Application of subharmonics for active sound design of electric vehicles

2014 ◽  
Vol 136 (6) ◽  
pp. EL391-EL397 ◽  
Author(s):  
Doo Young Gwak ◽  
Kiseop Yoon ◽  
Yeolwan Seong ◽  
Soogab Lee
Keyword(s):  
Electric Vehicles ◽  
Sound Design

scholarly journals Optimization of the Sound of Electric Vehicles According to Unpleasantness and Detectability

2019 ◽  
Vol 1 (1) ◽  
pp. 3949-3958
Author(s):  
Jean-François Petiot ◽  
Killian Legeay ◽  
Mathieu Lagrange
Keyword(s):  
Genetic Algorithms ◽  
Electric Vehicles ◽  
Background Noise ◽  
The Other ◽  
Masking Effect ◽  
Sound Design ◽  
Experimental Protocol ◽  
Interactive Genetic Algorithms ◽  
Hearing Test

AbstractElectric Vehicles (EVs) are very quite at low speed, which can be hazardous for pedestrians. It is necessary to add warning sounds but this can represent an annoyance if they are poorly designed. On the other hand, they can be not enough detectable because of the masking effect due to the background noise. In this paper, we propose a method for the design of EV sounds that takes into account in the same time detectability and unpleasantness. It is based on user tests and implements Interactive Genetic Algorithms (IGA) for the optimization of the sounds. Synthesized EV sounds, based on additive synthesis and filtering, are proposed to a set of participants during a hearing test. An experimental protocol is proposed for the assessment of the detectability and the unpleasantness of the EV sounds. After the convergence of the method, sounds obtained with the IGA are compared to different sound design proposals. Results show that the quality of the sounds designed by the IGA method is significantly higher than the design proposals, validating the relevance of the approach.

Sound design for electric vehicles

Physics Today ◽  
2015 ◽  
Vol 68 (1) ◽  
pp. 17-17
Author(s):  
Richard J. Fitzgerald
Keyword(s):  
Electric Vehicles ◽  
Sound Design

Active Sound Design Methodologies for Hybrid and Electric Vehicles

2021 ◽  
Author(s):  
Jeffrey E. Pruetz ◽  
Georg Eisele ◽  
Kiran Govindswamy ◽  
Christoph Steffens
Keyword(s):  
Electric Vehicles ◽  
Sound Design ◽  
Design Methodologies

Electric Vehicles: Charging Ahead

2018 ◽  
Vol 88 (6) ◽  
pp. 54-78
Author(s):  
Robert L. Reid
Keyword(s):  
Electric Vehicles
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