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Some Studies on Acoustic-Phonetic Features of Telugu Vowels

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The paper presents a study on the formant frequencies of Telugu vowels in CNC context and their variation as well as distribution in different frequency planes. An attempt has been made to link the articulators with the frequency variation. A comparative degree of variation for different pairwise articulatory distinctive features are discussed. A statistical test on the formant frequencies reveals that they follow a normal distribution. The study on vowel duration indicates an influence of the degree of opening on the duration. From a rather limited study on the effect of the following consonant on the vowel duration in the CNC context it is indicated that there exists a correlation between phonetical environment and the vowel duration.


Für Telugu-Vokale in CNC-Kontext wird eine Untersuchung der Formantfrequenzen sowie ihrer Änderung und Verteilung in verschiedenen Frequenzebenen vorgestellt. Es wurde versucht, die Artikulatoren mit der Frequenzänderung in Verbindung zu bringen. Die Variationsgrade für verschiedene, paarweise artikulatorisch gegensätzliche Merkmale werden verglichen. Ein statistischer Test zeigt, daß die Formantfrequenzen einer Normalverteilung unterliegen. Eine Untersuchung der Vokaldauer weist auf einen Einfluß des Öffnungsgrades auf die Dauer hin. Aus einer recht begrenzten Untersuchung zum Einfluß des nachfolgenden Konsonanten auf die Vokaldauer im CNC-Kontext kann man folgern, daß zwischen phonetischer Umgebung und Vokaldauer eine Korrelation besteht.


On présente une étude sur les fréquences des formants des voyelles de la langue telugu dans le contexte consonne-nasale-consonne, ainsi que sur leurs variations et leur distribution dans différentes zones de fréquences. On a cherché à rattacher les variations de fréquence à l'identité des locuteurs ainsi qu'à des particularités de l'articulation. Un contrôle statistique sur les fréquences des formants révèle une distribution normale. Une étude sur la durée des voyelles décèle une influence du degré d'ouverture. En recherchant l'effet de la consonne qui suit la voyelle dans le contexte consonne-nasale-consonne, on a observé une corrélation entre la durée de cette voyelle et son environnement phonétique.
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Document Type: Research Article

Publication date: November 1, 1978

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  • Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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