Win7 system sound card how to debug?

1. Open the Sound Adjustment board, in the lower right corner of the small horn right click, select "Recording equipment."

2. Modify the recording options, select "Record", click the right mouse button in the middle margin, and check "show disabled devices."

3. See the "Stereo Mix" option, right click on the above, select "Enable".

4. For mixing options to debug, click on "Stereo Mix", the right Button "properties", or the lower right corner.

5. The "Stereo Mixing" volume bar appears, according to the actual effect of self-regulation, point right lower corner of the "OK." Then click on the playback, on the speaker Right button properties, clicking Level, the inside of all the small red fork point away.

6. Audio Manager settings, double hit the lower right corner of the "Red Trumpet", or: Start-settings-control Panel-HD sound card. Speaker "Horn Configuration" setting.

7. Continue setting in the sound bar.

8. "Default format" setting.

9. Microphone "Microphone effect" setting.

10. "Default format" setting.

11 "Device Advanced Settings".

12. After the confirmation, the sound card debugging basically completes.