Mic Health Check
A 10-second recording diagnoses background noise, electrical hum, audio clipping, and even Bluetooth call quality drop. Check before recording or streaming.
Done in 10 seconds
- Stay quiet for 3 seconds — we capture background noise and electrical hum.
- Read the sentence on screen aloud in your normal voice for 7 seconds — we capture volume, clipping, and sound quality.
Recorded audio is analyzed only in this browser and never sent to a server. The microphone turns off as soon as the test finishes.
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The sound you just recorded
The first 3 seconds are the quiet period. Use earphones to hear the noise more clearly.
Device Info
Why does the recording sound odd? It's usually one of three things. Bluetooth earphone micsswitch to call mode the moment the mic turns on, producing muffled, phone-call-like sound. Laptop chargers · USB hubscreate an electrical "hum."
Raising Mic Boosttoo high in Windows causes loud audio to clip. This test detects all three numerically.