Noise Inside Motor Vehicles: Acoustic Parameters Correlation

2003-01-3532

11/18/2003

Event
SAE Brasil 2003 Congress and Exhibit
Authors Abstract
Content
The paper looks for the degree of linear correlation of some acoustic parameters when their results are compared taking into consideration the internal noise of a set of passengers cars and another set of commercial vehicles. The acoustic parameters dealing with the overall noise (Loudness, dB(A) and dB(B)) and those related to the high frequency portion of the spectrum (Articulation Index and Sharpness) are chosen. The sound pressure levels in the passenger compartment are measured according to ISO 5128. The parameters are calculated in some specific velocities. A least square fit to a straight line to each pair of the acoustic parameters is applied. The results are discussed taking into consideration the degree of correlation trying to investigate how dependent or independent the parameters are. In addition it is possible to see the fluctuation range of these parameters concerning each set of vehicles.
Meta TagsDetails
DOI
https://doi.org/10.4271/2003-01-3532
Pages
17
Citation
Onusic, H., Baptista, E., Hage, M., and Cheruti, R., "Noise Inside Motor Vehicles: Acoustic Parameters Correlation," SAE Technical Paper 2003-01-3532, 2003, https://doi.org/10.4271/2003-01-3532.
Additional Details
Publisher
Published
Nov 18, 2003
Product Code
2003-01-3532
Content Type
Technical Paper
Language
English