Troubleshoot sound problems[Following article applies to Windows Vista OS]
Here are solutions to some common problems with computer sound output, particularly from the speakers.
I can’t hear sound from my computer.
There are a few simple things to check first:
• Make sure your computer has a sound card.
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Open Device Manager by clicking the Start button  , clicking Control Panel, clicking System and Maintenance, clicking System, clicking Hardware and Device Settings, and then clicking Device Manager.
 If you are prompted for an administrator password or confirmation, type your password or click Allow.
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Expand the Sound, video and game controllers category. If a sound card is listed, you have one installed. If no sound card is listed, you will need to install or remove a sound card
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If there is a yellow question mark next to the name of the sound card, there might be a problem. Right-click the name of the sound card, and then click Properties. |
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Click the General tab and look in the Device status box to identify problems with the sound card. |
• Make sure your speakers are plugged into a working power source and turned on.
• Make sure your speakers are correctly connected to the computer. On your speakers, find the cable that plugs into your computer. Make sure that the speaker cable is plugged into the speakers and the correct jack on the computer. For example, if the cable is a 1/8 inch cable, there should be a round jack for it on the back of the computer. If it is a universal serial bus (USB) cable, it will plug into any USB port on your computer.
• Make sure that the speaker volume is not muted or turned down too low.
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Open Volume Control by clicking the Start button , clicking Control Panel, clicking Hardware and Sound, and then, under Audio Devices and Sound, clicking Adjust system volume. |
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Under Main Volume, move the slider up or down to raise or lower the volume. |
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 Note
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Some portable computers have an external volume control on the outside of the case. If you're using a portable computer, check the external volume control. |
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If these steps don’t solve the problem, check the information that came with your computer and speakers or go to the manufacturer's website.
Sound from my speakers is crackled or distorted.
•Make sure your speakers are correctly connected to your computer.
On your speakers, find the cable that plugs into your computer. Make sure that the speaker cable is plugged into the speakers and the correct jack on the computer. For example, if the cable is a 1/8 inch cable, there should be a round jack for it on the back of the computer. If it is a USB cable, it will plug into any USB port on your computer.
If the steps above don’t fix the problem, check the information that came with your computer and speakers or go to the manufacturer's website.
From the web site below
http://windowshelp.microsoft.com/Windows/en-US/Help/1e87a3e8-c0e8-49af-980f-9eb6686f42d21033.mspx |
