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Online Oscilloscope – Live Microphone Waveform Viewer

Live waveform
Level–dBFS

Ready

RelatedRelated tools
Good to knowTips
  • Allow the mic in the address bar
  • Choose the right input device
  • Audio never leaves the tab
PrivateStays on device
  • Runs inside your browser
  • No upload, no account
  • Nothing saved after you close

Microphone waveform viewer

An oscilloscope draws the signal amplitude over time. Pure tones look like smooth waves, voices look complex.

By the SoundsChecker team · Reviewed 2026-11-04 · How we test

Waveform basics

Amplitude is height, frequency is how many cycles fit in the window.

Clipping

Flat tops mean the input is overloaded; lower the mic gain.

How to test

How to Use the
Oscilloscope

  1. 01

    Start

    allow microphone access.

  2. 02

    Sound

    play a tone from the tone generator on another device.

  3. 03

    Watch

    the wave shape shows sine, square or noise.

  4. 04

    Check

    flat-topped waves mean clipping.

Waveform basics

Amplitude is height, frequency is how many cycles fit in the window.

Clipping

Flat tops mean the input is overloaded; lower the mic gain.

Related guides and fixes

Learn more in these guides: Microphone not working, Microphone settings, Discord mic fixes, Decibel levels chart, What is LUFS.

Frequently Asked Questions

Q.Why does my wave look noisy?

Room noise and mic processing.

Q.Can I freeze it?

Press stop.

Q.Is audio stored?

No.

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