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I have a finished room in the basement of my house that I want to turn into a music studio. Most of the advice found online suggest to "build a room within a room" and decoupling walls and ceiling. Now, the room is nicely finished with regular sheet rock walls and light fixtures. I would prefer not to tear down and rebuild the room as most online advice suggest.

I was thinking about applying acoustic insulation (like this one: https://www.homedepot.com/p/54-in-x-240-in-Acoustic-Insulation-Roll-7102-11054/302759769) to the walls already there.

Then install cedar planks - like the ones they use in sauna rooms. on top of that.

My question is: would that be dense enough to prevent the sound to get out of the room?

I will address the acoustics within the room on a separate post.

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    What are your standards for keeping sound in? Music studios often have to go to great lengths to soundproof rooms. In fact, you typically see "room within a room" construction with large heavy damping masses (like double-thick drywall). However, if you don't mind some of the sound getting out (especially low frequencies), you can get away with less. – Cort Ammon Jan 9 '18 at 5:00
  • @CortAmmon. basically, I am drummer and I want to be able to play drums and have band practice without disturbing my family. It doesn't have to be hermetically closed like an recording studio would be, but just enough that if I end playing drums past 10PM, I don't face the wrath of an annoyed wife, – Baratier ErebusDuHalm Jan 9 '18 at 5:07
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    fti epttech.com/copy-of-ept-xtrmply-treadway you might contact the manufacturer for installation advice. – agentp Jan 9 '18 at 12:56
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Cedar planks will not provide any benefit for anyone in the equation. For the people you don't want to disturb, it won't absorb much of the sound. And for you and the band, it will be extremely reflective, prone to feedback, and likely a poor space to record in, especially if it's a simple square room. I'm not sure what your budget is, but it will be wasted on cedar planks.

Cort Ammon and Maxwell Smart have good suggestions.

If your budget is tight/free, we always looked for used carpet. It's regularly available in dumpsters behind carpet centers. We let the staff know we were looking (so as not to worry them!), and you want to snatch it ASAP, certainly before it rains or before cats get into it, etc. Get as much as you can on the walls and get as much as you can on the floors. This will improve the acoustics in your space, but it won't make a dent on the volume that penetrates into the rest of the house!

If you have some ca$h to throw at this, frame up a room-within-a-room like @CortAmmon suggested (make it triangular or unusually shaped, at least not square) and then properly carpet the inner room, with padding below the carpet. Then hang drywall for the inner room. The thicker the better. Consider using two sheets! And if it were me and some hypothetical lottery winnings, I'd carpet the walls too, again, with padding. Next time you're in a movie theater, notice how they have fabric on the walls..

Finally, if you still have $$$ left, try lining the ceiling and walls of the outer room with natural cork, which you can get in 4'x8' sections of varying thickness, however this is not cheap. I'd prioritize the ceiling and the top parts of the walls in the outer room.

You're going to have to throw some money at this to create a sincerely isolated room. I can tell you from experience that hanging used carpet on the floor and ceiling might make the room less prone to feedback and more record-friendly, but it will not come remotely close to silencing your drums to the outside world! In that regard, Paul Logan is right!

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Soundproofing is an entire enginneering principal on its own. Not to be facetious, but you are asking for a definitive answer on soething that has near infinite variables.

Some quick notes, "solid" is not the way to stop sound. Air gaps and breaking up sound-waves is the way forward.

A bit of google on "soundproofing a room" will get you where you need to go, and likely better than a quick home depot fix. I checked and there is some excellent info available.

Good luck, and let us know what you do and how it worked out.

Max

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