Preferences: Audio

Audio input device (microphone)

Specifies which microphone or other audio input device to use. Choose Auto to use the Windows default audio device.

Test Audio Devices

Lets you verify the audio input and output devices you've specified.

Audio output device (speakers)

Specifies which speakers, headphones, or other audio output device to use. Choose Auto to use the Windows default audio device.

Alerts

Specifies the audio output device to use for ring tones and alerts. Choose Auto to use the Windows default audio device.

Echo cancellation

Specifies whether to cancel the echoes caused when microphones pick up sounds coming from the system's speakers.

Device Echo Cancellation
Headset None
Windows XP or Vista Internal
Echo cancellation provided by an external device External