Apple LED Cinema Display (27 Zoll) - Manual (Page 10)

10 English
Setting Up Sound Input and Output
You can listen to music, movies, games, and multimedia files through the speaker
system on your display. You can use the microphone to record sounds, or talk with
friends using iChat. Use Sound preferences to manage sound input and output.
To set up sound input:
1 Choose Apple () > System Preferences, and then click Sound.
2 Click the Input tab in Sound preferences.
3 Choose Display Audio to input sound through your display’s microphone.
To set up sound output:
1 Choose Apple () > System Preferences, and then click Sound.
2 Click the Output tab in Sound preferences.
3 Choose Display Audio to hear sound through your display’s speaker system.
If your Mac computer supports sound output through the Mini DisplayPort in addition
to the USB port, you can choose either Mini DisplayPort or USB Audio for audio output.
These sound settings are used whenever your computer is connected to your display.
They remain in effect until you change them.