Hi

I'm hoping to reduce woodworking noise from my new shed. It's a steel shed. My plan is to line the walls with Gyprock and put insulation between the steel cladding and the Gyprock. The choice of insulation appears to be between Quietstuff (Autex) ($12 sq m), Soundscreen (CSR) $11/sq m, and Earthwool Sound control batts (Knauf)$5/sq m.

I'd be grateful for any advice as to which is the best of these (for equivalent R rating) or any experience with them.

Stewart