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. 2018 Jul 5;13(7):e0199389. doi: 10.1371/journal.pone.0199389

Fig 1. Virtual reality visualisation and implementation of simulated echolocation and distance-dependent hum volume modulation (humming).

Fig 1

(A) Example of a randomly-generated maze with a single path to goal of 7 cube steps. Orange glow indicates humming boundary in the humming sonification. Golden star indicates goal. Red cross + black dot indicate starting position. (B) Example of a corridor with randomly positioned obstacles. Orange glows and red dotted lines indicate humming boundaries in the humming sonification. Golden star indicates goal. Red cross + black dot indicate starting position. (C) Virtual reality visualisation of the maze. (D) Implementation of simulated echolocation. A pool of 900 particles is projected along a 30 × 30 grid array of rays from the (x, y, z) position of the Tango. (E) Virtual reality visualisation of the obstacle corridor.