This video is a sketch of a possible installation. Imagine the circle is the person moving in the room. As they get closer to the centre, where there is X object, the low frequency is louder, when further away, the high frequency is louder.
This is an example of how sound frequencies may be used to increase perception of presence and movement through space. It's well-known the physical effect different frequencies can have. Artist-wise, Iannis Xenakis' work with sound and sculpture is an example.
