Power Window Sound Quality - A Case Study

Paper #:
  • 972017

Published:
  • 1997-05-20
Citation:
Penfold, J., "Power Window Sound Quality - A Case Study," SAE Technical Paper 972017, 1997, https://doi.org/10.4271/972017.
Author(s):
Pages:
5
Abstract:
The sound quality of systems with electric motors has become increasingly important to customer perception of vehicle quality. This paper summarizes the results of a case study of the sound quality of twelve power window systems. Paired comparisons of preference and semantic differential subjective evaluations were performed with twenty-nine test subjects. The test subjects clearly perceived differences between the power window system sounds when asked to scale the sounds using the adjective pairs of ““no whine/whine”” and “steady/fluctuating”. A regression analysis related test subject preferences to a linear combination of IS0532B band passed loudness (300-2500 Hz) and motor speed dip (% of normalized motor speed).
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