The acoustic insulation market is very large and flooded with huge variety of soundproofing materials. So, choosing the right material for interior designing is a very difficult task. But you can choose the right product by checking its effectiveness.
You can check the effectiveness of the material by the following:
Impedance tools- It can be used in free field situations to test the transfer of sound
Impact Insulation Class- Single-number rating indicates the amount of impact sound insulation provided by a wall or floor assembly. High Quality is 75 IIC and minimum quality is 55 IIC
CAC and STC Test for industry related noise challenges- To check how effective sound-blocking materials are for ceilings and walls
NRC for Sound absorption material testing- The higher the NRC, the better the product absorb the sound. Choose product whose NRC value is above .80
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