Sound quality order equalization optimization and active sounding design method based on genetic algorithm

Abstract

The invention relates to a sound quality order equalization optimization and active sounding design method based on a genetic algorithm. Original engine order noise is used as the basis of sound synthesis. The roar degree index representing the acceleration force feeling and the motion feeling in the vehicle is used as an optimization target; the roar degree index calculation model is corrected bysubjective sound quality evaluation of multi-sample in-vehicle sound, the advantages of the genetic algorithm in the aspect of parallel search are considered, the order balance parameters and the subjective and objective roar degree indexes are input into the genetic algorithm optimization model, and therefore the optimal order matching parameter estimation is obtained. According to the method, atheoretical guidance framework can be provided for the design of active sound production, so that the sound environment in the vehicle can be customized and developed according to the requirements oftarget group customers, the brand identification degree of the vehicle model is improved, the design period is shortened, and a satisfactory sound quality effect is achieved.

Description

technical field [0001] The invention belongs to the field of active sound quality control of noise, in particular to a control method capable of realizing active sound generation in the passenger compartment (cockpit) of an automobile Background technique [0002] With the vigorous development of intelligence, the technology of automobile smart cockpit is in the ascendant, and consumers' demand for the acoustic environment of the cockpit is changing with each passing day. Traditional NVH passive control technology is difficult to achieve satisfactory sound quality in the car, and active sound quality control technology has emerged as the times require. Among them, the active sound technology in the car can not only highlight the recognition of the car brand, but also meet the subjective sound quality needs of consumers and improve the driving pleasure, which has received more and more attention. [0003] In 1997, Rudolf Bisping proposed an experimental analysis method for i...

AI Technical Summary

Problems solved by technology

Due to the subjectivity and blindness in the design process, the design parameters have to be revised repeatedly according to the subjective evaluation effect, the entire design cycle takes a long time, and it is difficult to achieve satisfactory sound quality effects

Images