PURPOSE A previous investigation (Lee & Iverson, 2012) found that English and Korean stop categories were fully distinguished by Korean-English bilingual children at 10 years of age but not at 5 years of age. The present study examined vowels produced by Korean-English bilingual children of these same ages to determine whether and when bilinguals establish distinct vowel categories across their...

In this paper, we propose novel spectrally weighted mel-frequency cepstral coefficient (WMFCC) features for emotion recognition from speech. The idea is based on the fact that formant locations carry emotion-related information, and therefore critical spectral bands around formant locations can be emphasized during the calculation of MFCC features. The spectral weighting is derived from the nor...

The vocal tract was excited transcutaneously at a point just above the glottis hy an e • ternal sweep-tone signal, in order to measure its transfer characteristics acoustically as continuous frequency functions. An analysis-by-synthesis procedure derived reliable data of vowels, in particular of the formant bandwidths, for three male and three female normal subjects. It has been shown for the c...

Talkers show sensitivity to a range of perturbations of auditory feedback (e.g., manipulation of vocal amplitude, fundamental frequency and formant frequency). Here, 50 subjects spoke a monosyllable ("head"), and the formants in their speech were shifted in real time using a custom signal processing system that provided feedback over headphones. First and second formants were altered so that th...

An experiment was carried out in which eight bass/baritone singers were recorded while singing in both choral and solo modes. Together with their own voice, they heard the sound of the rest of the choir and a piano accompaniment, respectively. The recordings were analyzed in several ways, including computation of long-time-average spectra for each passage, analysis of the sound levels in the fr...

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...

The singer's formant has been found to be an important acoustic characteristic of professional operatic altos, tenors, baritones and basses, while it seems unclear whether or not sopranos possess it. According to Dmitriev & Kiselev (1 979) the JFequencies of the "high singing formant" increases @om lower voices to higher voices. By means of a listening test with synthesised vowel stimuli we exa...

Speaking rate and vowel duration are generally thought to affect the dynamic structure of vowel formant tracks. This idea was tested by letting a single professional speaker read a long text at two different speaking rates, fast and normal. The extent to which the shape of the first and second formant tracks of 8 Dutch vowels varied under the two different speaking rate conditions was investiga...

One of the benefits musicians derive from their training is an increased ability to detect small differences between sounds. Here, we asked whether musicians' experience discriminating sounds on the basis of small acoustic differences confers advantages in the subcortical differentiation of closely related speech sounds (e.g., /ba/ and /ga/), distinguishable only by their harmonic spectra (i.e....