Since streaming sya, the easiest way is to just buy a aux cable (male-male end) and plug on end on the audio out plug of your sound card and plug the other end sa audio in or mic in...

Tapos use a sound recording software... Malaki nga lang file mo neto kasi WAV ang format neto for sure.

Mas effective kung eto gawin mo.

http://all-streaming-media.com/record-audio-stream/