Gigabyte GA-EP45T-EXTREME Manual - Page 102

Enabling the Dolby Home Theater Function

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5-2-3 Enabling the Dolby Home Theater Function Before Dolby Home Theater is enabled, you get only 2-channel playback output (from the front speakers) when playing 2-channel stereo sources. You must play 4-, 5.1-, or 7.1channel content to get 4-, 5.1-, or 7.1- channel audio effects. With Dolby Home Theater enabled, 2-channel stereo content will be transformed into multi-channel audio, creating a virtual surround sound environment . (Note) A. Windows XP After installing the audio driver, at the center bottom of the Audio Control Panel, you should find the Dolby Home Theater control buttons as shown below: Dolby Home Theater Control Buttons 1. : This button provides you with more controls over the onboard audio. 2. DOLBY HEADPHONE: Click this button to enable or disable the Dolby Headphone function. Enabling Dolby Headphone allows 2-channel stereo content to be heard as surround sound from any set of headphones. 3. DOLBY PRO LOGIC II: Click this button to enable or disable the Dolby Pro Logic II function. Enabling Dolby Pro Logic II allows 2-channel stereo content to be processed into 4- or 5.1- channel surround sound, depending on your speaker configurations. 4. DOLBY VIRTUAL SPEAKER: Click this button to enable or disable the Dolby Virtual Speaker function. Enabling Dolby Virtual Speaker allows 2-channel stereo content to be heard as surround sound from two speakers. 5. DOLBY DIGITAL LIVE: If your surround sound system is connected via an external decoder, click the Audio I/O tab in the Audio Control Panel. Either click Dolby Digital 5.1 in the upper left list or click the DOLBY DIGITAL LIVE button at the center bottom of the Audio Control Panel. And click the DOLBY PRO LOGIC II button. The system will then simulate 5.1 channel surround sound playback from two- channel content. B. Windows Vista Install the Dolby GUI Software driver from the motherboard driver disk. Click the Start icon to All Programs, Dolby Control Center to access the utility. (The following illustration demonstrates a 7.1-speaker configuration as an example.) . Point 1. : Click Dolby Pro Logic IIx. The system will expand 2-channel audio for a 7.1-channel surround sound playback. 2. : Click Natural Bass to enable speaker bass effect. (Note) When Dolby Digital Live is enabled, only digital audio output (S/PDIF) is working, and you will not hear any sound from analog speakers or headphone. GA-EP45T-EXTREME Motherboard - 102 -

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GA-EP45T-EXTREME Motherboard
- 102 -
Dolby Home Theater Control Buttons
5-2-3
Enabling the Dolby Home Theater Function
Before Dolby Home Theater is enabled, you get only 2-channel playback output (from the
front speakers) when playing 2-channel stereo sources. You must play 4-, 5.1-, or 7.1-
channel content to get 4-, 5.1-, or 7.1- channel audio effects. With Dolby Home Theater
enabled, 2-channel stereo content will be transformed into multi-channel audio, creating a
virtual surround sound environment
(Note)
.
(Note)
When Dolby Digital Live is enabled, only digital audio output (S/PDIF) is working, and you will
not hear any sound from analog speakers or headphone.
1.
: This button provides you with more controls over the onboard audio.
2.
DOLBY HEADPHONE:
Click this button to enable or disable the Dolby Headphone function. Enabling Dolby Headphone
allows 2-channel stereo content to be heard as surround sound from any set of headphones.
3.
DOLBY PRO LOGIC II:
Click this button to enable or disable the Dolby Pro Logic II function.
Enabling Dolby Pro Logic II allows 2-channel stereo content to be processed into 4- or 5.1- channel
surround sound, depending on your speaker configurations.
4.
DOLBY VIRTUAL SPEAKER:
Click this button to enable or disable the Dolby Virtual Speaker function. Enabling Dolby Virtual
Speaker allows 2-channel stereo content to be heard as surround sound from two speakers.
5.
DOLBY DIGITAL LIVE:
If your surround sound system is connected via an external decoder, click the
Audio I/O
tab in
the Audio Control Panel. Either click
Dolby Digital 5.1
in the upper left list or click the
DOLBY
DIGITAL LIVE
button at the center bottom of the Audio Control Panel. And click the
DOLBY PRO
LOGIC II
button. The system will then simulate 5.1 channel surround sound playback from two-
channel content.
After installing the audio driver, at the center bottom of the Audio
Control Panel, you should find the Dolby Home Theater control but-
tons as shown below:
A. Windows XP
B. Windows Vista
1.
: Click
Dolby Pro Logic IIx
.
The system will expand 2-channel audio for a 7.1-channel
surround sound playback.
2.
: Click
Natural Bass
to enable
speaker bass effect.
Install the
Dolby GUI Software
driver from the motherboard driver disk. Click the
Start
icon
. Point
to
All Programs
,
Dolby Control Center
to access the utility.
(The following illustration demonstrates a 7.1-speaker configuration as an example.)