Article
Utilizing Auralization to Investigate Psychoacoustic Perception of Vibrating Structures (en)
* Presenting author
Abstract:
Improving the listening experience of vibroacoustic scenarios is an important task in many industry applications, be it cabin noise inside a passenger car or machine noise in factory halls. Numerical models enable highly accurate predictions of such sound fields. These models, however, yield physical descriptions only. Within the scope of human perception, a description of the perceptual domain through psychoacoustic metrics and listening tests appears to be an important extension of analysis. This leads to the necessity of physical prototypes or authentic auralizations of numerical solutions.This contribution aims to create a framework for psychoacoustic analysis of auralized vibroacoustic problems and investigate the benefit of perceptually evaluating auralizations in addition to physical metrics.For this purpose, a basic case study is conducted. First, complex sound pressure is computed in front of a simple vibrating plate. Performing an inverse discrete Fourier-transform on the resulting pressure yields a time signal that resembles an impulse response. This response is subsequently used for convolution with several different excitation signals in order to simulate a basic vibroacoustic scenario. Finally, a sensitivity analysis is performed for several perceptual characteristics with respect to geometrical changes of the vibrating plate and compared with sensitivities for the physical domain.