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Select the Mute the rear output device, when a front headphone plugged in check box. Click OK to complete. 5-2-2 Configuring S/PDIF In/Out A. S/PDIF In The S/PDIF In cable (optional) allows you to input digital audio signals to the computer for audio processing. S/PDIF In Cable Coaxial S/PDIF In Optical S/PDIF In 1. Installing the S/PDIF In Cable: Step 1: First, attach the connector at the end of the cable to the SPDIF_IN header on your motherboard. Step 2: Secure the metal bracket to the chassis back panel with a screw. 2. Configuring S/PDIF In: On the Digital Input screen, click the Default Format tab to select the default format. Click OK to complete. (Note) The actual locations of the S/PDIF In and S/PDIF Out connectors may differ by model. B. S/PDIF Out The S/PDIF Out jacks can transmit audio signals to an external decoder for decoding to get the best audio quality. 1. Connecting a S/PDIF Out Cable: S/PDIF Optical Cable Connect a S/PDIF optical cable to an external decoder for transmitting the S/PDIF digital audio signals. 2. Configuring S/PDIF Out: On the Digital Output(Optical) screen (Note), click the Default Format tab and then select the sample rate and bit depth. Click OK to complete. (Note) Enter the Digital Output(Optical) screen to configure further settings if you use the S/PDIF Out connector(s) on the back panel for digital audio output or enter the Digital Output screen if you use the internal S/PDIF Out connector (SPDIF_OUT) for digital audio output. 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). 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. : 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. 5-2-4 Configuring Microphone Recording Step 1: After installing the audio driver, the HD Audio Manager icon will appear in the notification area. Double-click the icon to access the HD Audio Manager. 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: Go to the Microphone screen. Do not mute the recording volume, or you'll not be able to record the sound. To hear the sound being recorded during the recording process, do not mute the playback volume. It is recommended that you set the volumes at a middle level. If you want to change the current sound input default device to microphone, right-click on Microphone and select Set Default Device. Step 4: To raise the recording and playback volume for the microphone, click the Microphone Boost icon on the right of the Recording Volume slider and set the Microphone Boost level. Step 5: After completing the settings above, click Start, point to All Programs, point to Accessories, and then click Sound Recorder to begin the sound recording. * Enabling Stereo Mix If the HD Audio Manager does not display the recording device you wish to use, refer to the steps below. The following steps explain how to enable Stereo Mix (which may be needed when you want to record sound from your computer). Step 1: Locate the Volume icon in the notification area and right-click on this icon. Select Recording Devices. Step 2: On the Recording tab, right-click on an empty space and select Show Disabled Devices. Step 3: When the Stereo Mix item appears, right-click on this item and select Enable. Then set it as the default device. Step 4: Now you can access the HD Audio Manager to configure Stereo Mix and use Sound Recorder to record the sound. 5-2-5 Using the Sound Recorder A. Recording Sound 1. Make sure you have connected the sound input device (e.g. microphone) to the computer. 2. To record the audio, click the Start Recording button . 3. To stop recording audio, click the Stop Recording button . Be sure to save the recorded audio file upon completion. B. Playing the Recorded Sound You can play your recording in a digital media player program that supports your audio file format. 5-3 Troubleshooting 5-3-1 Frequently Asked Questions To read more FAQs for your motherboard, please go to the Support & Dow...