Using Continuity Camera with OBS

The short answer

Continuity Camera lets a Mac use a nearby iPhone as a camera, and OBS Studio on macOS can capture it like any other camera. The video and the microphone are handled separately. To record or stream your voice from the iPhone, you add the iPhone's microphone as its own audio source in OBS. A camera source alone does not cover speech capture.

This only works on Macs. Continuity Camera is an Apple feature, and it depends on supported iPhone and macOS versions and on certain account and connection conditions. Check Apple's current requirements before you plan a setup around it. This guide does not include measured figures for audio quality or latency, because no tested evidence was available.

What Continuity Camera is

Continuity Camera is a macOS and iOS feature that turns an iPhone into a camera for a Mac. Once the conditions are met, the iPhone appears in the Mac's list of cameras. It also appears separately in the list of microphones. Apple documents extra video effects such as Center Stage, Portrait mode, Studio Light and Desk View, which are controlled from macOS. These change the picture, not the sound.

Adding the iPhone camera in OBS

• 1. Mount the iPhone in landscape orientation, keep it nearby and unlocked as Apple's requirements describe, and make sure it is not in use for something else.
• 2. In OBS, add a Video Capture Device source to your scene.
• 3. In the source's device list, choose the iPhone camera.
• 4. If the iPhone does not appear, check that both devices meet Apple's requirements. Reconnecting the phone or restarting OBS sometimes helps.

Continuity Camera can work wirelessly or with the iPhone connected by cable. Many users report that a wired connection is more dependable during long sessions, but this guide has no measured comparison to support that.

Capturing speech: adding the iPhone microphone

macOS lists the iPhone's microphone as a separate audio input device. To capture it in OBS:

• 1. Add an Audio Input Capture source.
• 2. Select the iPhone microphone as the device.
• 3. Speak at your normal level and watch the source's meter in the Audio Mixer. Adjust the fader so your speech stays clearly below the top of the meter, where clipping (harsh distortion from an overloaded signal) begins.
• 4. If you have another microphone, check that only one input is capturing your voice. Two active mics picking up the same voice can sound hollow or doubled.

Keeping voice and picture in sync

Because the camera and the microphone are separate sources, your lips and voice may not line up exactly. OBS has a Sync Offset setting under Advanced Audio Properties that delays an audio source to match the video. There is no universal correct value. Record a short test, such as a clap on camera, then raise the offset until the sound lands on the visible moment. Repeat the test if you switch between wired and wireless connections, since the delay may change.

Using OBS output in video calls

If you send OBS into Zoom, Teams or a similar app through the OBS Virtual Camera, keep in mind that it carries only video. The conferencing app still needs its own microphone selection. You can pick the iPhone microphone or another mic directly in that app's audio settings. Routing OBS's processed audio into a call requires a separate virtual audio device, which OBS does not provide by default on macOS.

Microphone modes and processing

macOS offers system microphone modes such as Voice Isolation and Wide Spectrum. Voice Isolation tries to reduce background noise around the voice, and Wide Spectrum keeps more of the surrounding sound. These modes are available only in apps that support them, and the evidence for this guide does not confirm whether they apply to OBS. If they are unavailable, OBS's own audio filters can do similar work:

• Noise Suppression reduces steady background noise such as fans.
• Noise Gate mutes the input between phrases.
• Compressor evens out loud and quiet speech.

Apply these filters gently and listen to the result. Heavy processing can make speech sound thin or choppy.

Practical limits for speech quality

Where the iPhone sits affects how your voice sounds. A phone mounted on top of a monitor is placed for the picture, not for the mic, and it is usually farther from your mouth than a headset or desk microphone would be. In general, a microphone picks up more room echo and background noise as it moves farther from the speaker. If your voice sounds distant or roomy, there are two straightforward options:
• Keep the iPhone for video and use a microphone placed closer to you.
• Soften the room with curtains or other soft surfaces.
This guide makes no claim about how the iPhone microphone compares with any specific webcam or microphone, because no test data was available.

Evidence gaps

The following points are not covered by evidence in this guide, so test them yourself or check current Apple and OBS documentation:
• Measured latency between the iPhone audio and video.
• Audio quality compared with other microphones.
• Whether macOS microphone modes work inside OBS.
• Exact system version requirements.