MSI P4m900m3l Manual

							MS-7255 Mainboard
B-10The “Headphone”  and “Front Microphone” configuration panels may or may not be
shown depending on your computer system. The “Headphone” mixer controls work
the same way as the “Playback” mixer controls, but it is only visible when the ”Inde-
pendent Headphone” feature is enabled.Headphone ControlBalanceVolumeMuteDefault Playback Device
The Front Microphone configuration panel is shown in the figure below. This con-
figuration panel only contains one mixer control because the front microphone only
has one input jack.Front Microphone ControlBalanceVolumeDefault Playback DeviceAppendix VT1708 audio.p65  2006/9/15, 下午 02:1410 
						

							B-11 VIA VT1708 Audio
Effects Configuration Panel
There are two sound enhancement controls in Adeck: Equalizer and Bass
Management.
When the Equalizer is selected, you will see the 10 bands from 31 Hz to 16 kHz. The
equalizer settings will only take effect after you enables it by pressing the On/Off
button above the equalizer.
There are seven preset equalizer settings that can be selected: Classical, Dance,
Pop, Rock, Vocal, Jazz and Party. Additionally, you can create custom settings and
save them for later use. To save the current equalizer setting, click on the Save
button. To delete a setting, select the setting to be deleted from the drop-down menu
and click on the Delete button.Equalizer ControlEqualizer On/OffSmooth AdjustmentDefault ValueSave ValueDelete SettingAdjust ValueUser DefineSound Effect
The below figure shows an example of an adjustment being made to the 500 Hz band
without the Smooth Slider enabled.If Smooth Slider is enabled, any adjustment to any of the Equalizer bands will cause
the surrounding bands to be affected so as to produce a smoother sound.Appendix VT1708 audio.p65  2006/9/15, 下午 02:1411 
						

							MS-7255 Mainboard
B-12The below figure shows the Bass Management features. You can enable the
Bass Management features by clicking on the On/Off button at the top of the
Bass Management controls. The Bass Management feature allows you to control
the low frequency limits for the speakers. When the low frequency limit is set for a
speaker, any audio signal below the limit will be automatically channeled to the
subwoofer. Each speaker (except for the subwoofer) can be configured to have a
different low frequency limit. For example, if you wants to set the low frequency limit
for front-left speaker to 310 Hz, then you can click on the picture of the front-left
speaker and change the Cutoff Frequency to 310 Hz.
Additionally, you can enhance the bass by checking the Bass Boost checkbox.Bass ManagementBass Management On/OffPresetsCutoff FrequencySubwoofer ConfigurationBass Boost When set to “User Customizable”, you
can click on the speakers to enable/dis-
able Speaker Bass Cutoff.Appendix VT1708 audio.p65  2006/9/15, 下午 02:1412 
						

							B-13 VIA VT1708 Audio
Jack Configuration Panel
The Jack Configuration Controls enable you to configure all the audio jacks on the
computer system. The Back Panel lists all the jacks at the rear side of the computer
system. The Front Panel lists all the jacks at the front side of the computer system.
In general, the multi-channel playback and recording jacks will be listed in the Back
Panel controls. And the Headphone and Front Mic will be list on Front Panel.
In the Back Panel controls, shown in the below figure, the jacks can be distin-
guished by the different colors used to identify each jack. You should be able to find
matching colors at the rear of the computer system. Each of the jacks can be re-
assigned.You can easily revert to the default setting by clicking on the Default
button.
The Front Panel controls usually only has two jacks listed: Headphone and Front
Mic.Back panel ControlPress to set Jack FunctionJack ColorAuto Show DialogFront Panel ControlPress to set Jack FunctionJack ColorAuto Show DialogPress to detect status of jacksPress to detect status of jacksAppendix VT1708 audio.p65  2006/9/15, 下午 02:1413 
						

							MS-7255 Mainboard
B-14The jack detection function can be enabled by checking the Auto Show Dialog
checkbox. When a new device is plugged-in, a new panel will be displayed. The
below figure shows an example of a jack being plugged into the green jack. When the
jack insertion is detected, Adeck will be displayed. You will see a red arrow indicating
the jack insertion event. Even the “Auto Show Dialog” is disabled, you still can press
the “Manual Detect” to detect status of jacks.
When you clicks on the jack indicated by the arrow, an extension of the panel will be
displayed. There you can assign the jack to any available function. Functions that are
not available will not have a checkbox next to it.Indicates a jack has been insertedSuggest Jack FunctionSet Jack FunctionIndicates unavailabilityAuto Show DialogPress to detect status of jacksAppendix VT1708 audio.p65  2006/9/15, 下午 02:1414 
						

							B-15 VIA VT1708 Audio
The Headphone Configuration Panel is shown in the below figure. There are two
headphone configurations that can be chosen: Independent Headphone or Redi-
rected Headphone.
Redirected Headphone Function
The Redirected Headphone features enables you to hear the same audio that is
being channeled to the front speakers. In this mode, once the headphone has been
inserted the audio will be redirected from the speakers to the headphone.
Please note that the Independent Headphone function requires two channels.
Therefore, only six channels will be available if Independent Headphone is being
used.
Independent Headphone Function (Multi-Stream Function)
The Independent Headphone feature enables you to play different audio sources
simultaneously and let them output respectively from the indicated rear panel or front
panel. This feature is very helpful for different purposes playback at the same time..,
1. Click Configuration button to show the menu.
2. Mark “check” to select desired box to enable Independent Headphone Function.Headphone ConfigurationIndependent HeadphoneRedirected HeadphoneImportant
Before set up, please make sure the playback devices are well plugged in the
jacks on the rear or front panel. The VIA HD Audio front Headphone item will
appear after you plugging the speakers into the jacks on the front panel.Appendix VT1708 audio.p65  2006/9/15, 下午 02:1415 
						

							MS-7255 Mainboard
B-16In the default setting, the first selective audio source will be played from the rear
panel. For the second audio source output, you must select the VIA HD Audio front
output from the scroll list. Then this second audio can be played back from the Front
out by different audio playback AP.Appendix VT1708 audio.p65  2006/9/15, 下午 02:1416 
						

							B-17 VIA VT1708 Audio
S/PDIF Configuration Panel
The S/PDIF Configuration Panel allows you to enable S/PDIF support and select the S/
PDIF output sampling rate. Please note that some S/PDIF decoders do not support
176.4 and 192 kHz. Before enable these higher sampling rates, please checking the
external S/PDIF decoder first.S/PDIF Output ControlOutput Sample RateEnable S/PDIF Output
System Information Panel
The System Information Panel displays the current system information, allows you to
select the language for Adeck and enables you to visit the VIA web site.System InformationVisit VIA webSelect LanguageAppendix VT1708 audio.p65  2006/9/15, 下午 02:1417 
						

							MS-7255 Mainboard
B-18Hot Key Configuration Panel
The Hot Key Configuration Panel allows you to set hot keys for controlling the
volume and muting. To use the hot keys, Enable Hot Key Function must first be
checked.System InformationEnable Hot Key FunctionSet Hot KeyWhen a hot key is pressed, the screen will show a green volume control bar at the
bottom of the screen and a mute/un-mute icon at the top-right corner of the screen.
The on-screen display can be hidden by pressing the Show/Hide hot key.Appendix VT1708 audio.p65  2006/9/15, 下午 02:1418