Test your microphone level
Allow microphone access, speak at normal call volume, and inspect live RMS and peak dBFS. The selected input format and browser processing settings are shown; raw audio stays in this tab.
What this tool checks
The tool requests a real audio track, calculates RMS dBFS from 2,048-sample windows, watches for clipping, and reads the browser-reported sample rate, channel count, and processing settings.
How to use the microphone test
Start the test, speak at the volume you would use on a call, and watch for the meter to move. If it stays flat, check browser and operating-system permissions, then choose the intended input device.
A useful working range
For a normal voice test, a relative reading around -20 dBFS to -10 dBFS is a useful working range. Very low readings can sound quiet; readings that remain close to 0 dBFS can distort.
What Dadaphone does not record
This test does not save or send the microphone stream. Dadaphone only uses your microphone when you choose to start a call.
Limits of this tool
The dBFS estimate is not a calibrated sound-pressure measurement. It cannot diagnose a faulty microphone, headset cable, or the other caller’s audio.
Questions before you call
Why is my microphone meter not moving?
The wrong input may be selected, another app may hold the device, the mic may be muted, or permission may be blocked in the browser or operating system.
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