Apple MacBook Air 13-inch camera or microphone is not working in calls

The checks in more detail

For voice, Mic Mode in Control Center lets you choose Standard, Voice Isolation or Wide Spectrum, and Voice Isolation can clip a quiet voice. Test the camera in Photo Booth and the microphone in Voice Memos; if both work, the problem is the app. Keep the lid fully open and remove any cover. If System Information does not list a camera, restart; if it still does not, contact Apple. On a managed Mac, ask the administrator about profiles that block devices. Update macOS. The Air's camera is a basic 1080p sensor with good processing, and its quality depends on light:

sit facing a window or a lamp, because a dim room makes the picture grainy and soft however the settings are set. Center Stage keeps you in frame as you move, and in a meeting with a fixed seat it can be switched off in Video Effects for a steadier picture. For calls with a poor microphone feel, use AirPods or a headset with the Mac's input set to it, and check Mic Mode so that Voice Isolation matches the room. Test every change with a short recording in Photo Booth and Voice Memos, comparing a take before and after, so that you know which change helped.

Many people use the Air in a café or a train, where a noisy background makes the microphone array struggle, and Voice Isolation is designed for exactly that; if colleagues report that you sound robotic, switch between Voice Isolation and Standard and ask them which sounds better. A wired or Bluetooth headset with a boom microphone beats any built-in array in noise. For video, use the Camera app's preview in System Settings, Displays or Photo Booth to check framing, and sit at arm's length so that the lens sees your face squarely instead of looking up at your chin. These adjustments raise quality more than any repair.