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LSU Master's Theses

Theses/Dissertations

2003

Expansion

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Full-Text Articles in Medicine and Health Sciences

The Effects Of Expansion On Objective And Subjective Benefit In Hearing-Impaired Listeners, Ashley B. Hill Jan 2003

The Effects Of Expansion On Objective And Subjective Benefit In Hearing-Impaired Listeners, Ashley B. Hill

LSU Master's Theses

The present research involves two studies. Twenty hearing-impaired participants were divided into two groups depending on their audiometric data and binaurally fit with the Starkey Endeavour 3211 hearing instruments. Experiment I was designed to determine if the use of expansion technology affected objective and subjective benefit in hearing-impaired listeners. Probe microphone measures were obtained at 40, 50, and 60 dB SPL and with the speaker deactivated to ensure that the expansion feature was functioning. Listener performance was measured in quite using the Connected Speech Test (CST) and in noise using the Hearing in Noise Test (HINT) at 40, 50, and …