Mouth-clicks used by blind expert human echolocators - signal description and model based signal synthesis.

ABSTRACT: Echolocation is the ability to use sound-echoes to infer spatial information about the environment. Some blind people have developed extraordinary proficiency in echolocation using mouth-clicks. The first step of human biosonar is the transmission (mouth click) and subsequent reception of the resultant sound through the ear. Existing head-related transfer function (HRTF) data bases provide descriptions of reception of the resultant sound. For the current report, we collected a large database of click emissions with three blind people expertly trained in echolocation, which allowed us to perform unprecedented analyses. Specifically, the current report provides the first ever description of the spatial distribution (i.e. beam pattern) of human expert echolocation transmissions, as well as sp

SUBMITTER: Thaler L 

PROVIDER: S-EPMC5578488 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature