Room acoustics describes the way sound behaves inside a room based on sound sources also within the room. The way sound propagates, bounces off walls and is absorbed and scattered by different materials all have to be considered.nnThe parameter most commonly used in room acoustics is reverberation time which describes the rate at which sound energy decays inside a room. The reverberation time can be designed through careful placement and area coverage of acoustically absorptive materials. Whilst usually determined through spreadsheet calculations, more complex room geometry and materials can be considered through computational acoustic modelling.