Click the Settings button on the oCam main screen.

After the Settings window opens, click the Recording tab on the left, check the Audio Device Settings checkbox, and select the device as WASAPI (loopback). (Since this is set as the default, it is recommended to leave it as is unless there is a special case.)

Go to Control Panel through the Start menu and click the Sound icon.

When the Sound Settings window opens, click the Recording tab to see the microphone item as shown below.

Select the microphone item, right-click it, and click Properties.

In the Microphone Properties window, click the Listen tab.

Check the “Listen to this device” checkbox, then click the Apply button.