The Lync:Mac client enables users to communicate with each other through both audio and video. As such, it’s a good idea to tune the audio and video subsystems of the Macintosh that is running the client in order to optimize the experience for the user.
For those who might not be familiar with the Macintosh operating system, items such as audio and video are managed through System Preferences. This can be accessed either through the Dock (the icons displayed on the bottom of the screen) or by clicking the Apple logo at the upper-left corner of the screen and choosing System Preferences. When looking for System Preferences in the Dock, look for a grey square with a large gear and two smaller gears.