Speakers' ability to control vocal tract output: I. Phrase‐level utterance duration

Mappings between vocal tract area functions, vocal tract resonances and speech formants for multiple speakers

This study looks at mappings between vocal tract area functions (obtained from MRI scans), vocal tract resonances, and speech formants for five New Zealand English (NZE) speakers. All eleven NZE monophthongs were investigated, for each speaker. Principal component (PC) analysis on the area functions of both the individual speakers and combined speaker set is performed. In all cases the first tw...

Characterizing Vocal Tract Dynamics Across Speakers Using Real-Time MRI

Real-time magnetic resonance imaging (rtMRI) provides information about the dynamic shaping of the vocal tract during speech production and valuable data for creating and testing models of speech production. In this paper, we use rtMRI videos to develop a dynamical system in the framework of Task Dynamics which controls vocal tract constrictions and induces deformation of the air-tissue boundar...

A Human Vocal Utterance Corpus

Vocal Tract Dimensional Development 1 Vocal Tract Dimensional Development for Male and Female Adolescent Speakers: ART Procedures

This study aimed to (a) investigate the effect of age and gender on adolescent’s vocal tract changes with acoustic reflection technology (ART) and (b) compare vocal tract growth and vowel formant frequency changes as a function of growth. A total of ninety five male and female adolescents aged between 10 and 18 were recruited and their vocal tract parameters were measured using ART. Formant fre...

Improving short utterance based i-vector speaker recognition using source and utterance-duration normalization techniques

A significant amount of speech is typically required for speaker verification system development and evaluation, especially in the presence of large intersession variability. This paper introduces a source and utterance-duration normalized linear discriminant analysis (SUN-LDA) approaches to compensate session variability in short-utterance i-vector speaker verification systems. Two variations ...