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Speech Intelligibility As A Function Of The Propositionality Of Background Noise, Gail Swanstrom
Speech Intelligibility As A Function Of The Propositionality Of Background Noise, Gail Swanstrom
Dissertations and Theses
The purpose of this investigation was to measure the ability of young normal hearing listeners to perceive speech in the presence of a background noise which varies in the relative intensity of its semantic content. The Speech Perception in Noise test was mixed with a two-component competing noise complex in which the narrative-to- speech noise ratio varied in 2 dB increments from -2 dB Na/SpN to +8 dB Na/SpN. These stimuli were presented at an overall +8 dB signal-to-noise ratio to thirty young normal hearing adults through the soundfield system. The differences between the mean error scores and standard deviations …
One-Third Octave Band Augmented Speech Discrimination Testing For Normal Hearing Listeners, Nancy Marie Bowen
One-Third Octave Band Augmented Speech Discrimination Testing For Normal Hearing Listeners, Nancy Marie Bowen
Dissertations and Theses
The purpose of this study was to investigate the effects of a 500 Hz and 3150 Hz one-third octave band augmentation on the speech discrimination ability of normal hearing listeners and whether such effects vary with signal presentation level. The augmented portion of monosyllabic words was systematically varied from 5-55dB above the intensity level of the unfiltered version of the words and presented simultaneously to one ear.