Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 8 of 8 for “"auditory warning"”.
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Pulse rate, pulse pattern, and onset distance effects on subject braking responses while using an auditory collision warning signal
… and onset distance had on the performance of an auditory warning signal. The warning signal's purpose was to alert mobile crane operators of their proximity to overhead power lines. The study consisted of two experimental phases. The first phase consisted of three sections; A) development and …
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The effect of perturbation warning on attention switching abilities during dual-task performance in young and older adults
This study examined whether providing an auditory warning would facilitate attention switching abilities in older adults during dual-tasking. Fifteen young and 16 older adults performed a tracking task while recovering their balance from a support surface translation. For half of the trials, an …
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Effect of Sound Cue Frequency Filters on Front/Back Localization Performance for Three-Dimensional Verbal and Non-Verbal Warnings
… more demands are placed on the human operator, warnings have become an important part of display design. Although warnings have made a significant contribution to safety, problems still plague their design. Recent technological advances have been able to give sounds and warnings a …
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Effects of Multi-Modal Warning Systems on Elderly Drivers'Perceived Urgency and Comfort
… investigate multi-modality effects (visual and auditory) on the perception of urgency in elderly individuals addressing issues of safety and comfort. Twenty individuals (10 young, 10 elderly) from Montgomery County of Virginia participated in the laboratory study. In the pre-experimental …
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An Investigation into the Perceived Urgency of Auditory Warnings
… urgency of sound, with specific reference to auditory warning design. Psychophysical techniques were investigated as a means of measuring perceived urgency. The biases inherent in different techniques were reviewed. Free modulus magnitude estimation, fixed modulus magnitude estimation, …
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The perceived urgency and detection time of multi-tone and frequency-modulated warning signals in broadband noise
… the perceived (psychoacoustic) urgency of a warning and its situational urgency. In addition, many auditory warnings are not detectable within their environments. This research examined several prominent pulse parameters which affect the perceived urgency and detection time of auditory …
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Effects of Haptic and Auditory Warnings on Driver Intersection Behavior and Perception
… number of intersection-related crashes, haptic warnings and a combined haptic/auditory warning were explored and compared to combined visual/auditory warnings. The first phase of this study determined which haptic brake pulse warning candidate most often resulted in the driver successfully …
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Azimuthal Localization and Detection of Vehicular Backup Alarms Under Electronic and Non-Electronic Hearing Protection Devices in Noisy and Quiet Environments
… alarm signal, thus indicating the earlier forewarning by the standard alarm. In addition, passive hearing protection devices characterized with high attenuation significantly reduced the detection distance. These results may be applied to assist safety professionals in selecting hearing …