Solution One
1, we login QQ, login in the QQ panel we click on the "System settings" icon.
2, then in the Pop-up Properties window we click--sound--Do not check "turn off all Sound":
3, there is another to see if the QQ sound files to optimize the software damage, we in the "System settings"-"sound"-"set the Beep" to see if there is a sound.
4, click to listen, if there is no sound, may be the message sound file defect
workaround Two, if the above method is set or not resolved we can try to use the tool to fix it.
1. Open 360 computer guards in the computer, then click the Computer aid function.
2. Into the page we enter our questions such as "QQ message no Sound", and then click on the right search modern.
3. Into the search results page we will see a lot of fixes, such as we find the first suitable for their own, and then click on the right side of the "repair immediately" function, (if you are using QQ will be prompted to quit QQ OH)
4. After the modification is complete, we restart the computer and try to solve it.