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If you want to mute the back panel audio (only supported when using an HD front panel audio module), refer to instructions on the next page. High Definition Audio (HD Audio) HD Audio includes multiple high quality digital-to-analog converters (DACs) that support 44.1KHz/ 48KHz/ 96KHz/192KHz sampling rate. HD Audio features multistreaming capabilities that allow multiple audio streams (in and out) to be simultaneously processed. For example, users can listen to MP3 music, have an Internet chat, make a telephone call over the Internet, and etc. all at the same time. A. Configuring Speakers: (The following instructions use Windows Vista as the example operating system.) Step 1: After installing the audio driver, the HD Audio Manager icon ^ will appear in the notification area. Doubleclick the icon to access the HD Audio Manager (Note) 2/4/5.1/7.1-Channel Audio Configurations: Refer to the following for multi-channel speaker configurations. • 2-channel audio: Headphone or Line out. • 4-channel audio: Front speaker out and Rear speaker out. • 5.1-channel audio: Front speaker out, Rear speaker out, and Center/Subwoofer speaker out. • 7.1-channel audio: Front speaker out, Rear speaker out, Center/Subwoofer speaker out, and Side speaker out. - 77 - Appendix Step 2: Connect an audio device to an audio jack. The The current connected device is dialog box appears. Select the device according to the type of device you connect. Then click OK. ««tt>DWWW ar“ ■ Q . --q g — ' • # 1 ,Jp sJlils H — IB m m # £? i •M t=d l_XJ GIGABYTE ixi Step 3: On the Speakers screen, click the Speaker Configuration tab. In the Speaker Configuration list, select Stereo, Quadraphonic, 5.1 Speaker, or 7.1 Speaker according to the type of speaker configuration you wish to set up. Then the speaker setup is completed. B. Configuring Sound Effect: You may configure an audio environment on the Sound Effects tab. C. Activating an AC'97 Front Panel Audio Module: If your chassis provides an AC'97 front panel audio module, to activate the AC'97 functionality, click the tool icon on the Speaker Configuration tab. On the Connector Settings dialog box, select the Disable front panel jack detection check box. Click OK to complete. Cowiwlw SiTliqs waoooo OMil ^iei ri [=- ID I — I D. Muting the Back Panel Audio (For HD Audio Only): Click Device advanced settings on the top right corner on the Speaker Configuration tab to open the Device advanced settings dialog box. Select the Mute the rear output device, when a front headphone plugged in check box. Click OK to complete. GA-EP43-UD3L/US3L Motherboard - 78 - 5-1-2 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. 1. Installing the S/PDIF In Cable: SÜ 'ilCWt Step 1: First, attach the connector at the end of the cable to the SPDIF_I 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 SPDIF In and SPDIF Out connectors may differ by model. - 79 - Appendix 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. Conneting a S/PDIF Out Cable S/PDIF Coaxial Cable S/PDIF Optical 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. 2. Configuring S/PDIF Out: On the Digital Output screen, click the Default Format tab and then select the sample rate and bit depth. Click OK to complete. i' i" 1»— ST“ T^O"« -Q g| laMMMl — ' • • • • m F • ¡s)U GIGABYTE r=~) GA-EP43-UD3L/US3L Motherboard - 80 - 5-1-3 Configuring Microphone Recording Step 1: After installing the audio driver, the HD Audio Manager icon m will appear in the notification area. Doubleclick 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 note default device to microphone, right-click on Microphone and select Set Default Device. - 81 - Appendix Step 4: To raise the recording and playback volume for the microphone, click the Microphone Boost icon, on the right of the Re...