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In this work, a novel countermeasure is proposed for protecting the speaker verification (SV) system to replay based spoofing attacks. The replay attacks refer to the attacks made with recorded speech of a particular speaker by playing them back to the system, claiming as an authentic speaker. On analyzing live and recorded speech examples, it was noted that the low frequency contents get suppressed...
This work explores the nature of warping path and the shape of the gross spectrum for speaker information in text-dependent speaker verification under degraded condition. The nature of warping path is observed to follow a similar trend for given speaker across different sessions, due to the style of spoken delivery. The deviation of the warping path from the diagonal is taken as feature for discrimination...
Traditional models state that both prey and predator population depend each other and they follow same cycle indefinitely until an external force is used. In this manuscript the effect of epidemics on two/three species prey-predator system under the influence of epidemics is studied using time delay models. A z-shaped function in prey-predator mathematical model to find the effect of epidemics is...
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