Spectral Analyses in Truck Tire Noise Fields

740608

02/01/1974

Event
National West Coast Meeting
Authors Abstract
Content
This paper discusses the importance of the spectral distribution of the energy in the sound to the dB(A) level of the usual passby test. A described technique obtains reproducible “real-time” spectra from the nonstationary sound field. Doppler effect and source frequency shift are quantified in relating these spectra to the tread pattern repetitions. Inverse square law fitting is viewed through the two-source-microphone relation which changes during the spectral window period. Spectra are shown for 6, 12, and 50 ft (1.83, 3.66, and 15.2 m) passby microphones and for a microphone carried on the truck.
Meta TagsDetails
DOI
https://doi.org/10.4271/740608
Pages
8
Citation
Miller, R., and Thrasher, D., "Spectral Analyses in Truck Tire Noise Fields," SAE Technical Paper 740608, 1974, https://doi.org/10.4271/740608.
Additional Details
Publisher
Published
Feb 1, 1974
Product Code
740608
Content Type
Technical Paper
Language
English