When you want to record your own song, and you find that all the mp3 songs are filled with others' vocals, you can remove vocals from mp3 songs first.
Download Audacity, and run it.
Go to File -> Open to open a mp3 file you want to remove vocals from.
Go to Effect -> Vocal Remover.
There are three choices to select, you can choose "Simple" to remove entire spectrum, or choose "Remove frequency band" to remove vocals between the band you set, or choose "Retain frequency band" to remove vocals beyond the band you set.
Click OK, you will finish removing vocals from your mp3 songs
Download Audacity, and run it.
Go to File -> Open to open a mp3 file you want to remove vocals from.
Go to Effect -> Vocal Remover.
There are three choices to select, you can choose "Simple" to remove entire spectrum, or choose "Remove frequency band" to remove vocals between the band you set, or choose "Retain frequency band" to remove vocals beyond the band you set.
Audacity can also remove vocals from wav, flac, ogg files.