How to debug the sound card of Win7 system?

1. Open the sound adjustment board, right click on the small speaker in the lower right corner and select “recording device”.

2. Modify the recording options, select “record ”, right click in the middle of the blank space, and tick "Show disabled devices".

3. To see the "Stereo Mix" option, right click on it and select "Enable".

4. Debug the mix options, click on "Stereo mix", right click on "Attribute", or in the lower right corner.

5. The “Stereo Mix” sound volume appears. Adjust it according to the actual effect. Click “Determined” in the lower right corner. Then click on the play, right click on the properties on the speaker, click on the level, and erase all the small red cross points inside.

6. Audio Manager settings, double-click to open the "red small speaker" in the lower right corner; or: Start - Settings - Control Panel - HD sound card. Speaker & ldquo; horn configuration & rdquo; settings.

7. Continue setting in the sound bar.

8.“Default format”Settings.

9. Microphone & ldquo; microphone effect & rdquo; settings.

10.“Default Format”Settings.

11“Device Advanced Settings”.

12. After the confirmation, the sound card debugging is basically completed.