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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*"0“*. 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: «El : This button provides you with more controls over the onboard audio. | 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. BB 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. 3K 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. (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. - 103 - Appendix B. Windows Vista 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.) 1 . Dolby Pro Logic Ilx . : Click Dolby Pro Logic IIx. The system will expand 2-channel audio for a 7.1-channel surround sound playback. 2. Natural Bass * : Click Natural Bass to enable speaker bass effect. 5-2-4 Configuring Microphone Recording Step 1: After installing the audio driver, the Audio Manager icon will appear in your system tray. Doubleclick the icon to access the Audio Control Panel. Step 2: Connect your microphone to the Mic in jack (pink) on the back panel or the Mic in jack (pink) on the front panel. Then configure the jack for microphone functionality. Note: The microphone functions on the front panel and back panel cannot be used at the same time. Step 3: Locate the Volume icon ■© in your system tray and click it to open the volume control panel. GA-EP45-DS5 Motherboard - 104 - Step 4: To hear the sound being recorded during the recording process when using the microphone function on the front panel, do not select the Mute check box under Front Pink In or Front Green In in Master Volume. It is recommended that you set the volume at a middle level. To hear the sound being recorded during the recording process when using the microphone function on the back panel, do not select the Mute check box under Rear Pink In in Master Volume. It is recommended that you set the volume at its middle level. or (Note) If you cannot find the volume control options you need in Master Volume, go to the Options menu and then choose Properties. Select the volume control options you wish to show and click OK to complete. Step 5: Next, while in Master Volume, go to Options and click Properties. In the Mixer device list, select Realtek HD Audio Input. Then set the recording sound level properly. Do NOT mute the recording sound, or you will not hear any sound when playing back the recording you just made. (Note) Based on the audio specifications, to adjust the recording sound, use the Recording option to set the recording sound for your recording device(s) altogether. Select Realtek HD Audio Input in the Mixer device list |'W" "• —* l"v~- V 3 •» V n 4 3-* . Recording Control - 105 - Appendix Step 6: To raise the recording and playing sound for the microphone, go to Options in Master Volume and select Advanced Controls. Click the Advanced button under a volume control option (e.g. Front Green In, Front Pink In). In the Other Controls field, select the 1 Microphone Boost check box. Step 7: After completion, click Start, point to All Programs, point to Accessories, point to Entertainment, and then click Sound Recorder to begin the sound recording. 5-2-5 Using the Sound Recorder Recording the Sound: 1. Make sure you have connected the audio input device (e.g. microphone) to the computer. 2. On the File menu, choose New. 3. To record a sound file, click the Recording button oa. 4. To stop the recording, click the Stop button ■ . Be sure to save the recording upon...