Prediction of psychoacoustic metrics from suspension induced vibration and road induced noise using transfer path and psychoacoustic analysis techniques

Authors

  • Nebojsa Radic ABC Air Management Systems Inc., 51 Rexdale Blvd., Toronto, ON M9W 1P1, Canada
  • Colin Novak Dept. of Mechanical Engineering, University of Windsor, 401 Sunset, ON N9B 3P4, Canada
  • Helen Ule ABC Air Management Systems Inc., 51 Rexdale Blvd., Toronto, ON M9W 1P1, Canada

Keywords:

Acoustic variables measurement, Frequency response, Pressure measurement, Quality control, Ultrasonics, Vibration measurement, Acoustic pressure measurements, Analysis techniques, Chevrolet, Frequency response functions, Induced noise, Induced vibrations, Noise and vibration, Psycho-acoustic metrics, Sound pressure level, Sound pressures, Sound Quality, Time signals, Transfer paths

Abstract

A study was conducted to establish a correlation between the noise and vibration measurements taken outside of the vehicle to noise and psychoacoustic observations inside it. These parameters included roughness and fluctuation strength along with the A-weighted sound pressure level. Acoustic pressure measurements were performed inside a 2004 Chevrolet Epica cabin at the driver's left ear location using conventional microphones and at the passenger's ear position with a binaural head for the evaluation of the resulting sound quality. An accelerometer positioned on the wheel hub was stationary for conducting the entire investigation for vibration acquisition. The ten acquired time signals were used for determining the frequency response functions (FRF) and coherence between the pressure and acceleration excitations from outside the vehicle and the sound pressure obtained inside the cabin.

Published

2009-09-01

How to Cite

1.
Radic N, Novak C, Ule H. Prediction of psychoacoustic metrics from suspension induced vibration and road induced noise using transfer path and psychoacoustic analysis techniques. Canadian Acoustics [Internet]. 2009Sep.1 [cited 2020Oct.22];37(3):68-9. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2137

Issue

Vol. 37 No. 3 (2009)

Section

Proceedings of the Acoustics Week in Canada

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