How to Troubleshoot and Fix Chromebook Microphone Issues

Check hardware switches and connections

Before touching software, rule out the simple causes. On most Chromebooks, the top row of keys includes a microphone mute key, marked with a small crossed-out mic icon. Press it once to unmute, and check whether the indicator light on the key or chassis changes. A loose headset plug can also confuse the input, so unplug any external microphone or headset and try the built-in mic.

If you are using a headset, test with a different headset or the built-in mic. For models with a physical privacy switch, confirm it is not covering the mic. For more on the hardware behind microphones, see our overview of Chromebook microphone arrays.

• Press the mute key again to toggle, and check the on-screen notification.
• If you are using a headset, unplug and replug it, then check the headset's own mute control.
• Try the built-in mic without any headset connected to rule out the external device.

Check microphone permissions in ChromeOS

ChromeOS keeps a per-app microphone permission list. Open Settings and search for Microphone, or go to Privacy and Security and choose Microphone. You will see apps that have requested microphone access. If an app is missing or set to Block, turn it on. Android apps installed from the Play Store appear here, and so do web apps that run as standalone windows. If you cannot find the app you are using, it may not have asked for the mic yet, so it will prompt you when you first use it.

After changing a permission, close and reopen the app. If the app was open when you changed the setting, it may not register the new permission until you restart it. You can also revoke the permission for any suspicious app to keep your mic private. For more on how microphone quality affects calls, read our guide to Chromebook microphone quality.

Allow the microphone in specific web pages

When you use Google Meet, Zoom web, or any online voice tool in Chrome, the site asks for permission to use your microphone. If you clicked Block earlier, Chrome will not ask again until you change the setting. To fix it, open the site, click the padlock icon at the left end of the address bar, and select Site settings. Find Microphone in the list and choose Allow. Reload the page and try again. Some sites also have a mute toggle in their own user interface, so check that the site is not muted inside the call controls.

Select the correct input device and test levels

ChromeOS routes audio to whichever device you connected. If you use a headset with a microphone, the system may switch its input to that headset. To confirm, open Settings and go to Device, then Audio. Under Input, you will see a list of microphones and an input volume slider. Make sure the volume is not at zero and the correct input is selected. To test, open an app that uses the mic, such as a voice typing tool, and speak. You should see the input meter move.

If you see multiple input devices, select the built-in microphone and test again. Try the external headset after unplugging and replugging it. You can use voice typing as a quick mic test; if voice typing picks up your words, the microphone is working at the system level.

• Switch the input volume to about halfway and test with a short recording.
• If the input meter moves but the site still shows no audio, check the site's own mute button.
• For video calls, close other apps that may be using the microphone simultaneously.

Update ChromeOS and restart

A software bug in the audio stack can sometimes disable the microphone after a sleep/wake cycle or after a version update. ChromeOS automatically checks for updates and downloads them when it is online, but you need to restart to finish the update. Open Settings and select About ChromeOS. Under Google ChromeOS, click Check for updates. If an update is available, let it download and then restart your Chromebook.

Plug your Chromebook into power before updating so the battery does not drain mid-install. After the restart, test the mic again. If your Chromebook is managed by a school or company, your administrator may control when updates are applied, so contact them if the update button is disabled.

Enable microphone access for Linux apps

Linux applications, including audio editors and voice chat tools, need a separate microphone permission in ChromeOS. By default, Linux runs in a sandbox and does not have access to the mic. To turn it on, open Settings, select About ChromeOS, then Developers, then Linux development environment. Turn on the option that allows Linux to access your microphone. After you change the setting, restart the Linux terminal or the whole Chromebook so the change takes effect.

If you are not using Linux, you can leave this permission off to reduce the number of apps that can access your mic.

Reset or recover the system

If the microphone still fails after checking permissions, changing input devices, and updating ChromeOS, a system reset may clear a stuck audio state. You can start with a simple restart, then move to a Powerwash, which restores the operating system to factory settings but keeps your Google files in the cloud. Open Settings, go to Advanced, then Reset settings, and choose Powerwash. This will remove your local downloads and apps, so back up anything important first.

If a Powerwash does not help, a full recovery using a recovery USB drive will reinstall ChromeOS from scratch. This erases everything on the internal storage, so it is a last resort. You can read more about the difference between the two in our Powerwash versus recovery guide.

Recognize hardware failure and decide on repair

If you have tried every software step and the microphone still produces no audio, or only a distorted signal, the physical microphone array may be faulty. Over time, mic solder points can loosen, or debris can block the small holes around the display bezel. Clean the mic holes gently with a soft brush. If that does not help, contact the manufacturer or a repair shop. Opening a Chromebook yourself can void the warranty, so check your model's warranty length first.

If you rely on a Chromebook for video calls and want the strongest out-of-the-box audio experience, look at a Chromebook Plus model. Google advertises advanced noise canceling and built-in studio effects for calls on that line. These models also guarantee at least 8GB of RAM and 128GB of storage, which helps keep video conferencing smooth. You can compare options in our best Chromebook Plus guide.

What to pick next if you decide to replace or upgrade

Questions

Why is my Chromebook microphone not working in Google Meet?

Check the site permission for meet.google.com first. Click the lock icon in the address bar, choose Site settings, and set Microphone to Allow. Also confirm the in-meeting mute button is off and your Chromebook's mute key is not active.

I accidentally blocked the microphone in Chrome. How do I unblock it?

Open the site, click the lock icon, select Site settings, find Microphone, and choose Allow. Reload the page, and the site will ask again.

Do I need to give separate permission to Linux apps?

Yes. Linux apps run in a sandbox and cannot access the mic until you turn on Allow Linux to access your microphone in Settings under About ChromeOS, Developers, Linux development environment.

Will updating ChromeOS fix my microphone?

It can. ChromeOS automatically downloads updates, but you need to restart to complete them. If a bug in a current version is causing the issue, an update may include the fix. Check for updates in Settings and restart.

My microphone worked earlier but stopped after a sleep/wake cycle. What should I do?

Try restarting the Chromebook first. A stuck audio service is a common cause. Then check that the correct input device is still selected in Settings under Device and Audio.

Can I use an external microphone with a Chromebook?

Most Chromebooks support a headset jack or USB microphone, but the input options vary by model. Plug in the external mic, then select it in Settings under Device and Audio. If it does not appear, the port or the mic may not be compatible.