HP LC3772N User Manual page 42

Choosing the digital audio output mode
You must be watching a digital TV channel to access
the Audio menu Digital Audio option. This option sets
the format for the signal provided on the Digital
(Optical) Audio Output connector on the rear of the TV:
Dolby Digital or PCM. Select PCM if your external
digital audio system does not support surround sound.
See "Understanding audio output" on page 32.
Selecting virtual surround sound
You can enjoy emulated surround sound from the TV
speakers. To do so, in the Audio menu Virtual Surround
option select the mode that you want to hear: Theater
or Music Hall.
Input source
TV tuner, analog channel
TV tuner, digital channel
HDMI, PCM format
HDMI, Dolby Digital
format
Component
AV (S-Video or Video)
PC Audio
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HP HDTV User's Guide
Audio output at
TV speakers
(Audio menu/
Speaker: On)
Stereo 2-channel
Stereo 2-channel
Stereo 2-channel
None
Stereo 2-channel
Stereo 2-channel
Stereo 2-channel
Understanding audio output
The input source signal and the Audio menu settings
for Digital Audio and Speaker determine the type of
audio output that you hear at the speakers, or at the
external sound system connected to the TV.
For example, if you connect an external sound system
by using the Digital (Optical) connector, you hear
digital sound from the connected external audio system
when you watch a digital TV program. The format of
digital signal that the TV provides depends on the
Digital Audio setting (Dolby Digital or PCM).
This TV does not support Dolby Digital audio input over
HDMI. When connecting a set-top box, DVD player, or
other device by means of HDMI, set the device audio
output to PCM format.
The following table shows the audio output
dependencies and the resulting output.
Audio output at Digital
(Optical) connector: (Audio
menu/Digital Audio)
PCM
PCM or Dolby Digital
None
None
PCM
PCM
PCM
Audio output
at Analog L
and R
connectors
Stereo 2-channel
Stereo 2-channel
Stereo 2-channel
None
Stereo 2-channel
Stereo 2-channel
Stereo 2-channel