if you want to change to a piece of music you like, you have to prepare a short audio file in wav format in advance. Other formats are not supported. Just select the sound file you prepared in advance in "Browse".
wav sound files can be converted with music files of other formats, or recorded directly with a "tape recorder" program on the computer, and this sound file can be cut and edited. Of course, it is not necessary to be too long. Finally, save it in the folder c:\windows\media for easy finding.
To cancel this function, just do the opposite, and select the file "Start Navigation" as "None".
to increase the sound, just edit the sound file. The editing method is to open the sound file to be edited with the "recorder" included in the computer system, click "Effect"-"Increase Volume" in the menu, and then save it.