6–2 Hardware Guide
Audio and Video
Using the Microphone Jack
When connecting a microphone to the microphone jack, use a
single sound channel (monaural) microphone with a 3.5-mm
plug. A monaural electret condenser microphone is
recommended.
■
If you connect a stereo microphone, left channel sound will
record on both channels.
■
If you connect a dynamic microphone, the recommended
sensitivity may not be achieved.
When an external microphone is connected to the computer, the
computer microphone is disabled.
Audio Feature Function
1
Speakers (2) Provide stereo audio playback for multimedia
applications.
✎
When the computer is docked in an
optional docking base, the computer
speakers are disabled and system
sound plays through the docking
base speakers. For more
information, refer to the
documentation included with the
expansion base.
2
Volume buttons Adjust or mute system volume.
3
Stereo speaker/
headphone
(line-out) jack
Connects powered stereo speakers,
headphones, a headset, or an audio/visual
device such as a television or VCR.
4
Microphone Supports audio input whether the display is
open or closed; has a standard sensitivity of
-50 dB.
5
Microphone jack Supports a single sound channel (monaural)
microphone.
229045-002.book Page 2 Friday, September 21, 2001 11:16 AM
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