output level of its source. If the source contains multiple clips, they remain part of that one source’s output and do not acquire separate mixer entries just because the playlist advances.
Add separate files as Media Sources
To adjust the level of each local video independently, add each file to OBS as its own Media Source. In the Sources panel, use the add control, choose Media Source, and select the corresponding file in its properties. The precise wording and layout can vary with OBS versions, so check the source properties rather than relying on a remembered screenshot.
Give every source a name that identifies the clip, not a generic label such as “Media Source 2”. Names such as “Morning bhajan — quiet recording” and “Instrumental interlude” make it easier to match a sound to its meter and fader. This becomes useful when you return to the scene after a few days or need to diagnose an unexpectedly loud transition.
A separate source is not necessarily a separate visible video at every moment. You can use scene arrangement and visibility to decide what is on screen, while the audio setup determines which source is heard. Make sure the audio from a source is not left active unintentionally when its video is hidden; test the actual scene transitions you intend to use. OBS’s mixer guide describes the source names, meters, faders, mute and monitoring controls you will see in the Audio Mixer: OBS Audio Mixer Guide.
This setup is suitable for a devotional stream with several recordings, a study channel alternating ambience tracks, or a small business loop with a spoken introduction and background music. The common requirement is that the files remain separate sources in OBS. If you have already joined them into one long video, you will have one source-level control instead of a fader for each original segment.
Enable Loop for each file
Open the properties for a Media Source and enable its Loop option. That tells OBS to restart that file when playback reaches the end. If you have made several Media Sources, check Loop on each one that should repeat; enabling it on one source does not set the others.
Test the end of each file as well as the start. A clip may contain silence at the end, a sharp cut, or a different loudness when it restarts. The Loop option repeats the media; it does not smooth transitions or remove silence. If a pause is intentional, you can leave it. If it interrupts a continuous music or ambience stream, trim or revise the file before using it.
Keep the source names and the filenames understandable. It is easy to mistake a quiet version for a master version when they are both called “final”. If you revise a recording to correct its level, use a distinct filename, replace the right source, and play it back in OBS before relying on it overnight.
If your content consists of many clips that should advance automatically, a playlist may be simpler than manually coordinating individual sources. The trade-off is that the playlist behaves as one source in the mixer. For a channel planning to run a sequence of music videos, a YouTube radio-style live stream with a video playlist covers the larger playlist setup; this article focuses on the level controls available once audio reaches OBS.
Adjust each source’s Audio Mixer fader
Start playback and find the matching source name in Audio Mixer. Move that source’s volume fader in small steps, then listen again. Moving it down reduces the level sent from that source; moving it up raises the level, subject to the audio already present in the file and the limits of the signal chain.
The fader is measured in decibels, but you do not need to chase a particular number just because another clip uses it. A quiet recording may need a modest increase, while a loud one may need to be reduced. The right balance is the one that sounds consistent across the sequence without distortion, not a set of identical mixer readings.
Adjust by comparing adjacent clips in the order your audience will hear them. For example, let a quiet instrumental play, then let the next vocal recording start. If the transition sounds abrupt because the vocal is much louder, lower its source fader and listen again. You are balancing the output of each source, not changing the file or its original recording quality.
OBS cautions that meter appearance alone is not a reliable way to judge perceived loudness: sounds that appear equally loud on meters can sound different to a viewer. Use meters to notice level and clipping, but make the final decision with your ears. The OBS guide gives qualitative colour guidance for different types of content; it is not a universal mastering target or a YouTube loudness specification.
If your scene also has a microphone, music bed or alert, identify those entries separately. Mute and unmute one at a time if you are uncertain which meter corresponds to the sound. Avoid moving a fader while several sources are playing unless you can distinguish their contributions. A clear source naming scheme is more useful than a complicated set of controls you cannot confidently identify.
A related consideration is the audio route feeding OBS. If you are capturing playback from a browser or another Windows application rather than loading local files as Media Sources, the appropriate capture source differs from this workflow. OBS documents Application Audio Capture for Windows 10 version 2004 or later and Windows 11, and notes that OBS Studio 30.1 can capture audio with Window Capture or Game Capture. Its Application Audio Capture guide also explains the risk of echo if Desktop Audio captures the same sound separately. Do not apply those Windows-specific directions as if they described every operating system or local-media setup.
Watch meters and make a test recording
Play representative clips and keep an eye on their mixer meters. OBS’s advice is to watch the meters, while remembering that their visual movement cannot tell you exactly how loud a sound feels. If the meter reaches red, treat it as a warning to investigate: clipping can distort audio, and reducing a source fader may help if the problem is at the source output. If distortion is already baked into the file, a lower fader will make the damaged sound quieter, not clean.
