To change the video output resolution of an OBS-powered 24/7 YouTube radio stream, open Settings > Video and change Output (Scaled) Resolution. That is the size OBS sends to the encoder; you do not need to change Base (Canvas) Resolution if you only want to change the stream output.
YouTube normally detects the resolution and frame rate sent by your encoder. Its optional manual Stream Resolution setting is a separate detection control, not a substitute for configuring OBS to send the size you intend. Test a change before relying on it for an overnight broadcast.
Find the current OBS video settings
In OBS Studio, open Settings, then choose Video. This page contains both resolution controls that are easy to confuse: Base (Canvas) Resolution and Output (Scaled) Resolution. Check which value is currently in each field before changing anything, so you can restore the original configuration if your test looks wrong.
The labels describe different jobs. The canvas is the working area in which OBS arranges sources such as a background image, a logo, a visualiser or text. Output resolution is the size of the video produced for streaming or recording. OBS’s overview guide identifies Output (Scaled) Resolution as the stream output resolution and explains that a larger source canvas can be sent at a smaller output size.
Before editing, note the current output resolution, frame rate and encoder settings. If you did not set them yourself, a screenshot or written note is enough to make a comparison later. A live channel may look unchanged in the preview even though its encoded output has changed, so keep a record of the actual settings rather than judging only by how large the preview appears.
If you are not using OBS, do not hunt for these exact labels in another encoder. Find that software’s own stream-output setting in its current documentation. YouTube’s encoder guidance applies to incoming streams generally, but the reviewed OBS instructions do not establish the interface or behaviour of every other programme.
Canvas and output are different controls
Think of Base (Canvas) Resolution as the page on which you compose a scene, and Output (Scaled) Resolution as the dimensions of the picture you send. A radio stream might use a 1920 × 1080 canvas containing a static album-art image and channel name, while sending a 1280 × 720 output. Those figures are examples of a possible setup, not a recommended setting for every channel.
Changing only the output resolution leaves the scene workspace in place. OBS scales the composed image for the selected output, so the sources retain their canvas positions. This is why changing the canvas is not required merely to send a different output size. If you change the canvas as well, you alter the workspace itself; sources may need resizing or realignment, and assets prepared for the old dimensions may no longer sit where expected.
For a simple static scene, output scaling may be all you need. For a scene with fine text, a waveform, or several overlays, inspect the result carefully: scaling down can make small details harder to read. Conversely, a higher output size cannot create detail absent from a low-resolution source image. The practical question is whether the complete composed picture remains clear at the target size, not whether the canvas and output values match.
The distinction also helps when troubleshooting. If your logo has shifted on the OBS canvas, changing output resolution alone is not the first correction to try. If the layout is satisfactory but you want to send a smaller or larger video frame, change output resolution and leave the layout workspace alone. OBS’s encoding performance guidance also treats output resolution as a possible way to reduce encoding work; it generally cautions against reducing the canvas as a performance fix because that can complicate source capture and asset management.
Change Output (Scaled) Resolution
In Settings > Video, open the Output (Scaled) Resolution selector and choose the output size you want OBS to send. OBS documents examples such as 720p and 480p, and notes that a 1080p source can be sent at 720p. The exact list available to you depends on the software configuration. Choose deliberately rather than assuming that the largest listed option is automatically best for a radio channel.
Keep Base (Canvas) Resolution as it is if the aim is only to alter the sent size. Apply the change, then inspect the OBS preview and, more importantly, test the actual encoded stream. A smaller output can be useful when the machine is struggling, but the complete choice includes resolution, frame rate, codec, bitrate, available upload capacity and system load. Changing resolution does not independently set all those other values.
YouTube’s live encoder recommendations vary by codec, resolution and frame rate. In its current guidance, YouTube lists H.264 recommendations including 10 Mbps for 1080p at 30 fps, 12 Mbps for 1080p at 60 fps, 6 Mbps for 720p at 60 fps, and 4 Mbps for 240p–720p at 30 fps. These are YouTube’s recommendations for the stated configurations, not a guarantee that a particular connection or computer will sustain them. Check the current YouTube encoder settings table for the relevant codec and frame rate before settling on a bitrate.
For a radio channel with a mostly still image, a lower frame rate may be a reasonable production choice, but it is still a choice to test. A moving visualiser or scrolling information may benefit from more frequent frames. The best setting is the one that gives the picture you need while keeping encoding and upload stable in your real conditions; a resolution label by itself cannot tell you that.
If you already have dropped frames or other instability, change one setting at a time and observe the result. A lower output resolution may ease encoder work, while a lower frame rate can also reduce rendering and encoding work according to OBS’s performance guidance. If your issue is network upload rather than rendering or encoding, changing the canvas will not address it, and a resolution change should be considered alongside the bitrate and connection rather than as a guaranteed fix. For a broader look at diagnosing OBS drops, see how to fix dropped frames on a 24/7 Windows stream.
Check the scene after the output change
After choosing the output size, review each scene you actually use, not just the opening one. Check the background, logo, text, visualiser and any scene transitions. A single-scene devotional or lofi stream may need only a quick composition check; a local news loop with multiple layouts should be checked scene by scene because a title or ticker may be positioned differently in each.
Look for cropped edges, unreadable small type, bars that were not present before, and any source that now appears softer. These observations do not mean the canvas must be changed. First confirm that the output size is the intended value and that the sources are positioned correctly on the existing canvas. Only revise the canvas if you have a separate reason to change the composition workspace, and expect that such a change may require realignment.
A representative test should include the material viewers will actually see: spoken audio if present, a visualiser if used, and any transitions or loop points. If your channel loops recorded material, make sure the test includes the start and end of the loop as well as the static portions. A seamless-loop check addresses a different problem from output scaling, but both affect what a viewer encounters over a long broadcast.
