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Using DolbyUsing Dolby
Using DolbyUsing Dolby
Using Dolby
®
Digital Live Digital Live
Digital Live Digital Live
Digital Live™
The Dolby
®
Digital Live™ technology encodes your computer’s digital audio
contents to real-time Dolby
®
Digital streams. Using the CODEC and the
Sony/Philips Digital Interface (S/PDIF) ports on the motherboard, you can
send the encoded Dolby
®
Digital streams to an AC-3 decoder for playback
on a multi-channel speaker system.
Refer to the following illustrations when converting sounds to Dolby
®
Digital
streams.
Direct or non-encodedDirect or non-encoded
Direct or non-encodedDirect or non-encoded
Direct or non-encoded
audio in your computeraudio in your computer
audio in your computeraudio in your computer
audio in your computer
passes through thepasses through the
passes through thepasses through the
passes through the
AC-3 encoder.AC-3 encoder.
AC-3 encoder.AC-3 encoder.
AC-3 encoder.
1
2
The AC-3 encoderThe AC-3 encoder
The AC-3 encoderThe AC-3 encoder
The AC-3 encoder
converts theconverts the
converts theconverts the
converts the
sound into Dolbysound into Dolby
sound into Dolbysound into Dolby
sound into Dolby
®®
®®
®
Digital streams.Digital streams.
Digital streams.Digital streams.
Digital streams.
CMI9880CMI9880
CMI9880CMI9880
CMI9880
CODECCODEC
CODECCODEC
CODEC
3
The audio CODECThe audio CODEC
The audio CODECThe audio CODEC
The audio CODEC
processes the streamsprocesses the streams
processes the streamsprocesses the streams
processes the streams
then passes it to an AC-3then passes it to an AC-3
then passes it to an AC-3then passes it to an AC-3
then passes it to an AC-3
decoder through thedecoder through the
decoder through thedecoder through the
decoder through the
S/PDIF out port.S/PDIF out port.
S/PDIF out port.S/PDIF out port.
S/PDIF out port.
4
The AC-3 decoderThe AC-3 decoder
The AC-3 decoderThe AC-3 decoder
The AC-3 decoder
processes theprocesses the
processes theprocesses the
processes the
streams then playsstreams then plays
streams then playsstreams then plays
streams then plays
them back on athem back on a
them back on athem back on a
them back on a
multi-channelmulti-channel
multi-channelmulti-channel
multi-channel
speaker system.speaker system.
speaker system.speaker system.
speaker system.
To enable the Dolby
®
Digital Live™:
1. Connect an AC-3 decoder to the
coaxial/optical S/PDIF out port.
2. Connect the AC-3 decoder to
the multi-channel speaker
system.
3. Launch the C-Media 3D Audio
Configuration utility by double
clicking the C-Media icon on the
Windows
®
taskbar.
4. Click the
Dolby Digital LiveDolby Digital Live
Dolby Digital LiveDolby Digital Live
Dolby Digital Live
button. You can now convert
your computer’s audio content
to Dolby
®
Digital streams.