Make sure your microphone is picking up sound before a call, recording, or stream with a live input level meter. Click start and grant permission, then talk, tap, or clap, and watch the meter jump in response to how loud your mic hears you. If the bar stays flat while you speak, your mic is muted, unplugged, or the wrong input is selected. This is the fastest way to catch an audio problem before other people are waiting on the line. Nothing is ever recorded and no audio is sent anywhere; the level is calculated locally in your browser and the microphone is released as soon as you stop. Your browser will ask for permission the first time, which is expected, and you stay in full control of your audio.