Chrome's microphone settings live at chrome://settings/content/microphone. That page lists blocked and allowed sites and sets the default input Chrome hands to every tab.
Chrome Microphone Test: step by step
- Start the test
Press Start test above. Chrome shows a permission bubble under the address bar. Choose Allow.
- Check the site permission
Click the icon at the far left of the address bar. Microphone should read Allow. If it reads Block, change it and reload.
- Set the default input
Open chrome://settings/content/microphone. The dropdown at the top selects which microphone Chrome hands to every site.
- Look for the recording indicator
Chrome shows a dot in the tab and a camera icon in the toolbar while a page is capturing. No indicator means capture never started.
- Test in an incognito window
Extensions can hijack audio devices. If the microphone works in incognito, disable extensions one at a time to find the culprit.
Chrome microphone fixes
- No permission prompt appearsThe site is already blocked or already allowed. The address-bar icon shows the current state and lets you reset it.
- Blocked by an administratorManaged Chrome installs can enforce audio policy. Check chrome://policy for AudioCaptureAllowed.
- Wrong microphone every timeChrome remembers a per-site device choice. Reset the site permission and pick the device again on the next prompt.
- Sound is heavily processedChrome applies echo cancellation, noise suppression and auto gain by default. Turn all three off in the console above for a raw signal.
- Nothing works on HTTPChrome only allows microphone access on HTTPS or localhost. On any other origin the API silently fails.
How Chrome remembers permissions, and why prompts vanish
Chrome stores microphone permission per site, along with which device that site should receive. Once you answer the prompt it is not asked again, so a site blocked by a hurried click stays blocked silently, and a site pinned to an unplugged headset keeps receiving nothing.
The icon at the left of the address bar is the reset switch for both. Clearing the permission there and reloading brings the prompt back, letting you grant access and pick the correct device again. Incognito windows never remember, which makes them a useful way to test whether an extension is interfering.
Questions people ask
Does the test work in Edge, Brave and Opera?
Yes. They share the Chromium engine, so the permission model and audio path are the same.
Why does the microphone stay active after a call?
A tab is still holding the stream. Close the tab or press Stop in the console to release the device.
Can extensions record without asking?
Extensions require their own declared permissions, which are shown at install time and listed on the extension's page.
Does Chrome change the sound of my mic?
Yes, by default. Its processing chain is designed for calls and can be disabled per site through the toggles above.
Related tests
If that was not it, try: the Chromebook guide, the macOS permission fix, or testing a Mac microphone.
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