Knowledge Base

No Sound

Symptoms:

You can see the video but you can’t hear the sound.

Detailed Information:

If you are unable to hear audio playback when using the LearnKey software, then checking speaker power/volume, adjusting the sound card configuration, adjusting the system’s volume sliders, closing background programs, or verifying your hardware setup will usually fix this problem.

Solution:

Solution 1:

Check your Speaker power & volume.
The first thing to check is if your speakers are connected properly, have the power turned on and the volume set appropriately.

Solution 2:

Adjust the system’s volume sliders.
Windows has independent volume controls for each different type of sound. To make sure the volume controls are not set too low or muted on your computer:

Double-click the speaker icon in the status area of the taskbar in the lower right corner of the screen.
Make sure that Mute is not selected for the Volume Control (Play Control), Wave (Wave/Direct Sound) or CD Audio sliders; they should be set to reasonable levels.

Select the Options menu and choose Properties.
In the Show the following controls section, select the Volume Control (Play Control) or Wave (Wave/Direct Sound) check box.
Click OK to close the Properties window.

Solution 3:

Make sure that ’Use Only Preferred Device’ is selected in the Control Panel.

Click on Start -> Settings -> Control Panel
Double-click on the Sounds and Multimedia icon (under Windows XP it is called "Sounds and Audio Devices")
Click on the Audio tab
Take a note of what your preferred device is. If it states ’No preferred device’ then please see step 11.
Put a check in the "Use Only Preferred" device box
Click on the ’Sounds’ tab
Click on "Asterisk", so it is highlighted
Click on the "Play" button to play the sound.
Do you hear the sound effect? If not skip to step 11
If you do, click on "OK" and skip to step 12.
There is a problem with the way your sound card is installed in Windows. Please see your hardware provider to properly configure your sound card.
You either have a faulty install of your Video Compression or you do not have it installed. For more information from Microsoft regarding this error, please review the following Microsoft Knowledge Base Articles:

Solution 4:

Close all other applications running on your computer.

Solution 5:

Check the sound card for any conflicts with another device.
To check the status of your sound card:

Click the "Start" button, point to "Settings", and then click "Control Panel".
Double-click the "System" icon. (Windows XP: Click Switch to Classic View and then double-click the System icon.)
Click the "Device Manager" tab (Windows 2000/XP: click the Hardware tab, then click the Device Manager button.)
Double-click "Sound, Video and Game Controllers", then double-click the sound card icon to open "Properties".
On the "General" tab, make sure that the "Device Status" message is "This device is working properly". If the device is not working properly, contact the sound card or computer manufacturer for further assistance.
Under "Device Usage" option, make sure the "Disable in this hardware profile" option is not selected. In Windows 2000/XP the Device Usage field should indicate "Use this device (enable)".

Solution 6:

Update your sound card drivers.

Your computer uses driver software to send information to the sound card. LearnKey software may not be able to play sound if the driver software is out of date or corrupt.

We recommend you update your sound card drivers on a regular basis. To do so visit your sound card manufacturers web site.

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