Audio
Interactive · permission required · Runs in this browser
Request microphone access only after you press Start, then display a local real-time waveform, RMS level, peak level, selected device label when available, channel count, sample rate, and active stream settings. Audio is not uploaded or recorded.
Microphone test
See whether your microphone is detected and responding. Audio is analyzed live in this tab and is never recorded or uploaded.
Your browser asks for microphone permission only when you start. Stopping the test immediately releases the microphone.
Live RMS
0%
−∞ dBFS from the raw RMS samples
Peak
0%
Peak since the test started
Input device
Permission not requested
Press Start microphone to see a live input level and waveform.
Transparent method
This tool reports only interactions and browser APIs it can observe. It does not infer hidden hardware specifications or turn unsupported access into made-up results.
Useful context
No. The stream is analyzed locally in the browser and is stopped when you press Stop or leave the page.
Browsers commonly hide detailed media-device labels until the user grants access to protect privacy.
Troubleshooting
Keep checking