To maintain control over your device’s microphone, it’s a wise practice to grant or deny microphone access on Mac to apps as needed. When access is denied, apps won’t have the capability to utilize your microphone. This precautionary measure safeguards your hardware and keeps it protected until needed, ensuring its integrity. Here are some related guides that may interest you: How to disable or enable FaceTime on Mac, and how to unlink FaceTime from Mac. When you disable app access, you must re-enable it the next time the app attempts microphone usage.
The Recording Indicator light in Control Center shows you when your computer’s microphone is in use or has been used recently. To enhance the security and privacy of your Mac, you can now easily manage app permissions for Microphone access. This feature ensures that you have control over whether to grant or deny Microphone access to various applications.
The indicator light illuminates when you access the Sound Input pane within the Sound System Preferences, providing you with a clear visual cue. This proactive approach empowers you to make informed decisions about your device’s microphone usage.
Some apps and websites can use the microphone on your Mac to capture or record audio. You can decide which apps are allowed to use the microphone. Kindly refer to these related guides: How to record your screen with PowerPoint and make slide shows, how to record the screen of macOS, and how to install and configure Jitsi video conferencing server on Ubuntu.
The provided screenshot reveals the deactivation of Microphone access for this specific website. Apple’s meticulous permissions framework occasionally restricts application access to the microphone unless explicitly permitted.
Whenever applications seek Microphone access, a notification will surface, prompting you to either grant or deny the request. This comprehensive guide aims to elucidate the steps for addressing this concern effectively.
Are you also experiencing the same issue on your iOS device, please see the following guide on how to resolve the issue: How to fix unable to access the microphone on Zoom“.
Enable Access to Microphone
To proceed, you will need to launch the System Preferences as shown below. There are a couple of ways to launch it, one of which is to choose the Apple menu 
> System Preferences, click Security & Privacy 
, then click Privacy.
Alternatively, you could search for System Preferences by clicking on the LaunchPad and then search for System Preferences as shown below. 
Click on System and Privacy as shown in the System preference Window below
On the sidebar, click on Microphone. You should see a list of apps that have requested access to your microphone. Approved Apps will have a checkmark next to them, while those that are denied will not.
Therefore, we have to grant access to Google Chrome!
Click on the Padlock to authenticate with your admin password. You will be required to enter your password to unlock the Security and Privacy Preferences.
I will have to check the box close to Google Chrome in order to approve Microphone access. When this is done, the window below will be displayed instructing you to quit and reopen.
In the Window displayed below, click on OK to enable access to Google Chrome
In the subsequent window, click on OK as well.
This will end the process of granting Microphone access to Google Chrome on Mac.
Deny Microphone Access on Mac
To deny this access, simply uncheck the box near Google Chrome, restricting access from now on.
To activate this setting, quit and reopen Google Chrome. This action is necessary for the changes to apply.
I hope you found this blog post on how to grant or deny Microphone access on Mac helpful. If you have any questions, please let me know in the comment session.