Chapter 4: Settings
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• The 4 Speaker selection is for computers equipped with sound
cards that support 4-ch output.
• The 6 Speaker selection (a.k.a. 5.1 channels) is for computers
equipped with sound cards that support 6-ch output and is
optimal for DVD Video titles that feature multichannels encoding
such as Dolby Digital 5.1 or DTS 5.1.
• The 7 Speaker and 8 Speaker options are available for users
who have multiple speakers and wish to output audio to each of
them.
• The Use S/PDIF option is an advanced technological Digital
InterFace, as opposed to transferring signals via conventional
analog interfaces, designed by the Sony and Philips
corporations. To enjoy true 6 speaker output quality, you must
have an external Dolby Digital or DTS decoder along with a S/
PDIF-compliant sound card to make this selection available.
Note: When the S/PDIF audio output is enabled and the output stream is not
PCM, the volume control for CyberLink PowerDVD is disabled because your
decoder assumes the task.
• The HDMI output selection is for users who have their audio
connected with an HDMI (High-Definition Multimedia Interface)
connector.
Note: HDMI output is available under Windows Vista only.
Output mode
This option lets you select the special processing that is used on the
audio signal. Experiment with the available settings to decide which
you prefer.
Note: The selections that are available in the Output mode drop down
menu are dependent on the selection made in Speaker Environment and the
configuration of your computer.
•
The major difference between Dolby Surround Compatible
Downmix and Stereo is that Dolby Surround uses the Dolby
Surround downmixing algorithm and the possibility exists of
connecting an analogue Pro Logic decoder to the sound card so
