Win7 system computers just turn on the game and the sound gets smaller. What's going on?

Win7 System Computers just turn on the game and the sound gets smaller. What's going on?

Method One:

1, right click on the lower right corner of the desktop sound icon, select "Play Device";

2, in the pop-up sound window, switch to "communication", select "Do not perform any operation", click OK;

Method Two:

1, press win+e shortcut key, open the Resource Manager, click on the menu "open Control Panel";

2, click "Hardware and Sound";

3, click the sound below the "management of audio equipment";

4, switch to the Communication tab, select "Do not perform any operation", and click OK;

5, in addition, there are some software will automatically adjust the sound, in this case can be uninstalled or upgraded software to solve problems, such as Storm audio and video.