QQ message to the QQ music voice will become small is how to return?

The reason for this is that Windows automatically adjusts the volume of different sounds when the user sets up the computer to use the PC to dial or answer the phone, and the Win7 system first finds the speaker icon in the lower-right corner of the taskbar. Then right click on the icon, select "Recording Device" (Of course, you can not find the speaker icon, go to the Control Panel to find the sound option is the same) as shown in the picture:

Then switch to the "Communication" button, you see if you are in the "When Windows detects communications activity," Select the top three options in the first option, if it is the words will appear QQ information QQ music voice will become smaller. We then select the "Do not do anything" button again. As shown in the figure:

Now you continue to listen to QQ music, so in chat QQ, QQ information is not the voice of QQ music will not become smaller, it is certainly so.