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Stefan cel Mare
University of Suceava
Faculty of Electrical Engineering and
Computer Science
13, Universitatii Street
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ROMANIA

Print ISSN: 1582-7445
Online ISSN: 1844-7600
WorldCat: 643243560
doi: 10.4316/AECE


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  2/2012 - 10

 HIGHLY CITED PAPER 

The Effects of the Acute Hypoxia to the Fundamental Frequency of the Speech Signal

MILIVOJEVIC, Z. N. See more information about MILIVOJEVIC, Z. N. on SCOPUS See more information about MILIVOJEVIC, Z. N. on IEEExplore See more information about MILIVOJEVIC, Z. N. on Web of Science, MILIVOJEVIC, M. See more information about  MILIVOJEVIC, M. on SCOPUS See more information about  MILIVOJEVIC, M. on SCOPUS See more information about MILIVOJEVIC, M. on Web of Science, BRODIC, D. See more information about BRODIC, D. on SCOPUS See more information about BRODIC, D. on SCOPUS See more information about BRODIC, D. on Web of Science
 
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Download PDF pdficon (629 KB) | Citation | Downloads: 582 | Views: 3,734

Author keywords
speech analysis, speech processing, fundamental frequency, dissonant frequency, acute hypoxia

References keywords
speech(10), signal(6), frequency(5), milivojevic(4), hypoxia(4), fundamental(4)
Blue keywords are present in both the references section and the paper title.

About this article
Date of Publication: 2012-05-30
Volume 12, Issue 2, Year 2012, On page(s): 57 - 60
ISSN: 1582-7445, e-ISSN: 1844-7600
Digital Object Identifier: 10.4316/AECE.2012.02010
Web of Science Accession Number: 000305608000010
SCOPUS ID: 84865296358

Abstract
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When people that live at the small altitudes (up to 400 m above the sea level) climb on the mountain, they are exposed to the effects of an acute hypoxia. As a consequence, theirs oxygen concentration decreases in the tissue. This paper presents the analysis of the acute hypoxia effects to the speech signal at the altitudes up to 2600 m above the sea level. For the experiment, the articulation of vowels (A, E, I, O, U) from the test group of persons was recorded at different altitudes, which creates the speech signal database. The speech signal from database is processed by the original algorithm. As the results, the fundamental frequency and the energy of dissonant intervals of speech signal are obtained. Furthermore, the acute hypoxia effect to the energy distribution in the dissonant intervals of the speech signal is analyzed. At the end, the comparative analysis of the acute hypoxia effects shows that the level of the hypoxia can be determined by the change of the fundamental frequency and the energy of the dissonant intervals of speech signal. Hence, it is possible to bring conclusions about the degree of hypoxia, which in many situations can be of importance for avoiding catastrophic consequences.


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Faculty of Electrical Engineering and Computer Science
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