For a stream that includes speech, music and ambience, listen to each kind of material at a realistic playback level. Speech, a sustained tanpura drone, and a bright cymbal hit have different sonic character. A brief peak may look prominent on a meter without making the entire clip feel loud, while steady music can sound strong without large meter swings. There is no single OBS meter position that guarantees a good result for every recording.
Use Audio Monitoring if you need to hear the signal OBS is handling, and verify that the monitoring device is the one you expect. Monitoring is a way to listen to the signal; it does not replace checking the recording that will actually be sent or published. Headphones can help you catch a low-level hum, clipped syllable, or sudden jump, but listen at a comfortable level and also check on an ordinary speaker if that is how your audience may listen.
Make a short test recording that includes the start, a transition between noticeably different clips, and a loop point. Listen to the resulting file from beginning to end. Check that both clips are present, levels do not jump uncomfortably, nothing is muted, and the ending behaves as expected. If you make an adjustment, record another representative sample rather than assuming the change fixed every transition.
If the recording will go straight to YouTube without editing, make sure the audio you need is included on the ordinary playback track. OBS’s multiple-track guide explains that separate tracks are useful for later editing, but standard video players generally play one track at a time; OBS recommends track 1 for sources intended for direct playback. See OBS’s multiple audio track recording guide before using isolated tracks as a substitute for balancing your live mix.
For an always-on channel, this test matters more than a quick meter glance at the beginning. A channel can run into a quiet segment hours after you stop watching. If you are using a computer that should not have to stay switched on for the broadcast, StreamNeo removes that particular operational burden by running an uploaded file as a YouTube live stream after you provide your stream key; it does not change the need to prepare and check your audio first. For other OBS-specific preparation, see setting OBS audio output for a 24/7 bhajan stream on Windows.
When the playlist is a VLC Video source
If you have a playlist rather than separate sources, add it with OBS’s VLC Video source and use its playlist controls, including Loop Playlist when the list should repeat. OBS documents this source as requiring VLC installed. The playlist gives you a practical way to cycle through several files, but the audio reaches the mixer as one source entry.
That means its fader changes the level of the playlist source overall. It cannot identify which item is playing and apply a different fader to each item in the list. If your clips have already been balanced in an editor, this may be entirely adequate. If their loudness varies substantially and you want to keep the playlist workflow, adjust the clips in an audio or video editor before building the playlist, then test the complete sequence in OBS.
Choose separate Media Sources when per-file fader control is the priority and you are comfortable managing them individually. Choose VLC Video when playlist handling is the priority and the files are already reasonably consistent or will be prepared beforehand. If the playlist is long, test more than the first two entries: a quieter track later in the order can be easy to miss in a brief check.
Do not interpret “playlist” as a promise that OBS will normalize the media. Playback order and replay behaviour are separate from loudness processing. If you need individual control inside the sequence, change the source arrangement or prepare the files before importing them.
What the fader cannot fix
A mixer fader applies one level adjustment to its source. It cannot make quiet and loud passages inside the same file equally loud, remove hiss, restore clipped peaks, or improve a distant microphone recording. For a single long file containing several sections at different levels, the fader moves the whole file together. Correcting level differences inside that file requires editing the media or splitting it into separately controlled sources.
The same limitation applies to a VLC playlist entry. One source-level fader changes the playlist output, not just the current clip. If the quieter track needs a boost while the louder track should remain where it is, prepare those files individually or use a source arrangement that gives each clip its own mixer entry.
A fader also does not make the original file louder in storage. If you export a recording for another purpose, the change you hear in OBS may not be present in that source file. Keep a copy of original media before editing, and make changes in a deliberate workflow so you know whether the correction lives in the file, OBS scene, or final recording.
Finally, OBS settings cannot decide whether a recording is appropriate to broadcast or whether you have permission to use it. Check the current YouTube guidance and the rights relevant to your material. Treat audio preparation, rights checks and stream operation as separate tasks rather than assuming that a clean meter resolves all of them.
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FAQ
Can I make each song in a playlist have a different volume in OBS?
Not with one playlist source fader. Use separate Media Sources for independent mixer controls, or adjust the files before placing them in a playlist source.
Should every clip reach the same meter level?
No. Similar meter readings do not guarantee that clips will sound equally loud, and different types of audio have different dynamics. Compare the clips by listening and confirm the result in a test recording.
Does enabling Loop change the audio level?
No. Loop repeats a Media Source when its file ends; it does not alter the recording’s loudness or smooth the transition. Listen to the loop point and revise the media if the restart is distracting.
Do I need a physical audio mixer for this setup?
No. For local files in OBS, the Audio Mixer faders provide the per-source level controls described here. A hardware mixer may suit a different recording workflow, but it is not required to balance separate Media Sources.