Improved method of heuristic classification of vowels from an acoustic signal
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F18%3A10241596" target="_blank" >RIV/61989100:27240/18:10241596 - isvavai.cz</a>
Result on the web
<a href="http://journals.tubitak.gov.tr/elektrik/issues/elk-18-26-6/elk-26-6-10-1801-292.pdf" target="_blank" >http://journals.tubitak.gov.tr/elektrik/issues/elk-18-26-6/elk-26-6-10-1801-292.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3906/elk-1801-292" target="_blank" >10.3906/elk-1801-292</a>
Alternative languages
Result language
angličtina
Original language name
Improved method of heuristic classification of vowels from an acoustic signal
Original language description
This paper describes research in the field of the improved methodology of the classification of vowels /a, a:/ , /epsilon, epsilon:/ , /I, i:/ , /o, o:/ , and /u, u:/ (vowel symbols according to IPA, i.e. International Phonetic Alphabet). The aim is to develop an improved method enabling the automatic allocation of vowel symbols to the corresponding time segments of acoustic recordings of an undisturbed speech signal. The combined classification method is based on finding frequencies of the first two local maxims (formants) in a smoothed linear predictive amplitude spectrum (LPC, linear predictive coding) and zero-crossing values of each speech active voiced short-term segment of the recording. Based on these monitored values, simple heuristic conditions are arranged for the classification of the respective vowel. Implementation of the algorithm was realized using the MATLAB environment and its Graphical User Interface (GUI) was used for the user interaction. Verification of the success rate of vowel classification was done using recordings of forty speakers (twenty men and twenty women), where each speaker repeated the vowels repeatedly with short successive pauses. The success rate of recognizing vowels is classified and evaluated based on results obtained from our designed method.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20202 - Communication engineering and systems
Result continuities
Project
<a href="/en/project/EF16_019%2F0000867" target="_blank" >EF16_019/0000867: Research Centre of Advanced Mechatronic Systems</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Turkish Journal of Electrical Engineering and Computer Sciences
ISSN
1300-0632
e-ISSN
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Volume of the periodical
26
Issue of the periodical within the volume
6
Country of publishing house
TR - TURKEY
Number of pages
6
Pages from-to
2900-2914
UT code for WoS article
000454658300010
EID of the result in the Scopus database
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