scholarly journals Acoustical Comparison between /u/ and /u:/ Arabic Vowels for Non-Native Speakers

Author(s):  
Ali Abd Almisreb ◽  
Nooritawati Md Tahir ◽  
Ahmad Farid Abidin ◽  
Norashidah Md Din

<p>The articulation of Arabic phonemes is essential for the Malay community since Arabic language is mandatory to perform worship. Hence, in this paper, an acoustical analysis of Arabic phonemes for vowels /u/ and /u:/ is discussed based on tokens pronounced by Malay speakers. The experimental results showed that the Malay speakers are inclined to utter these Arabic phonemes similar to the native speakers and it was also found from the analysis that the vowel /u/ and /u: was articulated as high-back vowels. Conversely, the vowel /u/ was located lower than /u:/ as in the vowel-space. Alternatively results also showed that /u/ and /u:/  is higher than the other vowels specifically /a/ and /a:/. In addition, the statistical analysis showed that the formant frequencies of both short and long dummah for formant frequency F1, F2 and F3 have more variation in terms of /u/ as compare to /u:/. In contrast formant frequency F4 and F5 are more diversity in terms of /u:/.</p>

2019 ◽  
Vol 4 (2) ◽  
pp. 402-410
Author(s):  
Jason A. Whitfield

Purpose Speakers with Parkinson disease (PD) often exhibit hypokinetic dysarthria, which affects speech articulation. Vowel space metrics based on formant frequencies have been used to examine vowel articulation in speakers with PD. Although data from a number of studies suggest that speakers with PD exhibit smaller acoustic vowel space areas than control speakers, a handful of studies did not observe differences in vowel space area between speakers with and without PD. One potential factor explaining the inconsistent performance of traditional vowel space metrics is that these point-based metrics undersample the formant space to adequately capture between-groups and within-group differences in articulation. This article discusses recent advances in vowel space assessment that augment traditional vowel space metrics by examining the distribution of the entire formant frequency trace. Conclusion A general approach to obtaining these metrics is discussed along with clinical implications for vowel space assessment in speakers with PD.


2014 ◽  
Vol 1 (2) ◽  
pp. 313-328
Author(s):  
Hisham Adam

The aim of this paper is to examine the acoustic characteristics of Arabic vowels as produced by Palestinian Arabic-speaking Broca’s aphasics compared to normal speakers. Five subjects diagnosed with Broca’s aphasia and five normal speakers residing in the West Bank participated in this study. The subjects produced 240 vowel tokens of the eight Arabic vowels (/i:/, /i/, /e:/, /a:/, /a/, /o:/, /u:/ and /u/,). The samples were analyzed using PRAAT and the formants F1 and F2 of the eight Arabic vowels were measured. F1 and F2 values were compared to the data in the literature. Comparisons among speakers of Palestinian Arabic indicated that Broca’s aphasics’ formant frequencies were significantly different to those of normal speakers, showing that formant frequencies of F1 and F2 are generally higher among Broca’s aphasics compared to the control group. Furthermore, the findings reveal that the acoustic vowel space of Broca’s aphasics is more centralized compared to the control subjects. The results also indicate that Broca’s aphasics were able to maintain the phonemic contrast between the long and short vowels. In general, the results may contribute to neurolinguistic research across different languages, especially given that Palestinian Arabic is studied significantly less than other Arabic dialects. Furthermore, the results may have clinical applications when evaluating and/or treating Palestinian Arabic-speaking Broca’s aphasics.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
S.V Narasimhan ◽  
W.G.S.S Karunarathne

This study was conducted to document the effect of age, gender and vowel type on vowel space area in Sinhala language. Three groups of participants were employed. Group 1 included 20 children, Group 2 included 20 adults and Group 3 consisted of 20 elderly subjects. All the subjects spoke the dialect of central province of Sri Lanka. Words consisting of three Sinhala short vowels /a/, /i/ and /u/ in were recorded. Formant frequencies of vowels were extracted and vowel space area was constructed. The results showed that the formant frequencies were significantly higher for children compared with those of adults. Female subjects had significantly higher formant frequency values than male subjects. Effect of vowel types were also significant on the formant frequencies and vowel space area. Sinhala also follows universal criteria of resonance characteristics and vocal tract constriction. Keywords: vowel space area, formant frequencies, Sinhala, vowel articulation


2014 ◽  
Vol 57 (1) ◽  
pp. 1-15 ◽  
Author(s):  
Rebecca W. McGowan ◽  
Richard S. McGowan ◽  
Margaret Denny ◽  
Susan Nittrouer

Purpose Ecologically realistic, spontaneous, adult-directed, longitudinal speech data of young children were described by acoustic analyses. Method The first 2 formant frequencies of vowels produced by 6 children from different American English dialect regions were analyzed from ages 18 to 48 months. The vowels were from largely conversational contexts and were classified according to dictionary pronunciation. Results Within-subject formant frequency variability remained relatively constant for the span of ages studied. It was often difficult to detect overall decreases in the first 2 formant frequencies between ages 30 and 48 months. A study of the movement of the corner vowels with respect to the vowel centroid showed that the shape of the vowel space remained qualitatively constant from 30 through 48 months. Conclusions The shape of the vowel space is established early in life. Some aspects of regional dialect were observed in some of the subjects at 42 months of age. The present study adds to the existing data on the development of vowel spaces by describing ecologically realistic speech.


