Date of Publication :7th February 2016
Abstract: This paper present a device that combined the principles of ultrasonic human echolocation and animal echolocation .This device is helpful for blind and visually impaired people. Some animals such as (bats and dolphin) sense by active echolocation, in which emitted acoustic pulses and their reflection are used to sample the environment .Bats and dolphin are highly informative compared to humans. Active echolocation is also used by some blind humans, who use signals such as tongue clicks cane taps as mobility aids. The device consists of a headset with an ultrasonic emitter and stereo microphones affixed with artificial pinnae. Methods-: The echoes of ultrasonic pulses are recorded and time-stretched to lower their frequencies into the human auditory range before being played back to the user. Results- Simple words were able to lateral depth and distance judgments. This device is working as record the echoes. Conclusion-: This device is suggests can be used effectively for environment and human auditory system. Many humans is suffer for blindness (cardiac patient) and night visions this devices uses in this people.
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- G. Jones, “Echolocation.” Current. Biol., vol. 15, no. 13, pp. R484–R488, Jul. 2005.
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