In this paper proof of the Polignac's Conjecture for gap equal to eight is going to be presen... more In this paper proof of the Polignac's Conjecture for gap equal to eight is going to be presented. It will be shown that consecutive primes with gap eight could be obtained through two stage sieve process, and that will be used to prove that infinitely many primes with gap eight exist. The proof represents an simple extension of the recently presented proof that infinitely many sexy prime exist. The major contribution of this paper is presentation of all elementary modules that are necessary for the proof of Polgnac's conjecture in general case.
Power spectral density of speech in Serbian language
2012 20th Telecommunications Forum (TELFOR), 2012
Power spectral density represents one of important characteristics of speech. The estimation of i... more Power spectral density represents one of important characteristics of speech. The estimation of its value is done using various approaches and algorithms. In this paper, the power spectral density of speech in Serbian language is calculated by applying severel methods. For that purpose,. the speech base is formed in a such way that 8 speakers read the chosen phonetically balanced text. The effects of several parameters in corresponding methods for power spectral density estimation are analyzed. The results obtained by using different duration of speech samples, parameters of recording, date when the recording is done and speakers are analyzed and mutually compared. The mean values of power spectral density of speech in Serbian language are compared to the corresponding values of speech in other languages.
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Papers by Marko Jankovic