ALQALAM ◽  
2015 ◽  
Vol 32 (2) ◽  
pp. 284
Author(s):  
Muhammad Subali ◽  
Miftah Andriansyah ◽  
Christanto Sinambela

This article aims to look at the similarities and differences in the fundamental frequency and formant frequencies using the autocorrelation function and LPCfunction in GUI MATLAB 2012b on sound hijaiyah letters for adult male speaker beginner and expert based on makhraj pronunciation and both of speaker will be analysis on matching distance of the sound use DTW method on cepstrum. Subject for speech beginner makhraj pronunciation are taken from college student of Universitas Gunadarma and SITC aged 22 years old Data of the speech beginner makhraj pronunciation is recorded using MATLAB algorithm on GUI Subject for speech expert makhraj pronunciation are taken from previous research. They are 20-30 years old from the time of taking data. The sound will be extracted to get the value of the fundamental frequency and formant frequency. After getting both frequencies, it will be obtained analysis of the similarities and differences in the fundamental frequency and formant frequencies of speech beginner and expert and it will shows matching distance of both speech. The result is all of speech beginner and expert based on makhraj pronunciation have different values of fundamental frequency and formant frequency. Then the results of the analysis matching distance using method DTW showed that obtained in the range of 28.9746 to 136.4 between speech beginner and expert based on makhraj pronunciation. Keywords: fundamental frequency, formant frequency, hijaiyah letters, makhraj


Author(s):  
علاء حسنى المزين (Alaa Hosni)

كان من أهم الآثار الإيجابية للصحوة الإسلامية التى عمت العالم الإسلامى بشكل ملحوظ منذ أوائل السبعينيات فى القرن العشرين زيادة إقبال الشعوب الإسلامية على تعلم اللغة العربية، وبدأ الاهتمام الحقيقى لجامعات العالم الإسلامى بتوفير مساقات متخصصة لهذا الغرض منذ أوائل الثمانينات، وكانت الجامعة الإسلامية العالمية بماليزيا التى أسست سنة 1983 من أنشط الجامعات فى هذا الصدد، وهو نشاط استلفت نظر الباحث إذ وجده يستحق الرصد والتوثيق العلمى، والمراجعة إذا اقتضت الضرورة لا بهدف الإشادة بالتجربة بل رغبة فى الإفادة والاستفادة من قبل المختصين من المهتمين بهذا الميدان الحيوى من ميادين خدمة اللغة العربية بل خدمة الإسلام، وحضارته نظرا للارتباط الوثيق بين اللغة العربية وهذا الدين الحنيف باعتبارها لغة كتابه الخالد، والمعلم الرئيس من معالم الهوية الإسلامية المميزة والصمود الحضارى.*****************************************************One of the most positive effects of the Islamic awakening since the early seventies, in the twentieth century, which spread across the Islamic world in a significant manner, has been the increased Muslims’ interest in learning the Arabic language all over the world. There began a real interest in the universities of the Muslim world for the Arabic language by providing specialized courses for this purpose since the early eighties and  the International Islamic University Malaysia established in 1983 has been the most active university in this regard. And this activity of the university drew the interest of the researcher who found it worthy of investigation and scientific documentation as well as of revision, if necessary, not in order to pay tribute to the experience, but for taking advantage and learning from specialists interested in this vital field of the fields of Arabic language service which is actually service of Islam and its civilization considering the strong connection between Islam and the Arabic language, the language of the Qur’Én , the most distinctive feature of Islamic identity and resilience of Islamic civilization.


2016 ◽  
pp. 2529
Author(s):  
فاطمة محمد أمين العمري

1994 ◽  
Vol 29 (4) ◽  
pp. 127-132 ◽  
Author(s):  
Naomi Rea ◽  
George G. Ganf

Experimental results demonstrate bow small differences in depth and water regime have a significant affect on the accumulation and allocation of nutrients and biomass. Because the performance of aquatic plants depends on these factors, an understanding of their influence is essential to ensure that systems function at their full potential. The responses differed for two emergent species, indicating that within this morphological category, optimal performance will fall at different locations across a depth or water regime gradient. The performance of one species was unaffected by growth in mixture, whereas the other performed better in deep water and worse in shallow.


2019 ◽  
Vol 30 ◽  
pp. 12005
Author(s):  
Elena Efremova ◽  
Alexander Dmitriev ◽  
Lev Kuzmin ◽  
Manvel Petrosyan

A method for wireless distance measurement using ultrawideband chaotic radio pulses based on statistical analysis is proposed. Experimental results are discussed.


2021 ◽  
pp. 026765832110158
Author(s):  
Radek Skarnitzl ◽  
Petr Čermák ◽  
Pavel Šturm ◽  
Zora Obstová ◽  
Jan Hricsina

The use of linking or glottalization contributes to the characteristic sound pattern of a language, and the use of one in place of the other may affect a speaker’s comprehensibility and fluency in certain contexts. In this study, native speakers of Czech, a language that is associated with a frequent use of glottalization in vowel-initial word onsets, are examined in the second language (L2) context of three Romance languages that predominantly employ linking between words (Spanish, Italian and Portuguese). In total, 29 native speakers and 51 non-native learners were asked to read a short text in the respective language. The learners were divided into two groups based on their experience with the target language. A number of other factors were examined in a mixed-effects logistic regression model (segmental context, lexical stress, prosodic breaks, and the semantic status of the words). The main results show that, regardless of the target language, the more experienced (ME) learners displayed significantly lower rates of glottalization than the less experienced (LE) learners, but significantly higher rates than native speakers. The pedagogical implications of the results are discussed.


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