Do not infer stream quality solely from OBS’s local preview. Confirm the outgoing stream in YouTube and read its stream-health messages. YouTube recommends testing before going live and monitoring stream health during an event. Its documentation does not establish that changing OBS output resolution during an already-running broadcast takes effect without interruption. For a 24/7 channel, use a controlled test or maintenance window rather than promising yourself that a mid-stream change will be seamless.
Resolution, frame rate and bitrate work together
Resolution is the width and height of the encoded picture. Frame rate is how often the video frames are sent. Bitrate is the amount of encoded data sent over time. They are related when choosing a configuration, but they are not interchangeable controls: selecting a new output size does not automatically mean that the bitrate or frame rate is appropriate for it.
Use YouTube’s current table for the exact codec and combination you intend to send. The H.264 figures above illustrate why the combination matters: YouTube’s recommended value for 1080p at 60 fps differs from its recommendation for 1080p at 30 fps. They are configuration guidance, not universal thresholds for a stable stream or a promise of picture quality. If you use a different codec, consult the corresponding entry rather than carrying over an H.264 figure.
Then test against your actual upload and computer. A fast connection does not rule out an encoder bottleneck, and a capable computer does not make an unreliable upload dependable. If you lower the output resolution to reduce work, retain the same canvas unless you intend to redesign the scene. If your channel also has intermittent connectivity, the practical concerns around keeping a broadcast running during a network outage are covered in this guide to Hindi music streams and internet outages.
YouTube also transcodes a live stream into multiple output formats for viewers on different devices and networks. That means your encoder’s sent resolution is not a promise that every viewer will see that exact playback option immediately. You control the incoming stream configuration; YouTube’s processing and the viewer’s playback conditions are separate parts of the experience.
YouTube normally detects the incoming resolution
In the usual workflow, set the output size in your encoder and let YouTube detect the incoming stream’s resolution and frame rate. YouTube’s live encoder instructions describe automatic detection. After starting a test stream, check the Live Control Room’s stream information and health rather than assuming that the value selected in OBS is the value YouTube has already recognised.
If YouTube shows a different or unavailable resolution, check the sending encoder first: confirm Output (Scaled) Resolution, frame rate and the active profile or scene collection. Also allow for the stream to be received and processed; avoid changing several controls at once, because that makes it harder to identify which setting caused a difference. Use YouTube’s current guidance and displayed health details to decide what to adjust.
Automatic detection is distinct from YouTube transcoding. Detection concerns the incoming encoder resolution and frame rate; transcoding is YouTube producing playback formats for viewers. Neither makes a manual YouTube resolution selection a replacement for the output setting in OBS. Your encoder still has to send the intended size.
Use manual Stream Resolution only when needed
YouTube provides a manual resolution option for cases where you need to select the stream resolution in Live Control Room. Its guidance says to create a custom stream key, then turn on manual settings under Stream Resolution. Treat this as a YouTube-side detection setting. It does not resize the video in OBS and cannot make an encoder sending one size produce another size.
Use the manual setting only when you have a reason to control detection and have checked the current YouTube instructions for your stream setup. Match the selected resolution to what the encoder actually sends. If OBS is configured for one output size while Live Control Room is manually set to a different one, you have created a mismatch rather than corrected the encoder output. The YouTube Help page may update its interface labels, so confirm the current steps there before changing a live channel’s key settings.
For most ordinary OBS streams, the simpler path is to leave YouTube’s detection automatic, set the intended output in OBS and verify the test stream. Keep a note of whether you are using a custom key and manual detection so another person maintaining the channel does not mistake that setting for the encoder resolution itself.
A safe change plan for an always-on channel
Treat a resolution change as a small planned maintenance task. Record the existing OBS video settings and, if applicable, the YouTube key mode. Pick a test period when a brief interruption or failed experiment would be manageable; official guidance reviewed for this article does not say that changing output resolution mid-broadcast avoids interruption. Do not make a critical change immediately before leaving the channel unattended overnight.
Change only Output (Scaled) Resolution first. Check that the canvas has not been altered, review all active scenes, and test the outgoing stream with representative content. Then verify YouTube receives the expected stream and look at the health messages. If the picture or stream is not satisfactory, restore the recorded configuration and test again with one adjustment at a time.
Once satisfied, write down the chosen output, frame rate, codec and bitrate together. Note whether YouTube detection is automatic or manual. This gives you a practical record if a later restart loads a different OBS profile or someone else takes over channel maintenance. If the streaming computer must remain on for the channel to continue, include its operating needs in the plan; if you want to avoid depending on that computer staying powered, StreamNeo removes that specific burden by letting you upload the file once and run the YouTube broadcast with your own computer switched off.
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
Do I need to change Base (Canvas) Resolution to change stream output?
No. Change Output (Scaled) Resolution for the sent video size and leave the canvas alone when you only want to change output. Change the canvas only if you also intend to change the scene workspace, as sources may then need resizing or realignment.
Why does YouTube show a different resolution from OBS?
YouTube normally detects the resolution and frame rate received from the encoder, while OBS’s output setting describes what it is configured to send. Check the active OBS output and YouTube’s current stream information and health messages; do not confuse incoming resolution detection with YouTube’s transcoded playback formats.
Should I switch on manual Stream Resolution?
Usually, automatic detection is the simpler route. If you need YouTube’s manual control, its guidance calls for a custom stream key and manual settings under Stream Resolution; make sure the selected value matches the size your encoder sends.
Can I change resolution while the 24/7 stream is live?
The reviewed official instructions do not confirm whether an OBS output change takes effect without interruption. Use a controlled test or maintenance window, verify the incoming stream and health, and avoid relying on an untested mid-broadcast change.