It’s likely that one of the users in the iSee environment near you is using an array microphone which is the type of microphone most modern notebooks are fitted with. These types of microphone devices generally are highly sensitive and pick up a lot of background noise which can be quite disturbing in an iSee session.Background noise can also be a problem when a user is using their Speakers as the default output device. We recommend that all users use external headsets with microphones for the best iSee experience.To help to identify the person with the background noise you can temporarily mute individuals around you by moving your cursor over their video avatar and clicking on the speaker symbol from the control bar that appears at the top of their video.Once you have identified who the noise is coming from you can either leave them muted if their audio is unimportant to you, or ask them to connect their headset microphone/check their audio settings to make sure their headset is selected. If they don't have a headset microphone you can ask them to go to 'Push to Talk' mode which they can activate using the button to the left of the mute button in the bottom centre of the iSee window, or the pull down menu at the top left of the iSee window, next to the microphone icon. This will mute their microphone unless they are holding down the 'T' key to talk.