Single-PC streaming setup

Who this setup is for

This setup is for gaming or desktop content where the application and OBS run on the same computer. This guide starts with how everything connects, because a list of popular gear can’t tell you whether the parts will work together.

You usually don’t need a capture card for a game running on the same computer. Enter your computer, its ports and the gear you already own in the setup builder, and sort out every port, cable and software setting before you buy anything around them.

Start with the smallest setup that works. A Stream Deck, a second light, a better camera or a mixer can make streaming easier, but none of them fixes a missing port, an unsupported mode or sound that loops back on itself. Add extras only once the basic setup records cleanly.

How it all connects to one PC

The game or application is captured inside OBS, while camera USB and microphone USB or interface USB connect directly to the same computer. OBS owns the program mix, recording tracks and stream output; the monitor or gaming display stays connected to the graphics system.

Write each link down as device output → cable → input → OBS source → where it goes, with the plug type and the speed it needs beside each cable. A USB-C plug is only a shape; it doesn’t tell you whether the port has USB 3 speed, video, charging power or works with your device.

If you use a capture card, keep capture and passthrough apart. Capture is what your streaming computer gets; passthrough is what your TV or monitor gets from the card’s HDMI out. A card can pass through a higher mode than it captures, so don’t copy the bigger passthrough number into your recording settings.

The gear, piece by piece

Work through these in order. Each one either clears something that would stop the setup working or settles something the later steps depend on.

• Render headroom: Check CPU/GPU load with the game, encoder, camera and normal background apps running together.
• Game capture: Use OBS Game Capture for a game on the same PC; use Display Capture only when the game needs it.
• Camera: Choose resolution and frame rate for the scene size rather than the camera headline maximum.
• Voice path: Pick direct USB for simplicity or XLR plus interface for the routing and input path you specifically need.
• Monitoring: Monitor at the microphone/interface where possible and avoid monitoring the OBS program back into desktop audio.
• Track plan: Decide which sources must be combined live and which should remain separate in a local recording.
• Control: Map only live-critical actions such as mute, scene, record and marker; folders can hold setup actions.
• Upload/output: Set platform output from sustained upload and leave headroom for the rest of the household.

Check before you buy

Once you’ve drawn the setup, run the pre-stream checklist. Check the exact model, your computer’s operating system, the port’s speed and the platform you stream to.

Match each model’s suffix and generation to its manual. If the maker doesn’t list a cable, mode, part or operating system you need for that exact model, treat it as unconfirmed, and pick something else if you can’t do without it.

• Computer load: A setup that is smooth on an empty scene still has to hold up while the real game runs and OBS encodes.
• USB topology: High-bandwidth camera and audio devices should be tested on known direct ports, especially when hubs are involved.
• Audio ownership: Every source needs one capture path and each monitor return needs one destination.
• Software versions: Confirm current OBS, device driver and routing-app support for the operating system.
• Recording storage: Measure free space and sustained write behavior for the chosen recording format.
• Output profile: Use the platform’s own published settings for your resolution and frame rate. Twitch and YouTube Live each publish a table.

Connect it in this order

Mount and power the equipment before connecting data cables. Leave slack at camera and microphone sockets, keep power bricks from hanging on ports, and label both ends of any cable that disappears behind the desk.

Connect one kind of device at a time: the display, then the capture card or camera, then the microphone and headphones, then controls. Check your computer sees each device before you open OBS, and pick each one by name rather than Default.

Build one scene and one headphone mix first. Record a test with your usual content and alerts, and add more scenes, effects and automation only once that recording has the right picture and every sound exactly once.

• Draw the setup and label every device, input, output and computer port.
• If you use passthrough, connect the TV or monitor first and check its picture before setting up capture.
• Plug the camera or capture card straight into a fast enough port on the computer, and choose a mode it supports.
• Connect the microphone or interface, then plug your headphones into the output you’ll listen on.
• Add OBS sources one at a time, and turn off any device or source sound that OBS would capture twice.
• Set OBS’s canvas, output resolution, frame rate and encoder for the platform you stream to.
• Make a test recording, play it back outside OBS, then do a private test stream.

