AIMS To compare voice quality as defined by formant analysis using a sustained vowel in patients who have undergone a partial glossectomy with a group of normal subjects. METHODS & PROCEDURES The design consisted of a single centre, cross-sectional cohort study. The setting was an Adult Tertiary Referral Unit. A total of 26 patients (19 males) who underwent partial glossectomy and 31 normal v...

The purpose of this study is to illustrate certain features of the place of articulation of Japanese vowels on the basis of formant frequency. For this purpose, two types of relationship between vowel duration and formant frequency were examined. The first of these relationships was the correlation between speaking rate and formant frequency. The result of this analysis showed that as speaking ...

This paper describes a new formant analysis technique whereby the formant parameters are represented in the form of Gaussian mixture distributions. These are estimated from the Discrete Fourier Transform (DFT) magnitude spectrum of the speech signal. The parameters obtained are the means, variances and the masses of the density functions, which are used to calculate centre frequencies, bandwidt...

To better understand how the auditory system extracts speech signals in the presence of noise, discrimination thresholds for the second formant frequency were predicted with simulations of auditory-nerve responses. These predictions employed either average-rate information or combined rate and timing information, and either populations of model fibers tuned across a wide range of frequencies or...

Formant frequency estimation and tracking are among the most fundamental problems in speech processing. In the former task the input is a stationary speech segment such as the middle part of a vowel and the goal is to estimate the formant frequencies, whereas in the latter task the input is a series of speech frames and the goal is to track the trajectory of the formant frequencies throughout t...

Vocal tract resonance characteristics in acoustic speech signals are classically tracked using frame-by-frame point estimates of formant frequencies followed by candidate selection and smoothing using dynamic programming methods that minimize ad hoc cost functions. The goal of the current work is to provide both point estimates and associated uncertainties of center frequencies and bandwidths i...

While social and behavioural contexts are known to affect the acoustic structure of vocal signals in several mammal species, few studies have investigated context-related acoustic variation during inter-sexual advertisement and/or intra-sexual competition. Here we recorded male fallow deer groans during the breeding season and investigated how key acoustic parameters (fundamental frequency and ...

The current study explores the variations of formant frequency English vowels produced by eighty students BS and language at NUML International Islamic University Islamabad. research defines acoustic monophthongal under influence gender four standard regional varieties Pakistan presents a macro-level description Monophthongs Pakistani English. respondents belong to Balochi, Pushto, Punjabi, Sin...

OBJECTIVE To report the formant characteristics of English-speaking Lebanese men during steady prolongation of vowels /a/ and /i/. DESIGN Cross-sectional study involving volunteer participants. PARTICIPANTS Fifty healthy English-speaking males with a mean age of 32 ± 4.027 years and a range of 42 years (18-60). MATERIALS AND METHODS A total of 50 healthy males between the age of 18 and 60...