involuntary sensory inhibition

Saturday, October 24, 2009 | |

Taken from wikipedia

When two identical sounds (i.e., identical sound waves of the same perceived intensity) originate from two sources at different distances from the listener, the sound created at the closest location is heard (arrives) first. To the listener, this creates the impression that the sound comes from that location alone due to a phenomenon that might be described as "involuntary sensory inhibition" in that one's perception of later arrivals is suppressed.

This would be quite interesting to try out in the field as part of an installation.