Hey Tony, of course!

Large undertaking, but this past winter, before we started a new 4-room building, we went through and soundproofed 7 walls and five first floor ceilings. Now, this isn't a total, 100% silent solution (on wood framing 40yrs old, there really aren't any perfect solutions - mostly due to flanking noise), but it's made a huge difference on spoken word and TV noise, which is what we set out to address. In our 4-room bldg we did the same application with the exception of the center demising wall being a full double stud setup 2x6 with a 2" gap in the middle, and a gypcrete pour upstairs.

If anyone has any sound proof questions, I'm happy to offer insight.