25
Dolby
*
Digital
e recommended audio format for HDTV is Dolby® Digital.
Your DIRECTV HD Receiver is capable of reproducing 5.1-encoded audio: fi ve discrete channels of
full-range digital audio, plus one channel of low-frequency (subwoofer) audio, for use by A/V receivers
capable of decoding the 5.1-channel signal. e audio signals are broken into left-front, center, right-
front, left-rear, right-rear and low-frequency channels. e result, when your DIRECTV® HD Receiver
is connected to a compatible Dolby Digital A/V receiver and 5.1 channel speaker setup, is an experience
that gives you much of the dynamic range, 360-degree imaging and sonic excitement of a real theater.
Not all TV programs deliver 5.1 channel signals, and not all programs are broadcast using Dolby Digital
for DIRECTV® programming. Programs using this high-quality audio standard are indicated by the
words Dolby Digital in the program description in the Channel Banner (see page 13) and the Guide (see
page 15).
To change the Digital Audio format, press MENU, select Help & Settings, then select Setup. Select
Audio in the left menu. Highlight the Dolby Digital tab and press SELECT, then follow the onscreen
instructions and select from the following options:
On: Turns on Dolby Digital audio ouput. (Note: True Dolby Digital is only available via HDMI or
optical outputs.
Off: Select this option to turn off Dolby Digital Audio output.
* “Dolby” and the Double-D symbol are trademarks of Dolby Laboratories.
Note
What is 5.1
Audio?
It’s 5 channels
of audio for
theater-style
sound, plus a
subwoofer for
heart-pounding
bass.
H21 User Guide.indb 25H21 User Guide.indb 25 9/19/07 9:32:10 AM9/19/07 9:32:10 AM
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