You bring your source material, a vinyl record, for example, into your computer via the Line In port on your mobo, or soundcard, record the parts of it you want in Audacity, turn those parts/songs ...
Connect your stereo amplifier to your PC's sound board and use the free, open-source Audacity audio-conversion software to create MP3s, WMAs, or other digital copies of your analog tunes. Dennis ...
Audacity, an open source multitrack audio editor, has versions for Linux/Unix, MacOS and Windows. If all you do with audio files is play them, then Audacity could be much more than you need. This is ...