Win7 naughty sound device why there is no sound on the webpage

Recently, win7 users have encountered a very strange phenomenon, that is, playing video or music locally, there is sound, but as long as you watch video or music online on the web, it sounds a little. No, is this a win7 naughty music device at work? Let's study what it is all about.

In fact, this problem is not only happening in win7 system, but also in win xp and vista. It is usually caused by using any optimization software or installing and uninstalling various decoders.

Solution:

Click “Start”Menu →“Run"Enter“regedit” and press Enter to open the Registry Editor, in the left pane Click “HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionDrivers32”, then check in the right pane for the value of "wavemapper". If not, right-click in the blank space on the right pane to create a new string value called “wavemapper”, and then double-click the value to set its “Value Data” as “msacm32.drv”, Restart your computer to resolve the issue.

Tip: If there is no sound after setting according to the above method, please check if there is a volume icon in the system tray. If not, windows7 will open “sound and audio device properties", select “ put the volume icon into the taskbar & rdquo;, then there will be a sound.

Through the introduction of the above content, the problem that win7 plays video or music without sound on the webpage is a common phenomenon. If the user encounters a similar situation during the use, try the small one. Edit this method for everyone to introduce.