Multimedia; Using The Speakers; Using The Volume Controls - HP Compaq NX9600 Hardware And Software Manual

Using the Speakers

The internal speakers play sound in stereo from applications,
the operating system, games, drive media, the Internet, and
other sources.
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If an external device such as a headset is connected to the
headphone jack, the internal speakers are disabled.

Using the Volume Controls

Adjust volume with the volume buttons on the notebook. You can
also adjust volume using the controls in your operating system
and in some multimedia applications. The volume mute button on
the notebook overrides all software volume settings.
Hardware and Software Guide

Multimedia

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