Using The Audio Menu; Adjusting The Audio - HP LT4700 User Manual

Using the Audio Menu

The Audio menu sets the sound levels, the mode for the
digital audio output signal, and sound items.
Audio menu Options
Mode Voice/Standard/Music/User
User mode options are:
■
■
Balance (Left-to-right sound
adjustment)
Auto Volume On/Off
SAP/MTS
■
■
Digital Audio Dolby Digital/PCM
Virtual Surround Off/Theater/Music Hall
Speaker On/Off

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.
32
HP HDTV User's Guide
Treble
Bass
Mono/Stereo/SAP
English/French/Spanish
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.