Soundproofing of Ducts / Pipes in Basement

I've been having trouble finding information about isolating ductwork and water pipes in basements so I was wondering if anyone had any advice. I have a trunkline duct in my basement running from my furnace and hanging below the floor joists directly above the area I am building a studio. This trunkline feeds two children's bedrooms also above the studio and I am trying to find suggestions for reducing the amount of sound that makes it through the heating registers in the rooms above. I also have some water pipes that hang down a couple of inches below the joists. My plan is to hang a double layer gypsum board ceiling suspended by furring strips on isolation clips attached to the floor joists above. I have some MLV I'll put between the joists. I am thinking about building a 2x4 frame around the duct and attaching two layers of drywall to furring strips suspended from isolation clips (same as the rest of the ceiling). Does anyone have a better suggestion? Should I be doing more than this or be doing things differently? Thanks in advance for any help you can give.

Just noticed the "requirements for posting" so I am appending my post with a couple of missing details: - The music being recorded may at times include live drums and amplified guitar/bass but no death metal at extreme volumes. - My goals are: 1. Be able to play this music live during the day without causing too much annoyance to the rest of my family. 2. Be able to monitor at any time of night without waking up kids. 3. Eliminate footfall noise from above. Thanks again.

Sorry, still learning how to use the forum. I'm attaching the photo that goes with the drawing in my last reply... There is also an I beam which penetrates the studio wall which I was planning on handling the same way as the ducts.

What you are suggesting is fine - stuff it all with insulation and you'll find your heating bill goes down ;) cheers john

I like the added benefits! :P I talked to the heating and cooling guy I've been working with and he suggested that maybe replacing my existing sheet metal ducts with duct board may also help. Have you had any experience with this? This would cost me over $700 U.S. so I am hesitant to say yes unless it would provide a lot of benefit.

You have to wrap it in insulation anyway so can't see any advantage. Save your 700 for more important stuff :wink: cheers john

Thanks for your help John. I feel comfortable about starting with the ceiling now.