HP Firebird User Manual page 44

Audio (continued)
Symptom
Sound is only coming out
of two speakers.
Codec error messages
appear when certain
audio files are played.
Volume is very low or
unsatisfactory.
40 HP Firebird Desktop Essentials (Features may vary by model)
Possible solution
Ensure that all speakers are connected into the correct audio
connectors. If they are, use either your sound card software or the
Windows Audio Controller (located in the Control Panel) to set your
speakers to the appropriate settings: 2.1, 4, 4.1, 5.1, or 7.1.
Open the file in Windows Media Player. Ensure that Windows
Media Player is configured to automatically download codecs.
If the correct codec is available, the file will play. Note that
you must be connected to the Internet to download codec files.
If the correct codec is not available, check whether an update
is available for Windows Media Player.
For more information, open Windows Media Player Help and
search for codec.
Detached non-powered speakers (speakers without a separate
power cord) do not produce satisfactory sound. Replace the
non-powered speakers with powered speakers. Powered speakers
have a power cord and On button, and they connect to the Audio
Out connector on the back of the computer.