Sound Quality Development Using Psychoacoustic Parameters with
Special Focus on Powertrain Noise 2020-01-5000
This research uses vehicle interior noise at the driver position during full load
acceleration to objectively define the resultant Sound Quality (SQ) of the
vehicle analyzed by focusing on powertrain noise. A calculation method is
developed to rank vehicles in order of customer preference (Sound Rank) and
provide a subjective evaluation score for different error states a vehicle can
encounter. In order to calculate these two scores, a pleasantness parameter is
obtained using standard calculated psychoacoustic parameters with different
weighting scores depending on their importance toward the preference ranking.
Then pleasantness is correlated with jury test results and subjective
The results obtained show that the model is capable of quantifying the vehicle SQ
during the vehicle development process and position a vehicle within a
two-dimensional (2D) powerful-refined plot. This is achieved with the help of
psychoacoustic parameter scatter bands. The model provides an objective tool to
quantify and verify the resultant SQ to help meet and optimize Noise, Vibration,
and Harshness (NVH) targets.
Citation: Victor, G., Zhirong, G., Junfeng, H., Xiaolong, D. et al., "Sound Quality Development Using Psychoacoustic Parameters with Special Focus on Powertrain Noise," SAE Technical Paper 2020-01-5000, 2020. Download Citation
Garanto Victor, Geng Zhirong, Hu Junfeng, Deng Xiaolong, Yang Wanli, Wang Hao
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