Need advise how to soundproof tile floor in condo remodel. Want mostly lessen music and TV sound going down below. Any affordable insulation materials available here to lay out before tiling? Thank you for any feedback. MS>

Need advise how to soundproof tile floor in condo remodel. Want mostly lessen music and TV sound going down below. Any affordable insulation materials available here to lay out before tiling? Thank you for any feedback. MS>

Are you sure the sound is travelling through the floor?
You want to stop your sound going through the floor, is this right?
I would have thought the composition of the floor, would stop most sound. How thick is the concrete plus existing tiles?

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Concrete walls and floor should be quite a good noise dampener as its heavy and dense.

 

Maybe better / easier to isolate your speakers from the floor or wall.... when the locals are making somtam

directly on a concrete floor with mortar and pestle even 3 floors below it  resonates through the whole building...but ask/tell them to put a towel under the mortar and the noise is almost silenced.

Thank you kindly. Good points. Probably more important walls & ceiling.  Regards.  MS>

Concrete floors transmit impact vibration extremely well. Impact noise is things like furniture scraping across floors, doors/cupboards slamming, footsteps, things being dropped. This can include low frequency sound from loudspeakers, particularly if they are in contact with the floor.

Air-borne noise (voices, TV etc) is not so well transmitted through concrete and is usually not a problem between floors.

To reduce impact noise going downwards you should fit some sort of noise dampening rubber membrane before tiling. Not easy to find here. https://www.thermal-economics.co.uk/main_products/isorubber-top/

Another less-effective option is to use wooden flooring rather than tiles, though that has its own problems (longevity).

Apart from that you can disassociate the false ceiling in the condo below from the real floor/ceiling above it. In most Thai condos the false ceiling is suspended directly from the real ceiling by wires which allows all the impact noise through, not helped by a complete lack of any insulation and the very thin and hard nature of Thai plasterboard as used for suspended ceilings. It really is the worst thing you could possibly imagine.
Ideally you should create an entirely self-supported second ceiling, with a noise-deadening membrane above it.
Above all there should be NO contact between the real ceiling and the false one. If you must have contact, use acoustic hangers. https://www.thermal-economics.co.uk/products/acoustic-products/ancillary-products-acoustic/

Thai builders will think you are insane, but they are the people who build houses and condos with no heat or sound insulation at all so I wouldnt worry too much about their opinions.

So much scope for properly built buildings here, yet I have never seen a single example of one.