On Sep 30, 9:33*pm, bob haller wrote:
Spray foam insulation to stop all air exchange, air movement carries
noise.

theres special drywall that doesnt conduct sound..... and special
acoustic tiles too.

there are pros that design such rooms.

care should be taken some foam is highly flammable

Thanks for the tip on some of the foam being highly flammable.

I will check into different types of drywall and insulation.