Shock and Vibration / 2018 / Article / Fig 2

Research Article

Artificial Engine Sound Synthesis Method for Modification of the Acoustic Characteristics of Electric Vehicles

Figure 2

Spectral characteristics of (a) gasoline and (b) diesel engine sounds measured in the laboratory. The spectrum showed a decreasing level with increasing frequency, and the combustion noise at high frequencies over 1 kHz was larger for the diesel engine.

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