Two ways to set it up

For a single-PC game stream, OBS Game Capture can take the game directly while a USB webcam and microphone enter as separate sources. That keeps HDMI and capture hardware out of a path that does not need them.

For a software tutorial, Window Capture plus a small camera scene and USB voice path may be sufficient. Separate microphone and application audio tracks in the recording when later editing matters.

If neither fits your setup, use the cable and port guide to work out each connection, then come back here. The OBS audio routing guide and the stream and VOD track guide cover the choices that most often change this setup.

If something doesn’t work

Change one thing at a time. Start at the first link in your drawing that isn’t working, rather than replacing the most expensive part; a test recording tells you whether the problem is in your setup or in the stream and network.

• Encoder overload: Lower the rendering or output workload, cap the game where appropriate, and retest the full scene.
• Duplicate game audio: Disable one of the global/source capture paths and keep the intentional instance.
• Camera disconnects under load: Move it to a direct suitable port and test USB bandwidth with all devices active.
• Clean local file, unstable destination: Inspect upload headroom and destination diagnostics without changing the proven local sources.

What to keep, and what to buy first

Start with the gear you already own. Keep anything whose ports and modes cover what you need. If one thing you need is unconfirmed, keep it but test it; if it simply can’t connect, replace it.

Buy the parts that make the connections work before the ones that make streaming easier. In this setup, that usually means a computer fast enough to play and stream at once, or game capture that works. A second light, a bigger Stream Deck or a higher camera mode can wait, unless the list above shows it’s what is actually missing.

Match every product label, suffix and generation to its profile here and its manual. Models with similar names can differ in cables, software, mounts, computer requirements, inputs and capture modes; if a part isn’t listed as included, budget for it separately.

Enter today’s prices as you put the setup together. Compare the cost of the whole setup, including microphone, headphones, cables, power and mounts, with keeping what already works. Buy an upgrade only when it fixes a specific problem: a missing connection, a step that slows you down, or something unreliable.

Five tests before going live

Test with everything connected, once the computer is as busy as it is during a normal stream. A quick preview doesn’t show heat, power saving, a USB port under steady load or the full sound you send back to a guest.

Make your first test stream private or unlisted if the platform allows it. Watch it on another device, with the volume low enough that the sound doesn’t reach your microphone.

Once it works, save your OBS profile and scene collection, and note the device names, which port each device uses, the output settings and any delay or audio routing you set. If a later change breaks something, put back one working setting at a time.

You’re ready only when everything passes together. If something works only with a particular mode, port or workaround, stick to exactly that; if something can’t connect at all, you’re not ready to go live.

Check the OBS Stats counters if the test stream stutters or OBS shows dropped frames.

• Record several minutes of movement and speech; check the picture is smooth, your voice matches your lips and no frames drop.
• Listen in your headphones and in the recording; check each sound is there once and that mute works.
• Use your real TV or monitor resolution, refresh rate and HDR setting, and check capture stays stable.
• Try scene changes, alerts, guest audio and every key or shortcut you’ll use on stream.
• Do a test stream with upload speed to spare, and watch it on another device.

Load this setup and swap your gear

Load an editable example with Wave Neo microphone and Facecam Neo webcam in the setup builder. These are starting choices, not a purchase list. Swap a device in Your gear and check the new connection requirements.

Equipment for these connections

Start with the kind of gear you’re missing, and read its full profile before adding it to your setup.

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Settings for the platform you stream to

Once it is wired, each platform’s own figures for bitrate, keyframes and audio, with the date we checked them: Twitch · YouTube Live · Kick · Facebook Live · TikTok LIVE. The bitrate calculator gives the number to type into OBS for your output.

Going live for the first time? Follow the steps to stream on Twitch, go live on YouTube, stream on Kick, go live on Facebook or go LIVE on TikTok, from the account to ending the stream.