The Effects of the Active Hypoxia to the Speech Signal Inharmonicity
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Date
2014-06
Authors
Milivojevic, Zoran N.
Brodic, Darko
Milivojevic, Marina Z.
ORCID
Advisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
Společnost pro radioelektronické inženýrství
Abstract
When the people are climbing on the mountain, they are exposed to decreased oxygen concentration in the tissue, which is commonly called the active hypoxia. This paper addressed the problem of an acute hypoxia that affects the speech signal at the altitude up to 2500 m. For the experiment, the speech signal database that contains the articulation of vowels was recorded at different alti¬tudes. This speech signal was processed by the originally developed algorithm, which extracted the fundamental frequency and the inharmonicity coefficient. Then, they were subjected to the analysis in order to derive the effects of the acute hypoxia. The results showed that the hypoxia level can be determined by the change of the inharmonicity coefficient. Accordingly, the degree of hypoxia can be estimated.
Description
Citation
Radioengineering. 2014, vol. 23, č. 2, s. 665-670. ISSN 1210-2512
http://www.radioeng.cz/fulltexts/2014/14_02_0665_0670.pdf
http://www.radioeng.cz/fulltexts/2014/14_02_0665_0670.pdf
Document type
Peer-reviewed
Document version
Published version
Date of access to the full text
Language of document
en