Firstly, make sure you are on the latest version of the Chrome Browser.

Second, make sure you allowed access to your  microphone from  Google Chrome.

To check this visit Settings > Advanced Settings > Content Settings >  Microphone

Here is a direct link:
chrome://settings/content/microphone

Next is to make sure you your Mac or PC operating system is properly connecting to your microphone.


Connecting Your Mic on a Mac
Also see
http://support.dubb.com/general-faqs/microphone-connection-issues-on-mac-mojave
To change the input in your Mac visit System Preferences > Sound > Input.  Alternatively you can click CMD SPACE and search for Sound.

On this page make sure you specify what your input should be. If you are using a bluetooth or external mic you can specify this here.

Connecting Your Mic on a PC

On a PC follow these steps:

-Right-click the sound icon in the taskbar
-Select Open sound settings
-Choose Sound control panel on the right
-Select the Recording tab
-Choose the microphone

You can also search for Sound in your apps.

If you have any issues don’t hesitate to contact us via chat.

To install the Dubb Chrome Extension click here.

You can also manually select permissions to the extension through this URL chrome://settings/content/siteDetails?site=chrome-extension%3A%2F%2Fcomhknhgkhbecfolehchaemllofaeppb%2F