If you are encountering poor sound when you use the SC Recorder, this may be caused
by system resources.   If you have many windows or programs open, all of these take
system resources.  As a test, please reboot your machine and then once your machine
comes back up again, open your browser and go to a video, and then open Down Surgeon
and use the SC Recorder module and do not open any other programs. 

See whether your sound quality improves when you have all of your system resources available
to be used.