An Exterior Sound Simulator (ESS) is a new tool for evaluating automotive exterior sounds in a virtual environment These virtual environments can replicate real-world environments where a pedestrian is likely to interact with a vehicle Thus, they can provide a more realistic context than conventional laboratory listening methods, whilst providing more experimental control than in conventional on-road evaluations Therefore, ESS combines the advantages of the traditional laboratory listening test and on-road evaluation methods, but has very few of their limitations However, to be a successful evaluation tool this simulator needs testing for its external validity This paper describes a study that compares evaluations performed in a real-world environment and in a replicated virtual environment using an ESS Fourteen participants evaluated an electric car m both these environments The visual scenario represented a pedestrian standing at a residential road junction while the car, situated behind the pedestrian on the adjacent parallel road, travelled towards them at 12 mph The car arrived at the junction at one of two different times Three potential sounds from a vehicle manufacturer were compared by measuring the vehicle's detection distance, evaluation of the vehicle sounds as recognisable and detectable, and through evaluation of the car as being powerful and pleasant ANOVA at an alpha level of 0.05 showed no significant differences between the results obtained from the virtual and real-world experiments for the subjective evaluations of detectabihty, powerfulness and pleasantness Thus, subjective evaluations of detectabihty and emotional characteristics of vehicle exterior sounds using the ESS' virtual environment can be generalized to a similar real-world situation.


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    Title :

    Evaluation of electric vehicle exterior sounds in virtual and real-world environments - a comparative study


    Contributors:


    Publication date :

    2014


    Size :

    8 Seiten, Bilder, 18 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





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