Microphone Test

Click 'START MICROPHONE TEST' to grant browser microphone access, then speak into your microphone while watching the live input meter and waveform.

When you speak, the live input meter will jump upward into the green (-24 dB to -12 dB) zone and the waveform canvas will display active speech ripples.

When prompted by your browser, click 'Allow'. If you previously blocked access, click the padlock/settings icon in the browser address bar and set Microphone to 'Allow'.

Check whether your microphone is plugged in securely, verify Windows/macOS privacy permissions have allowed apps to access the microphone, and ensure it isn't physically muted.

Increase input gain in your operating system's sound settings, move closer to the microphone capsule, or disable aggressive software noise gates.

Your operating system input volume or external audio interface preamp gain is set too high, pushing the signal into digital clipping.

Distortion occurs when sound waves exceed the capsule's maximum acoustic limit or when digital gain reaches 0 dBFS clipping. Lower input gain to eliminate distortion.

Clipping happens when the microphone input signal is too loud for the digital audio converter (ADC), lopping off the peaks of the audio waveform.

Clipping is digital saturation where an audio signal exceeds 0 dBFS (full scale), producing harsh square-wave distortion and audible crackling.

The noise floor is the level of continuous electrical self-noise and room ambient noise present in the microphone signal when no one is speaking.

Speak at a normal conversational volume while monitoring the input level meter. Ideal vocal peaks should land comfortably between -18 dB and -10 dBFS.

Click 'START RECORDING' in the recording panel, speak for a few seconds, click 'STOP RECORDING', and press the Play button to listen back to your voice.

Select your laptop's built-in microphone array from the device dropdown, speak toward the webcam, and verify the live level meter responds.

Plug the USB microphone into your computer, select its device name from the input list, and check both raw input levels and voice recording.

Position the boom microphone about two finger-widths away from the corner of your mouth to avoid breath pops, then monitor the input level meter.

Select your Bluetooth headset from the input device dropdown. Note that Bluetooth hands-free profile restricts microphone audio to 16 kHz sample rate.

Yes. This online tool uses the browser's native MediaDevices and Web Audio APIs to test your microphone without installing any drivers or extensions.

No. All audio capture, live metering, and test recordings are processed 100% locally in your browser. Nothing is ever sent to or stored on a server.

Only when you explicitly click 'START RECORDING'. The resulting audio sample is held in browser memory solely for your immediate playback and is never uploaded.

Recordings are stored as temporary in-memory Blobs in your browser tab. They are wiped clean as soon as you click Delete or close the page.

No. Calibrated acoustic sensitivity (mV/Pa) requires an acoustic calibrator producing a certified 94 dB SPL pure tone inside an anechoic chamber.

No. A laboratory frequency response curve requires an anechoic chamber, flat-response reference speakers, and precision measurement software.

No. The on-screen meter displays digital input levels in dBFS relative to digital clipping, not physical room Sound Pressure Level in dBA.

Yes. Microphone testing is passive audio input and is completely safe for all microphone hardware and connected computer components.