For a conventional split-screen YouTube Live stream, arrange your cameras, gameplay or other inputs in a scene in OBS, then send that finished composition to YouTube. YouTube’s horizontal/vertical dual-format feature is different: it provides different aspect-ratio presentations for viewers, rather than arranging multiple sources into panels for you.
You do not need a capture card, a new camera or paid software for every setup. Start with the sources you already have, decide what viewers need to see, and test the framing and sound before making the broadcast public.
What split-screen means on YouTube Live
In this guide, split-screen means one video canvas with two or more visible areas. For example, you might place two camera feeds side by side for an interview, or show gameplay as the main image with a smaller webcam panel in a corner. OBS combines those sources into one programme output, which YouTube receives as the encoder feed.
YouTube’s encoder workflow is useful when you need to arrange external video sources, overlays or other elements before the stream reaches viewers. YouTube’s encoder streaming guidance explains how to prepare a stream with an encoder. OBS describes the building blocks in its quick start guide: a scene holds sources, and their position, size and order determine what appears in the output.
That is not the same as YouTube’s dual-format live option. The latter can provide a horizontal presentation in 16:9 and a vertical presentation in 9:16. It does not automatically make a two-camera or gameplay-plus-camera scene. You can compose multiple sources in OBS and, if appropriate, separately configure YouTube’s dual-format workflow. They solve different problems.
Before choosing a layout, ask what each panel adds. A two-person discussion benefits from similarly sized faces; a tutorial may need the screen capture to dominate while the presenter remains visible. More panels are not automatically clearer, especially on a phone. If a source carries no information the viewer needs, leaving it out can make the remaining content easier to follow.
Gather sources for the scene
List the inputs you want to show before building the scene. Common choices include a webcam, a second camera, a game, a window, a display capture, an image, text or a video capture device. In OBS, you add each input as a source, and you can use more than one source in the same scene. A camera is not mandatory: a screen demonstration with a small title panel can still be a split composition.
For a two-person conversation, for instance, you could use one camera source for each speaker and place them in equal panels. For gameplay with a presenter, use the game or game window as the main panel and the camera as a smaller picture-in-picture. These are layout examples, not guarantees about how any particular device or computer will perform.
Check how each source enters OBS. A USB webcam may appear as a video capture device; a game may be captured directly or through a window or display. If you use an external capture device, confirm that the computer recognises it before building the layout. Avoid adding a device merely because a tutorial uses it. Buy a camera, microphone or capture card only if your existing equipment cannot provide the input or sound you need.
Audio deserves its own check. A scene can show two cameras while using one microphone, or it can include sound from a game and a microphone together. Decide which voices and programme sounds should be heard, then check OBS’s audio meters while each source is active. If people speak from different positions, confirm that the chosen microphone can pick them up clearly; adding panels does not solve poor audio. For a single speaker who moves around, a lavalier microphone guide can help you think through whether a clip-on mic suits the job, but it is not a requirement for split-screen.
Write down the source list and the viewer’s main focus. It is easier to build a clean scene around a clear priority than to add every available input and then try to rescue the result with smaller panels. If the stream is a lesson, the screen content might be primary; if it is an interview, the speakers may deserve equal weight.
Connect OBS to YouTube
First confirm that your channel can go live. YouTube’s live-streaming eligibility help says the channel must be verified, must not have had live-streaming restrictions in the preceding 90 days, and the streamer must be at least 16 years old. Check the current official page for your channel and location rather than relying on an old setup checklist.
In YouTube Studio, open Create and choose Go live, then prepare the event in Live Control Room. For an encoder broadcast, open the stream settings that provide the server information and stream key. Labels can change, so use the current controls shown in your account. Treat the stream key like a password: enter it in OBS, do not show it in a screen capture, and do not paste it into a public chat or document.
In OBS, open Settings and then Stream. Select YouTube as the service, choose the available server option, and enter or connect the stream key as the interface permits. The exact sign-in and key workflow can vary with OBS and YouTube interface updates, so follow the current prompts rather than an old screenshot. Confirm that the selected service and the YouTube event belong together before starting the encoder feed.
A stream key grants access to the broadcast destination, not just a cosmetic setting. If it is exposed, replace it in YouTube Studio and update OBS before streaming again. For a long-running channel, keep a note of where the approved key is stored without putting it in a public scene, overlay or recording.
