HP LT4200 42 inch Professional LCD HDTV - Manual (Page 42)

32
HP HDTV User’s Guide
Using the Audio Menu
The Audio menu sets the sound levels, the mode for the
digital audio output signal, and sound items.
Adjusting the audio
■
Mode sets the audio adjustments to preset values
of Voice, Standard, or Music, or to User. User
mode enables individual adjustment of the treble
and bass values.
■
Balance sets the distribution of sound between
the speakers.
■
Auto Volume turns automatic volume adjustment
on or off.
■
SAP/MTS selects the default mode and language
for secondary audio programs. See “Setting the
SAP/MTS stereo mode” on page 27.
■
Digital Audio sets the mode for the signal
provided on the digital audio output connector.
See “Choosing the digital audio output mode” on
page 32.
■
Virtual Surround selects an option for emulated
surround sound from the TV speakers. “Selecting
virtual surround sound” on page 32.
■
Speaker turns the TV speakers on or off. You may
want to turn off the TV speakers when you connect
an optional external sound system. Refer to
“Understanding audio output” on page 32.
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.
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 menu Options
Mode Voice/Standard/Music/User
User mode options are:
■
Treble
■
Bass
Balance (Left-to-right sound
adjustment)
Auto Volume On/Off
SAP/MTS ■
Mono/Stereo/SAP
■
English/French/Spanish
Digital Audio Dolby Digital/PCM
Virtual Surround Off/Theater/Music Hall
Speaker On/Off