How to properly use the built-in sound card USB speaker under Win7

        
How to use:
1. Connect the speaker to the USB port of the computer. Under normal circumstances, after connecting the USB speaker, the computer will automatically switch the sound card to this USB sound card. If the system does not switch, you can restart the speaker test. Try, if you still haven't switched after rebooting, click the small speaker icon in the system tray area to see two sound indicators. There should be only one under normal circumstances.
2, click Start → Control Panel & Rarr; Sound, enter the system sound settings interface, just click the right mouse button on the USB sound card, select “ set as the default device & rdquo; and “ set as the default communication device & rdquo; ;
3, after the setting is completed, the USB sound card under the “Play & rdquo; tab will be marked with a green check mark, click the right mouse button on it, select “Test”, listen to the sound of the speaker. If there is a sound, it means the setting is successful, click the following "OK"; you can;
4, now you can click on the small speaker icon in the system tray area, only a volume indicator is displayed, now adjust the volume The slider can adjust the volume of the speaker normally;
5, if you do not want to use the external USB speaker, you only need to remove the speaker from the computer's USB interface, the system will automatically switch to the computer's own sound card work, no need Artificial settings. If the problem that cannot be used normally occurs again when connecting the USB speaker next time, please refer to the above method to solve it.
Note: At present, most USB audio can be automatically recognized under Win7 without installing the driver. If it is not recognized properly, you can check whether there is a random drive CD and install the test.