Sound Quality Metric Development for Wind Buffeting and Gusting Noise 2003-01-1509
Customer annoyance of steady-state wind noise correlates well with loudness. A common objective metric to capture average loudness is the ISO532B or Zwicker method. However, it has been shown previously that time-varying wind noise can also significantly affect customer annoyance, independent of average loudness. Causes of time-varying wind noise include wind buffeting generated by other vehicles, and also wind gusting.
This paper summarizes the development of an objective metric that correlates well with subjective impressions of wind gusting/buffeting. The model is based on a general impulsive noise model with parameters tuned specifically for time-varying wind characteristics. The model consists of a psychoacoustic processing stage followed by a gusting detection stage, where the psychoacoustic stage is extracted from a time-varying loudness model. The output of the gusting model is a time series that indicates the location and “intensity” of wind gusts. The information in this time series is reduced to a single number that indicates the amount of gusting in the wind noise. An overview of the model and correlation of the metric to various listening studies are presented.
Citation: Blommer, M., Amman, S., Abhyankar, S., and Dedecker, B., "Sound Quality Metric Development for Wind Buffeting and Gusting Noise," SAE Technical Paper 2003-01-1509, 2003, https://doi.org/10.4271/2003-01-1509. Download Citation
Author(s):
Mike Blommer, Scott Amman, Sanjay Abhyankar, Bill Dedecker
Affiliated:
Ford Motor Company
Pages: 8
Event:
SAE 2003 Noise & Vibration Conference and Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 2003 Transactions Journal of Passenger Cars - Mechanical Systems-V112-6
Related Topics:
Sound quality
Noise
Technical review
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