Lenovo 3444CUU Laptop User Manual


 
Audio problems
Problem: Wave or MIDI sound does not play correctly.
Solution: Make sure the built-in audio device is congured correctly.
1. Click Start Control Panel.
2. Click Hardware and Sound.
3. Click Device Manager. If you are prompted for an administrator password or conrmation, type the
password or provide conrmation.
4. Double-click Sound, video and game controllers.
5. Make sure the following device is enabled and congured correctly:
Conexant 20672 SmartAudio HD
Problem: Recordings made by using the Microphone input are not loud enough.
Solution: Make sure that Microphone Boost is turned on and set as follows:
1. Click Start Control Panel.
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 xed 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 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 on 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 can still 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 SmartAudio.
Chapter 10. Troubleshooting computer problems 135