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Title: Detection and emotional evaluation of an electric vehicle's exterior sound in a simulated environment
Authors: Singh S.
Payne S.R.
Jennings P.A.
Published in: Proceedings of 42nd International Congress and Exposition on Noise Control Engineering 2013, INTER-NOISE 2013: Noise Control for Quality of Life
Abstract: Electric vehicles are quiet at low speeds and thus potentially pose a threat to pedestrians' safety. Laws are formulating worldwide that mandate these vehicles emit sounds to alert the pedestrians of the vehicles' approach. It is necessary that these sounds promote a positive perception of the vehicle brand, and understanding their impact on soundscapes is also important. Detection time of the vehicle sounds is an important measure to assess pedestrians' safety. Emotional evaluation of these sounds influences assessment of the vehicle brand. Laboratory simulation is a new approach for evaluating exterior automotive sounds. This study describes the implementation of laboratory simulation to compare the detection time and emotional evaluation of artificial sounds for an electric vehicle. An Exterior Sound Simulator simulated audio-visual stimuli of an electric car passing a crossroad of a virtual town at 4.47 ms-1(10 mph), from the perspective of a pedestrian standing at the crossroad. In this environment, 15 sounds were tested using experiments where participants detected the car and evaluated its sound using perceptual dimensions. Results show that these sounds vary significantly in their detection times and emotional evaluations, but crucially that traditional metrics like dB(A) do not always relate to the detection of these sounds. Detection time and emotional evaluation do not have significant correlation. Hence, sounds of a vehicle could be detected quickly, but may portray negative perceptions of the vehicle. Simulation provides a means to more fully evaluate potential electric vehicle sounds against the competing criteria.
Citation: Proceedings of 42nd International Congress and Exposition on Noise Control Engineering 2013, INTER-NOISE 2013: Noise Control for Quality of Life, (2013), 542- 550. Innsbruck
Issue Date: 2013
Publisher: OAL-Osterreichischer Arbeitsring fur Larmbekampfung
Keywords: Detection
Vehicle exterior sounds
Author Scopus IDs: 56215217100
Author Affiliations: Singh, S., WMG, University of Warwick, United Kingdom
Payne, S.R., WMG, University of Warwick, United Kingdom
Jennings, P.A., WMG, University of Warwick, United Kingdom
Appears in Collections:Conference Publications [ME]

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