Title:
Evaluation of reaction times to sound stimuli on mobile devices
Evaluation of reaction times to sound stimuli on mobile devices
Author(s)
Wersényi, György
Nagy, Hunor
Csapó, Ádám
Nagy, Hunor
Csapó, Ádám
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Abstract
When developing new devices for assistive technology, it is
important to consider auditory response times to different kinds
of warning and navigational sounds. Perception, processing and
action following the presentation of auditory stimuli depends on
several parameters, the most important being the stimuli
themselves and the method used for providing feedback. With
the growing market penetration of mobile devices
(smartphones, tablets etc.) and increasing popularity of
crowdsourced solutions, we have chosen to develop a mobile
application for the measurement of reaction times with respect
to a wide range of stimuli, including sine tones, speech and
various kinds of clicks and noises. During tests, participants are
asked to indicate the direction of sound samples by pressing the
appropriate button on the touch screen. Stereo panning can be
used up to five directions. In this paper, our goal is to
demonstrate the viability of this approach through a set of basic
(at this time, not yet crowdsourced) tests performed using the
application. A rudimentary statistical evaluation of measured
response times and success rates was performed. Results were
compared to an earlier study using similar categories of stimuli.
As in that study, some relative differences between the stimuli
types were found, i.e. the 1 kHz panned sine and pink noise
categories were shown to be somewhat more favorable than
speech and click-trains. Future enhancements to the application
will include tilt-based input control – allowing for the
participation of visually impaired test subjects who cannot see
the response buttons – as well as extensions allowing for the
logging and analysis of large-scale crowdsourced test results.
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Date Issued
2015-07
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Proceedings
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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License..