Is our program saying it can't hear you? Do you not know how to connect your microphone to your web browser? Here is some information to help establish a connection with your mic.
Setting up your mic
Please select the microphone camera icon in your browser and select a microphone connected to your device. The built-in microphone may be a good option. The button for Chrome is shown below.
Mic tests for mobile
There may be a discrepancy with the settings in relation to the web browser you are using. Make sure that the app is has been updated to the latest version and that you have allowed the app to access your microphone and camera if you are on mobile.