Discrimination of natural acoustic variation in vocal signals

Which Acoustic and Phonological Factors Shape Infants' Vowel Discrimination? Exploiting Natural Variation in InPhonDB

A key research question in early language acquisition concerns the development of infants’ ability to discriminate sounds, and the factors structuring discrimination abilities. Vowel discrimination, in particular, has been studied using a range of tasks, experimental paradigms, and stimuli over the past 40 years, work recently compiled in a meta-analysis. We use this meta-analysis to assess whe...

Classification of EEG Signals for Discrimination of Two Imagined Words

In this study, a Brain-Computer Interface (BCI) in Silent-Talk application was implemented. The goal was an electroencephalograph (EEG) classifier for three different classes including two imagined words (Man and Red) and the silence. During the experiment, subjects were requested to silently repeat one of the two words or do nothing in a pre-selected random order. EEG signals were recorded by ...

The Effects of Size and Type of Vocal Fold Polyp on Some Acoustic Voice Parameters

Background: Vocal abuse and misuse would result in vocal fold polyp. Certain features define the extent of vocal folds polyp effects on voice acoustic parameters. The present study aimed to define the effects of polyp size on acoustic voice parameters, and compare these parameters in hemorrhagic and non-hemorrhagic polyps.Methods: In the present retrospective study, 28 individuals with hemorrha...

Acoustic Effects of Vocal Training

An Investigation of Vocal Tract Characteristics for Acoustic Discrimination of Pathological Voices

This paper investigates the effectiveness of measures related to vocal tract characteristics in classifying normal and pathological speech. Unlike conventional approaches that mainly focus on features related to the vocal source, vocal tract characteristics are examined to determine if interaction effects between vocal folds and the vocal tract can be used to detect pathological speech. Especia...