Sound effect generation device for vehicles

Abstract

This sound effect generation device for vehicles, which generates engine sound effects on the basis of a vibration sound database including a fundamental wave sound comprising a fundamental frequencycomponent, and a plurality of adjustment wave sounds comprising frequency components other than the fundamental frequency component, is provided with: a travel state detection unit for detecting the travel state of a vehicle; a risk level determination unit which is capable of determining the risk level of the vehicle on the basis of the travel state detected by the travel state detection unit; and a sound effect generation unit which, when the risk level has been determined to be equal to or greater than a prescribed value by the risk level determination unit, synthesizes the fundamental wavesound and one or more dissonant adjustment wave sounds comprising dissonant frequency components other than integer-order frequency components and half-order frequency components.

Description

technical field [0001] The present invention relates to an effect sound generating device for a vehicle, and in particular to an effect sound generating device for a vehicle which synthesizes a dissonant adjustment wave sound into a fundamental wave sound according to the degree of danger of the vehicle. Background technique [0002] In recent years, the quietness of the car interior has been greatly developed in terms of body structure and control. As a result, there arises a problem that the driving presence based on the engine sound cannot be properly obtained. [0003] For this reason, there is the following technical solution: measure the driving operation amount of the driver, and generate an effect sound generating device (also called an active engine sound generator) in the vehicle room to generate an effect sound of the engine corresponding to the driving operation amount through the vehicle interior speaker. (Active Engine Sound) generating device). [0004] The ...

AI Technical Summary

Problems solved by technology

As a result, there is a problem that the driving presence based on the sound of the engine cannot be properly obtained.

[0018] However, when music is played at a high volume or when the driver and other occupants (passengers) are talking, etc., it is possible that the driver cannot Recognize alerts for dangerous conditions

[0019] On the other hand, in the case of alarms with high sound pressure levels, there is also the possibility of causing unnecessary annoyance or fear to other occupants

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