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Microphone & Waveform Visualizer

Test your microphone level, inspect the real-time frequency spectrum, and verify audio quality locally.

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What is Mic Test?

Mic Test is a browser-native microphone diagnostic tool that measures audio input levels, frequency response, and microphone sound quality in real time using the Web Audio API.

Features include live decibel metering, audio spectrum visualizer canvas rendering, multi-channel microphone selection, and instant voice playback tests for headset and studio microphones.

Whether you are setting up your microphone for podcasts, gaming voice chat, or online meetings, Mic Test verifies your microphone status without installing extra driver software.

Privacy Guarantee: Audio streams are processed 100% locally in browser memory via Web Audio API. Audio recordings are never uploaded or stored.

Frequently Asked Questions

Are my voice recordings or mic audio uploaded anywhere?
No! Audio stream analysis and visualizer rendering are performed 100% client-side in browser memory via HTML5 Web Audio API. No sound files are ever saved or transmitted.
Why is there no sound visualizer movement when I speak?
Ensure your microphone is plugged in, selected in the "Select Microphone" dropdown, and that your browser has been granted microphone permission in site settings.
How do I test different microphones or USB headsets?
Use the input device selector to switch between internal microphones, USB headsets, or external audio interfaces while watching real-time decibel level bars.
How does the Web Audio API visualizer measure frequency response?
We instantiate an AnalyserNode connected to your MediaStreamSource, analyzing Fast Fourier Transform (FFT) frequency bins to render live audio bars.
Does this mic test work on mobile Chrome and Safari browsers?
Yes! Fully compatible with desktop and mobile web browsers supporting HTML5 MediaDevices and Web Audio API standards.

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