When there is a QQ prompt sound in win7, the song sound will become smaller and larger (the sound will suddenly increase or decrease)

Listen to the song under win7, then suddenly a QQ prompt sound, the sound of the music suddenly becomes small and then returns to normal

The solution is as follows:

 

Right-click the speaker icon on the system tray, select sound in the pop-up menu, open the sound window, switch to the communication tab ),

Open the drop-down box and set "when Windows detects a communication activity" to "do not perform any operation ". In this way, the player's voice will not be affected after QQ messages are sent.

Link: http://zhidao.baidu.com/question/150149978.html? Fr = ala0