The stream is not public merely because the connection is configured. You still need to check the event’s title, visibility and other details in Live Control Room. A private or unlisted test is useful when you want to inspect the result without presenting it as the finished public broadcast. If the channel has not used encoder streaming before, allow time to confirm eligibility and find the relevant controls before a scheduled programme.
Create a scene and add sources
In OBS, create a scene for the layout you want. A scene is a named arrangement; you can make another scene for a different programme or camera combination without rebuilding the first. Give scenes names that make sense during a broadcast, such as “Two speakers” or “Game and presenter”, rather than leaving several copies with indistinguishable names.
Add sources one at a time using the plus control in the Sources panel. Choose the source type that matches the input: a video capture device for a camera, a game or window capture for compatible applications, or display capture when you need the whole screen. You can also add images and text for labels or a simple frame. The available source types and behaviours depend on your operating system and connected equipment.
After adding a source, make sure it is visible and the expected input is selected. If you add a camera but see a blank image, check that another application is not using it and that OBS has permission to access it. If you capture a screen, close or hide private information first. Capture only the application or display area the audience needs; notifications and open personal tabs can otherwise appear in the stream.
Source order matters. Items higher in the Sources list are drawn in front of items below them, so a background image should sit behind the video panels, and a presenter panel should sit above the gameplay if it is meant to overlap. If a panel disappears, check its visibility control and its position in the list before recreating it.
Keep the scene manageable. A simple two-source arrangement is easier to troubleshoot than a scene with many nested elements. If you need a title or border, add it after the video sources are working. If you are adapting a prerecorded programme rather than combining cameras live, the process differs; this guide on looping podcast audio and video in OBS covers a related OBS use case.
Arrange and preview the composition
Use the OBS preview as a working canvas. Select a source, drag it into position and resize it with its bounding box. To crop a source rather than scale the whole image, hold Alt while dragging an edge, as described in the OBS guide to sources. Cropping can remove empty space around a camera image, but check that it does not cut off a face, caption or important game detail.
For equal side-by-side panels, place one source in each half of the canvas and align their top and bottom edges. For picture-in-picture, keep the main source large enough to read and put the smaller source where it does not cover essential content. Check the result at the intended canvas and output shape, not only in a large OBS preview. A small label can look readable on your monitor but become too tiny on a phone.
Canvas resolution and output resolution are related but not identical choices. The canvas is the layout area in which sources are arranged; the output resolution is what OBS encodes for the stream. Choose settings that suit your sources, computer and available upload capacity. There is no single bitrate or resolution that is right for every connection. If you are streaming in India and need to estimate a suitable connection budget, see the YouTube Live bitrate guide for 1080p in India, then compare it with YouTube’s current recommendations and your measured upload capacity.
Frame rate also affects workload. OBS notes that 60 frames per second can demand more from a computer than 30 frames per second. If a static devotional image, talking-head discussion or study session does not need fast motion, test a lower workload before increasing settings. Watch OBS’s performance indicators during a rehearsal. A composition that looks neat but overloads the computer is not ready for a sustained broadcast.
Check the audio mix while previewing. Speak into each intended microphone and listen for clipping, echo or competing sound. If the game audio is too loud, viewers may not hear the presenter even though both sources are technically present. Confirm that the intended desktop and microphone devices are selected, and mute inputs that should not be included. For video that is already recorded, audio synchronisation can be a separate issue; this guide to fixing audio out of sync in a prerecorded YouTube stream explains that problem.
| Layout | Good fit | Check before you use it |
|---|---|---|
| Equal side-by-side panels | Two speakers or two equally important views | Whether both panels remain legible on a phone |
| Main panel with picture-in-picture | Gameplay or a screen demo with a presenter | Whether the smaller panel covers a control or caption |
| Stacked panels | Portrait-oriented viewing or a layout designed for a narrow canvas | Whether text and faces have enough room |
| Multiple small panels | A comparison or monitoring view where every source matters | Whether viewers can still identify the main focus |
These are starting points, not fixed templates. For a local news loop, for example, a presenter and a map may need different proportions from two equal camera feeds. Try the intended content in the preview, because a layout that works with a blank test image may hide useful details when the real source appears.
Choose between a split scene and dual-format streaming
YouTube’s dual-format feature addresses the shape of the viewer’s presentation, not the number of sources in your scene. YouTube describes simultaneous horizontal and vertical live formats, with horizontal at 16:9 and vertical at 9:16. In the default arrangement, the vertical presentation is a centre crop of the horizontal feed; YouTube also describes options such as fitting to phone width or stacking content in its dual-format live-stream help.
