Improved method of heuristic classification of vowels from an acoustic signal

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Improved method of heuristic classification of vowels from an acoustic signal

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Improved method of heuristic classification of vowels from an acoustic signal

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20202 - Communication engineering and systems

Projekt

<a href="/cs/project/EF16_019%2F0000867" target="_blank" >EF16_019/0000867: Centrum výzkumu pokročilých mechatronických systémů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Turkish Journal of Electrical Engineering and Computer Sciences

ISSN

1300-0632

e-ISSN

—

Svazek periodika

26

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

TR - Turecká republika

Počet stran výsledku

6

Strana od-do

2900-2914

Kód UT WoS článku

000454658300010

EID výsledku v databázi Scopus

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