Purpose: Smoothed cepstral peak prominence (CPPS) and harmonics-to-noise ratio (HNR) are acoustic measures related to the periodicity, harmonicity, and noise components of an acoustic signal. To date, there is little evidence about the advantages of CPPS over HNR in voice diagnostics. Recent studies indicate that voice fundamental frequency (F0)…

Nonmanual articulations in sign languages range from being semantically impoverished to semantically rich, and from being independent of manual articulations to coordinated with them. But, while this range has been well noted, certain nonmanuals remain understudied. Of particular interest to us are nonmanual articulations coordinated with manual…

Purpose: The aim of this study was to conduct a systematic review and meta-analysis to investigate whether preschool- and early school-age children with speech sound disorders (SSDs) have difficulties with speech perception. Method: Systematic searching of 8 electronic databases identified 73 eligible studies across 71 articles examining the…

Vowel nasality is the most controversial phonological aspect of Brazilian Portuguese. Scholars suggest the oral-nasal vowel distinction may not exist. A consonant-like nasal resonance presence at the vowel's right edge (the nasal appendix) might make nasal vowels the product of a contextual vowel nasalization rule. Others suggest that the appendix…

This article aims to analyze whether formal instruction influences Brazilian speakers' perception of the English high back vowels contrast. There have been a few L2 pieces of research that focused on the instruction of specific vowel contrasts. Previous studies indicate that a single L1 category seems to be a source of difficulty to L2 vowel…