What happens when Lenovo G485 an echo in Win7 and Win8 with a microphone?

Failure Phenomenon:

The Lenovo G485 model has an echo problem when using a microphone, especially when using QQ voice chat.

　Reason Analysis:

This problem is mainly related to drivers, software settings, and so on.

　　Solution:

1. Reinstall the original Microsoft system, and use the sound card official website Drive, according to the notebook model in Lenovo's official website to choose the right driver to download and install. The following is the Lenovo official drive details:

2. Right click on the bottom right corner of the "Horn" icon, click on "Recording Equipment", the following figure:

3. A "Microphone" device appears, right click on "Microphone" and click "Properties" as shown below:

4. In "Microphone properties" in "Listening", find "listen to this device", if the hook, please remove the hook:

5. Click on the "level", the "microphone enhanced" to 0.0dB, you can moderate the microphone volume adjustment;

6. In enhanced, select Disable all sound effects;

7. Finally, in the "Advanced", find "exclusive mode", under which there are two options, all tick. The "Allow application exclusive control of this device" "gives exclusive mode application precedence". You can also adjust the "default format" as shown in the following illustration:

8. QQ set up only two steps, in the QQ main interface Click the lower left corner gear-like "Open system Settings" icon, into the QQ "System settings", select "Audio and Video" in "Voice settings";

9. After the voice set "adjust" under the "Automatically adjust the microphone volume" and "Automatically enlarge the microphone volume" box "hook removed." The following figure: