Sökresultat - W. Majewski
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MEL frequency cepstral coefficients (MFCC) of original speakers and their imitators
Publicerad 2014-04-01Hämta fulltextThe results of intra- and interspeaker distances between MFCC vectors obtained from speech samples of eight well-known Polish personalities and their imitations performed by cabaret entertainers are presented and discussed. The intraspeaker distances between MFCC vectors representing normal and disg...
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The works of the Institute of Metallurgy and Metallurgical Sciences at the Warsaw University of Technology, and the person of Jan Czochralski
Publicerad 2018-12-01Hämta fulltextThe article discusses the issues of implementation of important achievements in the field of metallurgy (including armored weapons, fortifications and the navy), under the supervision of prof. Jan Czochralski, who played an important role in the development of the armed forces of the Second Polish...
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Odpowiedź na pracę dr. Pawła E. Tomaszewskiego pt. „Komentarz do artykułu Mariusza W. Majewskiego opublikowanego w Studia Historiae Scientiarum 17 (2018), ss. 89–117”
Publicerad 2019-11-01Hämta fulltextNiniejszy artykuł jest odpowiedzą na polemiczny komentarz dr. Pawła E. Tomaszewskiego, opublikowany w bieżącym tomie czasopisma Studia Historiae Scientiarum 18 (2019), dotyczący wcześniejszego artykułu autora (M.W. Majewskiego) na temat prac Instytutu Metalurgii i Metaloznawstwa przy Politechnice...
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Parametrical patterns of voices in forensic applications
Publicerad 2014-05-01Hämta fulltextA method of speaker recognition based on visual comparisons of sets of voice patterns is presented. These sets contain graphical patterns obtained from parameter extraction in the time-domain, frequency-domain and LPC (Linear Predictive Coding). In comparison to classical spectrograms, the parametri...
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Evaluation of the effectiveness of parameters of the global description of words in simple automatic speech recognition systems
Publicerad 2014-05-01Hämta fulltextIn this paper, oriented at the so-called simple systems of speech recognition, the effectiveness of 6 sets of parameters in the global description of words in a given vocabulary was analysed. The usability of simple parametrization methods and such parameters as: density of zero-crossings, distribut...
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