Electric vehicles have been receiving increasing interest in the last years for the well-known benefit that can be derived. However, electric cars do not produce noise as does an internal combustion engine vehicle, thus leading to safety issues for pedestrians and cyclists. Therefore, it is necessary to create an external warning sound for electric cars maintaining users’ sound quality expectation. In this context several sounds generated with different techniques are here proposed, taking into consideration some aspects of real engine characteristics. Furthermore, a subjective investigation is performed in order to define users’ preferences in the wide range of possible synthetic sounds.

Authors: Cecchi, Stefania; Primavera, Andrea; Romoli, Laura; Piazza, Francesco; Bettarelli, Ferruccio; Lattanzi, Ariano
Affiliations: Universitá Politecnica della Marche, Ancona (AN), Italy; Leaff Engineering, Ancona, Italy(See document for exact affiliation information.)
AES Convention: 133 (October 2012) Paper Number: 8778
Publication Date: October 25, 2012
Subject: Auditory Perception and Evaluation

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