Ibrahim

I want to record several things with sound, but cannot figure out how to do it. For example how to record with sound 1.something that is streaming from youtube, 2.a lecture that is streaming live. How do I do the sound settings? . Specifically, how do I use the "Filter drive" and "mm device"? part of the problem is that I dont understand the technical language: what does "system audio" mean? what is the meaning of "another application"? what is "administrator privilages"? thank you