Using Eye Tracking in OBS: What It Is and What It Means for Your Webcam Audio

The short answer

OBS Studio does not include a native eye-tracking feature. To show where you are looking, or to change how your eyes appear on camera, you need separate hardware or software. You then bring its output into OBS as a source, such as a captured window, a browser source, a virtual camera or a plugin. Eye tracking also does not change how your microphone captures speech. The audio questions that come up are indirect: where you sit, how you set up your audio sources and whether your audio and video stay in sync.

Evidence note: no confirmed product specifications, compatibility lists, prices or test results were available for this guide. Statements about specific tools below describe general documented behaviour or reasoned inference, not verified measurements. Check any vendor's current documentation against your OBS version before you rely on it.

Two different things people call "eye tracking"

Searches for eye tracking in OBS usually mean one of two features. They work differently and solve different problems.

• Gaze overlay (true eye tracking): a tracking device or tracking software estimates where on the screen you are looking, and a marker or bubble is drawn there. Viewers see your point of focus, which is common in gameplay, tutorials and accessibility demonstrations. The overlay is a separate visual layer that you add to your OBS scene.
• Gaze correction (eye contact): software changes your webcam image so that your eyes appear to look into the lens even when you are reading the screen. It does not report where you are looking. It changes the video feed, which then reaches OBS, often through a virtual camera. Some GPU-vendor broadcast tools offer this feature, usually only on supported graphics hardware.

Accuracy depends on the method. Dedicated eye-tracking hardware is generally designed for gaze estimation. Software that infers gaze from an ordinary webcam has to work from a lower-quality signal, so its precision will vary with lighting, camera position and resolution. No measured accuracy figures were available to quantify this.

How eye tracking typically gets into OBS

• Window or display capture: the tracking software draws its overlay in its own window, and you capture that window in OBS, often with a transparent or keyed background.
• Browser source: some tools provide a local page that OBS renders as an overlay.
• Plugin: some tools install an OBS plugin that adds a dedicated source type. These plugins must match your OBS version, so check compatibility after each OBS update.
• Virtual camera: gaze-correction tools usually output a processed camera feed that you select in a Video Capture Device source instead of the raw webcam.

What this means for capturing speech

Eye-tracking and gaze-correction software works on video, not on the sound your microphone records. Your audio quality still depends on the microphone, where it sits relative to your mouth, and the room. Several practical side effects still deserve attention.

• Choose the audio input deliberately. If you replace the raw webcam with a virtual camera for gaze correction, the webcam's built-in microphone does not travel with that video feed. In OBS, add it separately as an Audio Input Capture source, or confirm which device the Video Capture Device source uses for audio. Otherwise you may end up with no microphone audio or the wrong microphone.
• Check audio/video sync. Video processing such as gaze correction can add delay to the image. If your lips appear to move after the sound, OBS's Advanced Audio Properties include a Sync Offset setting that delays the audio to match. Set it by testing a recording rather than guessing a value.
• Watch your position. Eye trackers and gaze correction work best when you sit within a certain range and face the screen. A webcam microphone is usually farther from your mouth than a headset or desk microphone, so it picks up more room sound. If tracking pulls you back from the screen or off-axis, voice pickup may get thinner or roomier. This is an inference from general microphone behaviour, not a measured result.
• Mind processing load. Running tracking software, video effects and encoding together uses more CPU and GPU. If the system is overloaded, OBS may drop frames or audio may glitch. Monitor OBS's stats and test with your full setup before you go live.

Next step

First decide whether you want viewers to see where you are looking (a gaze overlay) or want to appear to make eye contact (gaze correction). Then confirm that the tool you choose supports your operating system, hardware and current OBS version. Once it is set up, record a short test. Check that the correct microphone is active, that speech is clear at your normal tracking position, and that audio lines up with your lips before you stream or record for real.