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Unfortunately, the lie detection method has become very much in demand, especially nowadays, where people are lying to each other, and although the lie detection questions, which include repeating the question, are the method that people use with their young children only, but it is also suitable for adults and the liar falls into its trap, even if it is large. .And because many would like to know the method of detecting lies, we have prepared this application, in which we show lie detection by voice and many other strategies.