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Click OK to activiate the AC'97 functionality. When using an AC'97 front panel audio module, you can only have audio signals present on either the front or the back panel audio connections, but not both at the same time. - 99 - Appendix 5-2-2 Installing the S/PDIF In Cable (Optional) The S/PDIF in cable provides S/PDIF in functionality. S/PDIF In: The S/PDIF in jacks allow you to input digital audio signals to the computer for audio processing. A. Installing the S/PDIF In Cable: I Step 1: First, attach the connector at the end of the cable to the SPDIF_ header on your motherboard. Step 2: Secure the metal bracket to the chassis back panel with a screw. GA-EX38-DS5 Motherboard - 100 - S/PDIF Out: The S/PDIF out jacks can transmit audio signals to an external decoder for decoding to get the best audio quality. B. Conneting a S/PDIF out Cable Connect a S/PDIF coaxial cable or a S/PDIF optical cable (either one) to an external decoder for transmitting the S/PDIF digital audio signals. S/PDIF Optical Cable C. Configuring S/PDIF out: Click the tool icon in the DIGITAL section. In the S/PDIF In/Out Settings dialog box, select an output sampling rate and select (or disable) the output source. Click OK to complete the configuration. - 101 - Appendix 5-2-3 Enabling the DTS (Digital Theater Systems) Function Before DTS is enabled, you would get only 2-channel output signals (from the front speakers) when playing 2-channel music. You must play 4-, 5.1-, or 7.1- channel music sources to produce 4-, 5.1-, or 7.1- channel audio effects. With DTS enabled, the system will transform two-channel stereo source material into multi-channel audio output, creating a virtual surround sound environment(Note). After installing the audio driver, at the center bottom of the Audio Control Panel, you should find the DTS control button as shown below: DTS control button 1. o : This button provides you more controls over "dts NEO:PC". [MM Music Mode ; Cinema Mode 2. jlkri "dts NEO : PC" : Press this button to enable or disable the dts NEO : PC function. Enabling dts NEO : PC allows the system to transform ordinary 2-channel stereo content into 4-, 5.1-, or 7.1- channel surround sound, depending on your speaker configurations. 3. T sHi "dts INTERACTIVE" : If your surround sound system is connected via an external decoder, click the Audio I/O tab in the Audio Control Panel. Either click DTS Interactive in the upper left list or click the dts INTERACTIVE button at the center bottom of the Audio Control Panel. And click the dts NEO : PC button. The system will then simulate 5.1 channel surround sound playback from two-channel content. (Note) When DTS Interactive is enabled, only digital auio output (S/PDIF) is working, and you will not hear sound from analog speaker or headphone. GA-EX38-DS5 Motherboard - 102 - 4. Digital PCM Output Setup: In the Audio Control Panel, click the Audio I/O tab. In the upper left list, click Digital PCM Output. Enable this function to allow digital audio sources that are not digitally processed by DTS encoding to be output from the S/PDIF OUT. 5-2-4 Configuring Microphone Recording Step 1: After installing the audio driver, the Audio Manager icon m will appear in your system tray. Double-click 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 Line out jack 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. - 103 - Appendix 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. ». j- -• 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. Select Realtek HD Audio Input in the Mixer device list I- 4 » 4 Recording Control GA-EX38-DS5 Motherboard - 104 - Step 6: To raise the recording and playing sound for the microphone, go to Options in Master Volume and select ...