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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteOBS can tame sudden peaks, but its built-in compressor and limiter do not automatically measure and loudness-match each prerecorded episode. For even volume across a 24/7 stream, measure and normalize the files before playout when possible; use OBS for consistent source levels and peak control, then test episode transitions by listening.
First identify what is changing
Listen to the end of one episode and the start of the next. If the whole programme becomes louder or quieter, the mismatch is likely in overall programme loudness. If the average level seems similar but effects or emphatic dialogue jump out, the issue is more likely short peaks or changing dynamics. Some files have both problems.
These need different remedies. Matching complete episodes calls for measuring programme loudness, commonly expressed in LUFS. Controlling brief peaks calls for dynamic processing and peak monitoring. OBS’s meter is peak-oriented: it can help you spot levels approaching digital clipping, but its bars alone cannot establish that two episodes sound equally loud. See the OBS Audio Mixer Technical Details and OBS Audio Mixer Guide.
Choose where to correct the mismatch
| Approach | Best when | What it can do | Limitation |
|---|---|---|---|
| Normalize episode files before playout | You control the files and can prepare them in advance | Measure and adjust each complete episode toward a delivery target, with peak control | You need the target specified for your destination and a repeatable file-processing workflow |
| Adjust and process the live OBS mix | Files cannot be changed, or live sources also vary | Set source baselines and control dynamics or peaks during broadcast | A compressor or limiter on the live mix does not guarantee equal integrated loudness for each episode |
If you can prepare the files, start there: use a loudness meter and a batch-capable audio or video workflow to measure each episode against the target supplied by your platform or distributor, and control true peaks. No specific processor or universal target is established here. If files must remain untouched, use per-source gain for stable level differences, then use OBS filters for dynamic control and peak containment.
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Set up OBS for consistent levels and peak control
- Make source routing and baseline gain repeatable. Keep sources routed predictably and set their gains so similar content enters OBS at a consistent level. Record a representative session and listen back before relying on it live; this is also recommended in the OBS Audio Mixer Guide.
- Add a compressor for dynamic peaks. In OBS, select the relevant audio source in the mixer, open its filter menu, and add the Compressor filter. Its threshold and ratio affect how much sound above the threshold is reduced; attack and release affect how it responds over time. Output gain can restore average level after compression. OBS describes the compressor as useful when a source sometimes spikes much louder and generally places it at or near the beginning of a filter chain. The right settings depend on the material, so do not assume defaults are a universal preset. See the OBS Compressor Filter guide.
- Put a limiter last in the relevant chain. Add the Limiter filter after other filters on that source. Its threshold acts as a ceiling for peaks. Leave suitable headroom for downstream encoding and verify the encoded output; aggressive limiting is not a way to bring an entire quiet episode up to the loudness of another. OBS says the limiter should be the last filter in the chain. See the OBS Limiter Filter guide.
- Check the output, not just the mixer. Record representative loud and quiet episodes, including their transitions. Listen back on typical playback devices and check for sudden jumps, pumping, distortion, or dialogue that becomes hard to hear. Meter readings are useful, but a listening check is necessary.
OBS’s filter documentation describes what its compressor and limiter do; it does not establish an OBS feature that scans every playlist file and applies integrated loudness normalization to each episode during playback. A single compressor on the live mix responds to the combined signal, not to each file’s integrated loudness independently. For an overview of OBS filters, see the OBS Filters Guide.
Pick a loudness target for the actual destination
There is no universal LUFS target for every internet live stream or children’s programme. Confirm the delivery specification for your platform or distributor before normalizing files; playback normalization, where present, does not prove that the incoming live feed is normalized in real time. The EBU supplement on loudness in streaming discusses streaming playback and normalization, but the behavior of your distribution path must be checked separately.
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For context, the European Broadcasting Union’s EBU R 128 v4 recommends a programme loudness target of −23.0 LUFS in its broadcast context. It allows ±1.0 LU where that target is impractical, including live programmes. This is broadcast standards context, not a target imposed by OBS or YouTube Live, and not a universal setting for children’s streams.
OBS’s meter describes signal peaks in dBFS; 0 dBFS is the digital maximum the output can represent, and exceeding it can clip. Use programme loudness measurement to compare whole episodes, true-peak checks to catch overs, and listening to judge whether transitions sound natural.
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For a YouTube 24/7 stream: verify audio and protect the archive
- Keep bitrate separate from loudness. YouTube’s live encoder guidance recommends 128 kbps for stereo audio. This is an encoding bitrate recommendation, not a programme loudness target. See YouTube live encoder settings.
- Test representative material and monitor the event. YouTube recommends testing with audio and movement similar to the real stream and monitoring stream health and quality. Check the audio during operation, not only before going live. See YouTube live streaming tips.
- Keep an independent recording. YouTube Help says streams under 12 hours can be automatically archived, while a stream exceeding 12 hours may not be captured at all; it recommends a local recording backup. A continuous stream needs an archive plan that does not depend solely on the platform’s VOD. Check YouTube’s current guidance and recording behavior for your setup at YouTube’s live archive guidance.
Common problems and fixes
- Every episode looks similar on OBS meters, but one still sounds much louder. Peak meters do not measure perceived programme loudness across a whole episode. Measure integrated loudness for the files and listen to transitions.
- The compressor makes the mix pump or sound unnaturally flat. Reduce the amount of compression and review threshold, ratio, attack, and release against the actual audio. Compression is for dynamic control, not a substitute for matching file loudness.
- Peaks still distort. Check the final output chain and source levels, then use the limiter last as a ceiling. Leave headroom and confirm the recorded or encoded result; a meter reading alone may not reveal every audible problem.
- A quiet episode remains quiet after adding a limiter. That is expected: a limiter constrains peaks rather than raising all passages to a target. Adjust the file’s loudness before playout, or correct a stable source offset with source gain.
- YouTube’s bitrate recommendation is being used as a loudness setting. 128 kbps stereo concerns encoding, not perceived volume. Set loudness based on your delivery specification and measure it separately.
- The stream is live but the full-day archive is missing. Do not assume a 24-hour broadcast will be available as a complete YouTube archive. Maintain and verify an independent recording, and check the platform’s current archive limits.
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