ProbeSlate’s Browser-Based Microphone Detective

Why it surfaced

ProbeSlate turns a familiar audio nuisance into a specific browser test, looking for harmonic patterns without uploading microphone audio. Its methodology page also explains what the measurement can—and cannot—prove, which is a welcome change from the usual black-box pass/fail widget.

A focused audio diagnostic that checks microphone recordings for persistent 50/60 Hz mains-like buzz and hum.