Have you tried these?
GreenStuf® Autex Soffit & Slab Liner (ASL)
Designed as a thermal and acoustic lining for concrete soffits, slabs and car park ceilings.
GreenStuf® Baffleblock™
Acoustically designed to be layer stacked above partition walls to reduce sound from moving through ceiling cavities.
GreenStuf® Acoustic Sound Blanket (ASB)
GreenStuf® Acoustic Sound Blanket (ASB) is an acoustic ceiling overlay to help make spaces quieter in commercial applications.