CANYON EFFECT
The REVERBERATION produced by multiple REFLECTIONs of sound in streets framed by high buildings. This effect raises the AMBIENT NOISE LEVEL in urban settings and makes it difficult to localize sounds.
See: DIFFRACTION, DIFFUSE SOUND FIELD, SOUND PROPAGATION (section 3b). Compare: FREE FIELD, PARABOLIC REFLECTOR, REFRACTION.
home