A stimulating use of cork as an NVH material is the usage of cork triggered under tile

The normal specific sound absorbing coefficient determines the sound-attenuating properties of sound-absorbing materials, which are made of porous polyurethane foam. The transition is typically blocked off with non-porous, heavy sound barrier NVH materials. The resonance structure to which these materials are attached uses the sound damping materials to reduce structural vibrations. These materials are transformed into products, which are then used all over the body of the vehicle.

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https://www.gatorledger.com/nvh-materials-inhibit-and-reduce-unwanted-causes-of-noise-and-vibration-in-automotive/