A congenital heart disease (CHD) is a defect in the structure of the heart and great vessels of a newborn.CHD s are classified into Cyanotic and Acyanotic. The most common cyanotic heart disorder in infants is Tetralogy of Fallot (TOF). Among Acyanotic heart disorders, Ventricular Septal Defect (VSD), Atrial Septal Defect (ASD), and Patent Ductus Arteriosus (PDA) are common. The present work ai...

In this paper we study changes of the articulatory organs from young adulthood to old age. In particular, we focus on how the larynx and vocal folds age along with the rest of the body. The objective of the paper is to automatically compute the effects of vocal aging on fundamental frequency and the formants. We compare trends of the fundamental, 1st, 2nd, and 3rd formant frequencies as the age...

Previous investigations indicate that as one approaches, the upper or lower limits of the modal or falsetto phonational registers, the range of vocal intensities the speaker is capable of producing decreases. However, no data are available relating frequency/ intensity changes for extremely low frequency phonation, often called glottal or vocal fry due to its perceptual attributes. The purpose ...

In a between-subject perception task, listeners either identified full words or vowels isolated from these words at F0s between 220 and 880 Hz. They received two written words as response options (minimal pair with the stimulus vowel in contrastive position). Listeners' sensitivity (A') was extremely high in both conditions at all F0s, showing that the phonological function of vowels can also b...

This work compares the accuracy of fundamental frequency and formant frequency estimation methods and maximum a posteriori (MAP) prediction from MFCC vectors with hand-corrected references. Five fundamental frequency estimation methods are compared to fundamental frequency prediction from MFCC vectors in both clean and noisy speech. Similarly, three formant frequency estimation and prediction m...

By using the sixth order WKB approximation we calculate for an electromagnetic field propagating in D-dimensional Schwarzschild and Schwarzschild de Sitter (SdS) black holes its quasinormal (QN) frequencies for the fundamental mode and first overtones. We study the dependence of these QN frequencies on the value of the cosmological constant and the spacetime dimension. We also compare with the ...

Tones in tonal languages are defined based on the characteristics of their fundamental frequencies. However, it has been shown that fundamental frequencies alone do not lead to good tone identification, either by human or machines. This paper reports a study based on tone perception experiments in which participants identified Thai tones from recorded mono-syllabic, bi-syllabic, and trisyllabic...