Windows7 volume when the time is small and small solution

When friends use Windows7 to watch movies and listen to music, they often find that the sound is big and small, and later found that it is to open QQ or MSN and other instant messaging while watching video or listening to music. The problem with the tool, the volume will become smaller whenever the QQ message comes. How to solve this problem?

In fact, this is a new feature of Windows 7 "Communication". When using a PC to make a call or answer a call, Windows can automatically adjust the different volume. So when there is a message from QQ or MSN, Windows will automatically reduce the sound because of the sound.

Solution:

1. Under the control panel, find: Hardware and Sound-> Sound, there is "Adjust system volume" and "Change system sound" Features.

2. Click on "Sound” or <;Change System Sound", select the "Communication" tab. "When Windows detects communication activity: & rdquo; select as "do nothing" & rdquo;.

This solves the problem of large and small Windows 7 sounds.