I am looking into doing some DJ work. I currently have a notebook with a sound card and Jaws 6.2. I have a old Dectalk Express synthesizer but am not using it because my notebook has no serial port. I am hooking up my notebook to my home stereo so I can use my notebook to play my mp3 library. What are my options so that while playing music my Jaws will not be heard coming through the home stereo speakers?