Hi Rashed, It is possible that the drivers for Gadmei TV stick UTV382E is not fully compatible with Windows 8. In-order to fix the Sound output, refer the following steps. Method 1: Run the hardware troubleshooter and check the issue status. Follow the steps: a. Press “Windows key + W”. Type “Troubleshooter” in the Search box and hit enter.
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Select “Hardware and Sound” from the Troubleshooter Window. Select “Hardware and Devices” under Devices option. Follow the On Screen instructions Method 2: I would suggest you to download and install the Windows 7 compatible driver in compatibility mode. Making older programs compatible with this version of Windows. What is program compatibility?
Compatibility Center. You can download the Windows 7 driver from the following link. 
USB TV SERIES. Hope it helps.
John Rubdy Forum Moderator Microsoft Community. Open Sound by pressing Windows key + X, then clicking Control Panel. In the search box, type sound, then click Sound.
Photoshop cs3 keygen rapidshare. • Click the Playback tab and look for an TV tuner device; this will appear as a speaker icon and will be labelled Speaker, followed by the name of the device. • If you have an TV tuner device, click the device, click Set Default, then click OK. Changing the audio device might require you to restart your computer. If issue persists, contact your TV tuner support Hope this helps John Rubdy Forum Moderator Microsoft Community.