How does win7 record the internal sound of the computer? How to record the sound of a sound card on a computer

The function of recording a sound card is realized by controlling the sound card through the control panel.

1, click--[Start]--[Control Panel]--[Hardware and Sound]--[Manage Audio Devices].

2, select [Record], right click in the blank area of ​​the window, select [Show disabled devices], and then add a [Stereo Mix]. Select, right click to select [Enable], and set [Stereo Mix] as the default device. In addition, in order to prevent mixing, we can set [Microphone]--[Right button]--[Disable]. Figure:

3, double-click [Stereo Mix]--[Level], drag the following sound bar to the maximum. Select [Advanced] and select [Studio Quality]. Figure:

4, click [Apply]--[OK].

5. Open the [Recorder] tool in your computer and record it.