Sound proofing floor

I’m in a condo and my downstairs neighbor can hear my music. I’m looking into putting a sound barrier over the cement floor and under the carpet.

More information would be helpful.

Concrete floor? Is the Condo a wood framing structure? Therein the concrete floor may only be around 2" to 3" thick of a light weight sound attenuation concrete.

What is your cooling/heating system for the condo? Self contained for each Condo unit? Like maybe a split cooling/heating unit?

What I’m trying to nail down is that your music is strictly 100% being transferred through the floor? If the sub floor structure is wood with wood floor joists with 2" to 3" thick of concrete poured as a cap on the wood sub floor there is a good chance the condo structure was framed and the floor concrete cap was poured after the outside wall and inside wall partitions were built. If that is how the condo unit is built the music sound waves will transfer to the walls and down to the floor wood sub floor/joists to the Condo unit ceiling below.

Things you have tried to help stop your music from being heard by your neighbors in the Condo unit below.

Turn down the volume of your music.

If you have a Sub speaker stop using it.

If you are using spikes on the speakers or speaker stands remove them.

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We used a rubber membrane to help cut the trnasmission of sound through a concrete black wall at school between the dance studio and the recording studio.  It really cut the sound down but it may only be a wall treatment. can't remember the brand

I've done a little soundproofing over the years, largely to isolate the noise from an air compressor used for my tonearm. I used a product I bought from Acoustical Solutions in the Virginia area, a mass loaded vinyl/melamine sheet, sold in bulk, which is very effective. Not sure you would use that, but those folks do know soundproofing and sell the products- worth a call.  I suspect you'll wind up needing a suspended floor, similar to what recording studios use but your needs may be even greater if you are dealing with neighbors who are hearing your music.

And the transmission of sound may be more than the floor- air systems, lighting conduits, any small opening or aperture is a potential leak. I found this with a small duplex sized cable pass-through, which I solved with melamine (Magic Eraser, originally meant as a soundproofing material). Doors are also "leaky" --you are down to the level of smaller than a "tiny bug" that can pass through. And, though I'm no expert, I suspect the walls, unless also concrete, will also act as membranes. 

Often, people will hire an acoustician/specialist to do design and sourcing, which will add to the expense. Not an inexpensive proposition even if you source the materials without a consultant. You might give the folks mentioned above a call--they are professional, and can give you a rough idea of what this may entail. 

I've known a few people over the years who leased or owned another space for their hobbies to keep them separate from their living quarters. 

Be interested to see what you learn simply for my own knowledge. 

Good luck,

It is a cement floor with an 8lb carpet pad and carpet. At 6 to 8 inches of cement, I live in Florida and the complex was built in 2006. I have no other noise issues, just through the floor.

A 6" to 8" concrete floor is a very unusually thick amount of concrete! However, if that is correct, your sound may find its way down through the walls instead. I find it hard to believe it would go through 8" of concrete. The only sound that would are the very low frequencies through vibrations, but that's it. You need to find out what frequencies they can hear.