Cluster · Camera & microphone

Camera and mic checks.

Three checks over the same two devices, for three different jobs. One meters a microphone in detail. One shows what a camera is actually sending. One runs both at once and prints a single summary for the minutes before a meeting. All three run on your device, and none of them can see the far end of a call — no page without a server can.

• Call check

  Microphone Test

  Waveform, RMS and true peak, a clipping counter, record-and-playback, and a noise-floor to speech signal-to-noise measurement.

• Call check

  Webcam Test

  Live preview with the negotiated resolution and frame rate, a mirror toggle, and a freeze-frame for judging focus.

• Call check

  Video Call Test

  Both devices in one pass, plus a speaker-to-microphone bleed measurement and a summary that will not go green on machine evidence alone.