Abstract
Audio CAPTCHA is a reverse Turing test to discriminate the user as human or bot using audio as a medium. As W3C guidelines mandate the need of accessibility of web for people with disabilities like visual or motor impairment, audio CAPTCHA is an essential form of CAPTCHA for web security. Very less work has been done in this area as compared to other types of CAPTCHAs like text, image, or video. Hence, an evaluation of current scenario is important in enhancement of audio CAPTCHA. This paper is an attempt to understand existing work and its accessibility in the arena of audio CAPTCHA. It also explores the obstacles in use of audio CAPTCHA.
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CITATION STYLE
Kulkarni, S., & Fadewar, H. (2018). Audio CAPTCHA techniques: A review. In Advances in Intelligent Systems and Computing (Vol. 712, pp. 359–368). Springer Verlag. https://doi.org/10.1007/978-981-10-8228-3_33
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