Diffuse Sound Field

A space with many reflecting surfaces and small sound absorption. Repeated reflections and diffractions of sound within a space result in good diffusion and a uniform distribution of sound energy.

A diffuse sound field is typically created in gymnasia, swimming pools and interior spaces with marble, concrete or glass walls, but it also can occur outdoors with sounds coming from many directions, such as in urban streets lined with high-rise buildings. See: Canyon Effect, Lo-Fi.

The reflected portion of the sound field is called the reverberation field or reverberant field, and is measured by the reverberation time.

See: Acoustic Space, Transient. Compare: Anechoic Chamber, Free Field.

Canadian Pacific train station, Vancouver, B.C. whose marble interior creates a diffuse sound field.