If your aim is to show two cameras side by side, compose those panels in OBS. If your aim is to give viewers a vertical presentation in the Shorts feed while other viewers see horizontal, investigate YouTube’s dual-format controls. You may use both approaches, but one does not replace the other. A horizontal split-screen can crop badly into a vertical feed, especially when the important information sits at the left and right edges.
For encoder-based editing of both formats, YouTube says to select Encoder and use RTMP(S), then send the matching presentation to the appropriate stream key. Its guidance says the vertical format cannot be added after the stream has started. Configure and preview both layouts before going live; do not assume the crop will preserve faces, captions or screen controls. The formats share one live URL and chat, while viewers can receive the presentation suited to their viewing context.
| Your goal | Workflow to consider | Main trade-off |
|---|---|---|
| Put two cameras in one picture | Build a multi-source OBS scene | You control composition, but must check each panel’s framing |
| Show gameplay and a webcam together | Capture both sources and layer them in OBS | The overlay can obscure game details if placed poorly |
| Offer horizontal and vertical viewing formats | Configure YouTube’s dual-format live workflow | You must prepare and preview both shapes before starting |
| Do both | Compose the sources and check the horizontal and vertical outputs | One layout may not translate cleanly to the other |
Choose based on how people will watch and what they need to see. If most of the scene is a wide screen capture, the vertical presentation may need a separate arrangement rather than a centre crop. If you only need a multi-panel horizontal programme, there is no need to turn on dual-format streaming just because the word “split” appears in a search result.
Go live and check the result
Before the public broadcast, run a test. Start the OBS encoder feed and wait for the event preview in Live Control Room. Check that YouTube receives the intended scene, not a desktop or a blank source. Verify that sound reaches the stream and that each panel is in the expected position. A short private or unlisted rehearsal can reveal problems that are easy to miss while concentrating on OBS.
Check the event details and audience settings before starting the public programme. Confirm the right title, visibility and scheduled event, and make sure the stream key is for that event. If there are two versions of a layout, select the intended scene in OBS before you begin. YouTube’s and OBS’s controls can change, so use the current interface to start and end the broadcast rather than assuming a button is in its old location.
During the stream, keep an eye on source visibility, audio balance and OBS performance indicators. If a camera feed freezes, decide whether to switch to a prepared fallback scene or remove the panel. If frames are being dropped or the encoder is overloaded, reduce the workload or simplify the scene rather than adding more effects. OBS’s guide to streaming settings provides current technical guidance; test the settings on your own system and connection.
For a one-off event, your computer must remain available for the encoder session. If the actual problem is keeping a file-based channel running after your computer is switched off, that is a different workflow: StreamNeo turns an uploaded video into a YouTube live stream, so you do not have to keep a local OBS session running for that file-based broadcast. It does not replace OBS for a live multi-camera composition, and it is YouTube-only.
When the programme is finished, end the broadcast through the current Live Control Room workflow and confirm it has stopped. If you plan another session, review what failed or was hard to read: a cropped face, unbalanced audio or overloaded encoder is easier to fix in the scene than during the next live programme. Keep the useful scene as a starting point, but test it again whenever sources, output settings or the room setup change.
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
How do I put two cameras side by side on a YouTube livestream?
Add each camera as its own source in an OBS scene, then resize and position them to occupy separate parts of the canvas. Check source order, framing and audio before connecting the encoder feed to YouTube. Test the result in Live Control Room before making it public.
How do I show my webcam and gameplay at the same time?
Add the game or game window as one source and the webcam as another, then place the webcam over an area that does not hide important game information. Keep the game as the main panel if it is the focus, and test both the image and sound. You do not need a capture card for every gameplay setup; the appropriate capture method depends on the game and computer.
Is split-screen the same as YouTube’s vertical and horizontal live option?
No. Split-screen here means combining multiple sources into one scene, usually with OBS. YouTube’s dual-format option provides horizontal and vertical presentations; configure it separately if viewers need both shapes, and preview the vertical layout before starting.
Do I need paid software or new equipment?
Not necessarily. OBS is a free option for composing sources, and you can start with inputs your computer already recognises. Add equipment only when it solves a specific problem, such as needing another camera input or clearer microphone audio.