Lenovo ThinkPad X1 Carbon (English) User Guide - Page 109

icon. The Realtek HD Audio Manager window opens., All Control Panel Items

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2. Click Hardware and Sound. 3. Click Sound. 4. Click the Recording tab in the Sound window. 5. Select Microphone, and click the Properties button. 6. Click the Levels tab, and move the Microphone Boost slider upwards. 7. Click OK. Note: For details about controlling volume, refer to your Windows online help. • Problem: A volume or balance slider cannot be moved. Solution: The slider might be grayed out. This means that its position is fixed by the hardware and cannot be changed. • Problem: The volume sliders do not stay in place when some audio applications are used. Solution: It is normal for the sliders to change position when certain sound applications are used. The applications are aware of the settings in the Volume Mixer window and are allowed to change the settings themselves. An example is the Windows Media Player. Usually the application has sliders available to control the sound from within the application. • Problem: The balance slider cannot completely mute one channel. Solution: The control is designed to compensate for minor differences in balance and does not completely mute either channel. • Problem: There is no volume control for MIDI sound in the Volume Mixer window. Solution: Use the hardware volume control. This is because the built-in synthesizer software does not support the control. • Problem: The sound cannot be turned off completely even if you set the Master volume control at minimum. Solution: You still can hear some sound even though you have set the Master volume control at minimum. To turn off the sound completely, go to the Master volume control and select Mute speakers . • Problem: When you connect a headphone to your computer while playing sound, a speaker does not produce sound in the MULTI-STREAM mode at Realtek HD Audio Manager. Solution: Once the headphone is attached, the streaming is automatically redirected to it. If you want to listen to sound from the speakers again, be sure to set those speakers as the default device. The procedure is as follows: 1. Click Start ➙ Control Panel ➙ All Control Panel Items. 2. Click the Realtek HD Audio Manager icon. The Realtek HD Audio Manager window opens. 3. Look at the playback devices. If you have attached a headphone, the headphone will be automatically set as the default device, and the icon for that headphone will be checked. 4. To set a different device as the default, just double-click the icon for those speakers. That icon will now have a check mark. 5. Play any sound by use of a music program such as Windows Media Player. Ensure that sound comes from the speakers. For details, refer to the help information system for Realtek HD Audio Manager. Chapter 8. Troubleshooting computer problems 95

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2. Click
Hardware and Sound
.
3. Click
Sound
.
4. Click the
Recording
tab in the Sound window.
5. Select
Microphone
, and click the
Properties
button.
6. Click the
Levels
tab, and move the Microphone Boost slider upwards.
7. Click
OK
.
Note:
For details about controlling volume, refer to your Windows online help.
•
Problem
: A volume or balance slider cannot be moved.
Solution
: The slider might be grayed out. This means that its position is fixed by the hardware and
cannot be changed.
•
Problem
: The volume sliders do not stay in place when some audio applications are used.
Solution
: It is normal for the sliders to change position when certain sound applications are used. The
applications are aware of the settings in the Volume Mixer window and are allowed to change the settings
themselves. An example is the Windows Media Player. Usually the application has sliders available
to control the sound from within the application.
•
Problem
: The balance slider cannot completely mute one channel.
Solution
: The control is designed to compensate for minor differences in balance and does not
completely mute either channel.
•
Problem
: There is no volume control for MIDI sound in the Volume Mixer window.
Solution
: Use the hardware volume control. This is because the built-in synthesizer software does
not support the control.
•
Problem
: The sound cannot be turned off completely even if you set the Master volume control at
minimum.
Solution
: You still can hear some sound even though you have set the Master volume control at minimum.
To turn off the sound completely, go to the Master volume control and select
Mute speakers
.
•
Problem
: When you connect a headphone to your computer while playing sound, a speaker does not
produce sound in the MULTI-STREAM mode at Realtek HD Audio Manager.
Solution
: Once the headphone is attached, the streaming is automatically redirected to it. If you want
to listen to sound from the speakers again, be sure to set those speakers as the default device. The
procedure is as follows:
1. Click
Start
➙
Control Panel
➙
All Control Panel Items
.
2. Click the
Realtek HD Audio Manager
icon. The Realtek HD Audio Manager window opens.
3. Look at the playback devices. If you have attached a headphone, the headphone will be automatically
set as the default device, and the icon for that headphone will be checked.
4. To set a different device as the default, just double-click the icon for those speakers. That icon
will now have a check mark.
5. Play any sound by use of a music program such as Windows Media Player. Ensure that sound
comes from the speakers.
For details, refer to the help information system for Realtek HD Audio Manager.
Chapter 8
.
Troubleshooting computer problems
95