Speech and Hearing Science Commons^™

The Relationship Between Fundamental Frequency Variation And Articulation In Healthy Speech Production, Casey Behre

Senior Honors Projects, 2010-2019

Fundamental Frequency (F0) and articulation are two factors of speech production that impact speech perception, and yet the potential interactions of these two factors are not well understood. Their relationship has potential theoretical as well as clinical implications. This Honors Project aims to better understand this relationship by examining changes in fundamental frequency (F0) and the acoustic vowel space as an index of articulatory behaviors with a within-speaker approach. Specifically, F0 variations were examined in relation to the acoustic vowel space for 10 male native speakers of American English. Two sets of acoustic measures were made to evaluate F0 and …

The Effects Of Age On The Perception Of Frequency In Noise, Mary E. Scherer

Dissertations, 2014-2019

Difficulty understanding speech in the presence of background noise is one of the most common complaints of older adults, both with and without hearing loss. One possible contributing factor is an age-related decline in neural synchrony (e.g., phase locking). Tones-in-noise were used in an attempt to disrupt rate-place coding of frequency and to encourage participants to use phase-locked, temporal representations of frequency during a behavioral frequency discrimination task. Fourteen adults participated in the study (five younger, aged 21-29; four middle aged, 41-50; and five older, aged 61-80). Participants had clinically normal hearing sensitivity (≤ 25 dB HL at octave frequencies …

Development And Deployment Of A Small Stereo-Hearing Testing System: Two Manuscripts, Sofia A. Ganev

Dissertations, 2014-2019

MANUSCRIPT #1 TITLE

Development of a Deployable Stereo-Hearing System

ABSTRACT

Objective: To investigate the effectiveness and efficiency of a portable stereo-hearing testing system with the intent of deployment for data collection in future studies. We quantify sound localization accuracy and speech-in-noise thresholds comparing unilateral (such as single-sided deafness) and bilateral subjects. We desired to design a small, inexpensive system that would show a large effect size between binaural and monaural subjects in a variety of stereo hearing tasks.

Methods: Subjects were tested on localization accuracy and speech understanding in noise using a laboratory-made stereo-hearing testing device. For the …