For the best video call experience, optimize all four areas: Audio: use a headset with a boom mic (not laptop speakers) and set mic gain so your voice peaks around -15 to -10 dB without clipping. Enable noise suppression in your meeting app. Video: face a light source, sit 2 feet from the camera at eye level, and enable HD in your app if bandwidth allows. Network: use Ethernet, close bandwidth-heavy apps, and verify latency under 100ms and upload above 3 Mbps before joining. System: close unnecessary apps to free CPU and RAM, disable desktop notifications, and make sure your OS and meeting app are updated. Run a pre-call test 2 minutes before to verify mic, camera, speakers, and network all work. Keep your meeting app's device settings pointing to the specific devices you tested, not "Default System," to avoid surprises when you plug in new devices.
Sources