Microphone Clipping Test

Speak at the normal level you plan to use. Do not shout to force a peak; the useful question is whether ordinary use is already too close to digital full scale.

Microphone

Near-full-scale threshold

Speak at the normal level you expect to use. Do not shout just to force a peak.

—Peak dBFS

—Current RMS dBFS

—Peak headroom

0Near-full-scale frames

Not startedAudio is analyzed locally and is not recorded or uploaded.

How to read the result

Digital clipping is about samples reaching the top of the browser-visible digital range. This page can show peaks and near-full-scale samples, but it cannot diagnose analog clipping that already happened inside a microphone, interface, or preamp before the browser received the signal.

PeakHighest absolute sample seen in this reset window.

HeadroomApproximate dB below digital full scale based on that peak.

Near-full-scale framesAnalyzer frames containing samples at or above the selected threshold.

RMSCurrent short-window level estimate, not calibrated acoustic loudness.

Basic Mic Test Audio tools

Device diagnostic workflow

Start with a functional check, measure only what the browser can actually expose, then retest after one change.

ConnectChoose the actual browser-visible device or grant permission when required.

TestConfirm basic signal, input, output, preview or display behavior.

MeasureUse browser-exposed levels, timing, resolution, FPS, axes or event data.

DiagnoseCompare the symptom with the focused diagnostic rather than guessing from one number.

RetestRepeat after changing the device, cable, permission, browser or system setting.

Pre-call Mic Webcam Keyboard Mouse Gamepad Display Permissions

Browser boundary
These tools observe browser APIs and local media/event streams. They cannot certify hardware condition, bypass denied permissions, or expose measurements the browser/OS does not provide.

What this tool checks

Measure browser-visible microphone RMS, peak dBFS, digital headroom and samples near full scale without recording or uploading audio.

How to use the result

Speak at the normal level you plan to use. Do not shout to force a peak; the useful question is whether ordinary use is already too close to digital full scale.

Privacy & browser limits

Device streams and input events used by this page are handled in your browser unless the page explicitly says otherwise. Permission, label, timing and hardware-field availability depend on the browser and operating system.