Solution
1. Right-click the speaker icon on the system tray? , select "? Voice. " As shown in the following figure:
2. Open the Sound window, switch to the Communications tab, open the drop-down box, and set "When Windows detects communication activity" to "Do nothing". As shown in the figure below
, this function has been successfully removed, and messages from QQ or MSN under windows7 will not affect the sound of the player in the future.