navigating space from sounds

-listen for cars before crossing the street
-new email audio alert
-computer error sound
-video game sounds (jumping = "boing" sound)
-cut off from real world sounds by MP3 = more reliant on visual cues
-blind = reliant on audio cues
-train station/airport announcements
-enhance website navigation
-echolocation

sight vs sound
If I made a space that worked around sound cues, I should be able to navigate the space with my eyes closed. Could be sounds for direction changes. Half way through the space, I could mix it up. A sound could play (ordering the user switch to visual). The user would have to rely on sight (not sound) and there could be sound effects to try an disorientate them.

Wireframe (audio drawing) - John Wynne
With many speakers he uses sound in a darkened room to "show" the space to the viewer. There is nothing to see and the audio is site specific so it is impossible to document. I wonder if he could make the space feel smaller or larger by modifing the volume of the speaker sounds? The sounds would have to get louder/higher as they come closer.