Auralization of airborne sound insulation including the influence of source room

The paper describes a simple and acoustically accurate method for the auralization of airborne sound insulation between two rooms by means of a room acoustic simulation software (ODEON). The method makes use of a frequency independent transparency of the transmitting surface combined with a frequency dependent power setting of the source in the source room.

The acoustic properties in terms of volume and reverberation time as well as the area of the transmitting surface are all included in the simulation. The user only has to select the position of the source in the source room and the receiver in the receiving room. As a reference for the comparison of constructions with different transmission losses a simulation can be made with the receiver in the source room and a neutral power setting of the source.

One of the advantages of this method compared to other known methods is that the whole area of the transmitting surface is used for the simulation of sound transmission. Also the reduced clarity of the auralization due to the reverberance of the source room is inherent in the method. Currently the method is restricted to transmission loss data in octave bands.