Cisco Explorer 8300 User Manual page 7

Important Note Regarding the HDMI Interface
The High-Defi nition Multimedia Interface (HDMI) is an all-digital audio and
video interface. HDMI provides a digital interface between any audio and
video source. HDMI supports standard, enhanced, or high-defi nition video,
plus digital audio.
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Some HDTVs do not contain circuitry to decode Dolby Digital formatted
content. If you connect your DVR to an HDTV that cannot support Dolby
Digital audio, the HDMI interface instructs the DVR to switch its audio outputs
to 2-channel PCM audio (to be compatible with the HDTV). In this case,
all digital audio outputs on the DVR are formatted as 2-channel PCM. As
a result, you will not be able to receive Dolby Digital or DTS audio on your
home theater system when connected to either the optical or coax (RCA
Connector) S/PDIF ports. You can avoid this by overriding the automatic
confi guration through the General Settings menu and switching the audio
output to Dolby Digital.
Important: If your HDTV cannot decode Dolby Digital formatted content
and you have confi gured the DVR to output in the Dolby Digital format, you
will not be able to listen to audio through the TV. Instead, you must use your
home theater or your Dolby Digital decoding device in order to hear audio.
Alternatively, you can reconfi gure the DVR to output 2-channel PCM any
time you want to use the TV to produce the audio portion of the content by
selecting HDMI in the General Settings - Audio Output screen. Depending
upon your equipment capabilities to select alternate audio sources for input,
other confi gurations may be possible. Refer to your equipment user's guides
for more information.
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