A sound quality adaptive design method and device based on virtual driving platform

Abstract

The invention belongs to the technical field of automobile sound quality, and discloses a sound quality adaptive design method and device based on a virtual driving stand. When the present invention scores the sound quality performance of the acoustic samples, the evaluators are organized to use the virtual driving platform to control the driving of the simulated vehicle under a given working condition, and the virtual driving is reproduced through the visual reproduction module and the auditory reproduction module during the driving process. environment, play the pre-collected acoustic samples in the virtual driving environment; establish a subjective evaluation prediction model based on the relationship between the objective indicators of the acoustic samples and the subjective scoring results of the acoustic samples, and adaptively modulate the sound quality in each evaluation based on the subjective evaluation prediction model. Sound samples with evenly distributed levels. The device includes a virtual driving platform, a visual reproduction module, an auditory reproduction module, an evaluation module and a data processing module. The invention solves the problems of low efficiency and high cost of real vehicle evaluation in subjective evaluation, as well as lack of universality in listening room evaluation and untargeted sound quality design.

Description

technical field [0001] The invention belongs to the technical field of automobile sound quality, and more particularly, relates to a sound quality adaptive design method and device based on a virtual driving platform. Background technique [0002] At present, the evaluation methods of automobile sound quality are divided into subjective evaluation and objective evaluation. The objective evaluation is based on the physical parameters and psychological objective parameters of the sound, and evaluates the sound quality by calculating the loudness, sharpness, roughness, linearity, fluctuation, etc., and its foothold is to select objective indicators instead of subjective evaluation tests. Get estimated subjective feelings. The subjective evaluation takes the evaluator's feelings as the main body, and makes the evaluator feel the car sound through playback in the listening room environment or the real car environment. [0003] The subjective evaluation of the listening room env...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a sound quality self-adaptive design method and device based on a virtual driving platform, which solves the problems of low efficiency and high cost of real vehicle evaluation in subjective evaluation in the prior art, and the lack of universality and sound quality in listening room evaluation. Untargeted problems in quality design

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